Letteratura scientifica selezionata sul tema "Cucurbitaceae"

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Articoli di riviste sul tema "Cucurbitaceae"

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Schrire, B. D. "CUCURBITACEAE". Bothalia 17, n. 2 (23 ottobre 1987): 181. http://dx.doi.org/10.4102/abc.v17i2.1028.

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De Winter, B. "CUCURBITACEAE". Bothalia 20, n. 2 (17 ottobre 1990): 209–11. http://dx.doi.org/10.4102/abc.v20i2.920.

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Bruyns, P. "CUCURBITACEAE". Bothalia 23, n. 2 (10 ottobre 1993): 233–35. http://dx.doi.org/10.4102/abc.v23i2.808.

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Lamont, William J. "Cucurbitaceae 2002". HortScience 39, n. 1 (febbraio 2004): 203B—203. http://dx.doi.org/10.21273/hortsci.39.1.203b.

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Andres, Thomas C. "CUCURBITACEAE WEB SITE". Acta Horticulturae, n. 510 (marzo 2000): 139–42. http://dx.doi.org/10.17660/actahortic.2000.510.23.

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Syamsuri, Syamsuri. "Analysis Of The Economic Potential And Efficiency Of Cucurbitaceae Agricultural Businesses In The Peatlands". JURNAL AGRIBISAINS 10, n. 1 (2 aprile 2024): 11–19. http://dx.doi.org/10.30997/jagi.v10i1.8880.

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The purpose of this study was to analyze the economic potential of peatland utilization based on local wisdom by farmers in the Rasau Jaya Village and to analyze the most efficient Cucurbitaceae species to run based on the results of production BEP values, price BEP, ROI, PP, and R/C. The method used in this study is descriptive with a Participatory Rural Appraisal approach, meaning that it involves the active role of the community in obtaining data. Data collection techniques were carried out through observation and interviews using questionnaires. Sample collection was carried out by purposive sampling, with a total sample that met the inclusion criteria of 21 people. Analysis of economic potential data is carried out by calculating farmer receipts and income, while efficiency analysis is carried out by looking at the value of production BEP, price BEP, ROI, PP, and R/C. The results showed that the receipts for pumpkin, cucumber, watermelon, melon, squash and bitter gourd respectively were Rp. 2,375,000, Rp. 2,400,000, Rp. 2,800,000, Rp. 3,000,000, Rp. 2,400,000 and Rp. 2,400,000. Income received successively Rp. 275,000, Rp. 220,000, Rp. 700,000, Rp. 900,000, Rp. 300,000 and Rp. 300,000. Efficiency analysis shows that Cucurbitacea farming is efficient to run, and the most efficient type of Cucurbitacea is melon. Based on the research results, it can be concluded that the Cucurbitaceae agricultural business has economic potential and is efficient to run, especially the melon type.
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Liu, Yafei, Huinan Xu, Huasen Wang e Shengjun Feng. "Research Progress in Leaf Related Molecular Breeding of Cucurbitaceae". Agronomy 12, n. 11 (21 novembre 2022): 2908. http://dx.doi.org/10.3390/agronomy12112908.

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Cucurbitaceae crops play an important role in agricultural production, and they are a primary source of vegetables and fruits for daily needs. The cultivation of cucurbit varieties with excellent agronomic characters has attracted much attention in recent years. As the main source energy organ of Cucurbitaceae, the development of leaves is closely related to yield and environmental response. In this paper, the main research achievements on leaf development of Cucurbitaceae plants were summarized, and the origin, genetic research, gene mapping, and effects on the agronomic and economic characters of the leaf shape and leaf color mutants of Cucurbitaceae were introduced. In addition, the effects of some hormones and environmental factors were reviewed. This work provides a reference point for molecular breeding of leaf development of Cucurbitaceae.
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Wang, Shuoshuo, Yuchen Meng, Fei Ding, Kuo Yang, Chuang Wang, Hengjia Zhang e Han Jin. "Comparative Analysis of TPR Gene Family in Cucurbitaceae and Expression Profiling under Abiotic Stress in Cucumis melo L." Horticulturae 10, n. 1 (15 gennaio 2024): 83. http://dx.doi.org/10.3390/horticulturae10010083.

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Tetratricopeptide repeat (TPR) proteins play numerous roles in plant growth and development by mediating protein–protein interactions in biological systems by binding to peptide ligands. Although genome-wide analyses of the TPR gene family in other species have been performed, its evolution and function in Cucurbitaceae remain unclear. In this study, 144 TPR genes from 11 genomes of eight Cucurbitaceae species with a heterogeneous distribution on the chromosomes were characterized. Based on the homology between Cucurbitaceae and Arabidopsis, the TPR genes were divided into four groups, and the evolutionary relationships of the Benincaceae and Cucurbitaceae tribes were also represented in a phylogenetic tree. Using the ‘DHL92′ genome as a reference, an integrated chromosome map was obtained containing 34 loci, 4 of which were common to the Cucurbitaceae. Cis-regulatory element analysis showed that these elements are essential for melon development and responses to light, phytohormones, and various stresses. CmTPR tissue- and development-specific expression analysis revealed differential expression patterns under normal growth conditions. Furthermore, the CmTPR genes responded to various abiotic stressors. Overall, this study offers insights into the evolutionary history of the TPR gene family in Cucurbitaceae and provides valuable information for elucidating the potential role of CmTPR genes during development and under different stresses in melon.
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Holstein, Norbert. "Monograph of Coccinia (Cucurbitaceae)". PhytoKeys 54 (3 luglio 2015): 1–166. http://dx.doi.org/10.3897/phytokeys.54.3285.

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de Wilde, W. J. J. O., e B. E. E. Duyfjes. "The genus Baijiania (Cucurbitaceae)". Blumea - Biodiversity, Evolution and Biogeography of Plants 48, n. 2 (11 luglio 2003): 279–84. http://dx.doi.org/10.3767/000651903x674973.

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Tesi sul tema "Cucurbitaceae"

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Ribeiro, Alessa Castro. "Avaliação de uso de Momordica charantia L. no tratamento de asma em modelo animal". Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/17/17144/tde-06012017-101031/.

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A asma é uma doença crônica das vias aéreas responsável por significativa morbidade e mortalidade mundial. Medicamentos anti-inflamatórios, tais como os corticosteróides, são algumas das opções de tratamento mais importantes, no entanto, elas podem causar efeitos secundários indesejáveis. Historicamente, as plantas foram uma fonte principal de moléculas com atividade biológica. O objetivo deste estudo foi avaliar o efeito do MC, um extrato vegetal brasileira com propriedades anti-inflamatórias, no tratamento da asma em um modelo animal. Métodos: Camundongos machos Balb/C, com idade de 5 a 6 semanas, foram sensibilizados com ovalbumina (OVA) por via intraperitoneal (IP) por duas vezes, com uma semana de intervalo, e desafiados diariamente com OVA intranasal durante três dias. Os animais foram tratados diariamente com a MCA (aquoso) MCHA (hidroalcóolico) na dose 500 mg/kg ip por três dias, durante os desafios. Os camundongos do grupo controle receberam solução salina nos mesmos dias. Cinco a oito animais por grupo foram utilizados. Vinte e quatro horas após o último desafio, os ratinhos foram ventilados com um respirador animal pequeno (FlexiVent®), e foram realizadas medições in vivo da hiperreactividade brônquica com concentrações crescentes de metacolina em aerossol (6,25, 12,5, 25 e 50 mg / ml). Os parâmetros avaliados e comparados foram: a resistência total (RRS), elastância total (ERS), resistência do tecido (G) e elastância tecidual (H). Após ventilação, foi colhido lavado broncoalveolar (LBA) para análise da contagem de células totais e diferenciais. Interleucinas inflamatórias (IL-4, IL-5, IL-10, IL- 13, IFN-?) foram analisadas no homogenato pulmonar além da dosagem sérica de IgE antiOVA. Os pulmões dos animais foram coletados para análise histológica (H&E). Resultados: O tratamento com extrato MCHA reduziu significativamente a hiperresponsividade brônquica através da mensuração das medidas RRS (p<0,001), ERS (p<0,05), G (p<0,05) and H (p<0,001), quando comparado com o grupo de animas asmáticos não tratados. Extratos de MCA e MCHA reduziram tambem significativamente células totais (p<0,05) e contagem de eosinófilos (p<0,05). MCHA reduziu a concentração de IFN-? (p<0,01) quando comparado aos animais asmáticos não tratados. MCA (p<0,001) mostrou uma significativa redução do número de células inflamatórias por área quando comparado ao grupo asmático não tratado. Conclusão: Os dois extratos (aquoso e hidroetanólico) das folhas da espécie Momordica charantia L., na dose de 500 mg/kg, foi eficaz no tratamento da asma em modelo animal induzido por ovalbumina tanto em medidas da mecânica pulmonar quando em marcadores inflamatórios e estudo histológico, sendo o extrato hidroetanólico potencialmente mais eficaz na dose estudada.
Asthma is a chronic disease of the airways responsible for significant morbidity and mortality worldwide. Anti-inflammatory medications, such as corticosteroids, are some of the most important treatment options, however they can cause undesirable side effects. Historically, plants have been a major source of molecules with biological activity. The objective of this study was to evaluate the effect of MC, a Brazilian herbal extract with anti-inflammatory properties, on asthma treatment in an animal model. Methods: Male Balb/c mice, 5 to 6 weeks, were sensitized twice with ovalbumin (OVA) intraperitoneally (ip), one week apart, and challenged daily with OVA intranasally for three days. Mice were treated daily with MCA (aqueous) MCHA (hydroethanolic) extract (500 mg/kg) ip for three days, during challenges. Control mice received saline on the same days. Five to eight mice were utilized per group. Twenty-four hours after the last challenge, mice were ventilated with a small-animal ventilator (FlexiVent®), and in vivo measurements of bronchial hyperresponsiveness were performed with increasing concentrations of methacholine aerosol (6.25, 12.5, 25 and 50 mg/ml). The following parameters were evaluated and compared: total resistance (RRS), total elastance (ERS),, tissue resistance (G) and tissue elastance (H). After ventilation, was collected bronchoalveolar lavage (BAL) for analysis of total and differential count inflammatory cells. Interleukins (IL-4, IL-5, IL-10, IL-13, IFN-?) were analyzed in lung homogenate. Morover serum anti-OVA IgE were dosage. The lungs of the animals were collected for histological analysis (H & E) Results: Treatment with MCHA extract significantly decreased airway hyperresponsiveness, measured by RRS (p<0,001), ERS (p<0,05), G (p<0,05) and H (p<0,001), when compared to OVA-challenged mice. MCA e MCHA extract also significantly reduced BAL total cell (p<0,05) and eosinophil counts (p<0,05). MCHA reduced IFN-? concentration (p<0,01) as compared to the untreated group asthmatic. MCA (p<0,001) showed a significant reduction in the number of inflammatory cells per unit area in the air compared to the asthmatic untreated group. Conclusion: The administration of MCA and MCHA from the leaves of Momordica charantia L. species, at a dose of 500 mg / kg was effective in the treatment of asthma in animal models induced by ovalbumin in both pulmonary mechanics measurements as inflammatory markers, and histological study, and potentially more effective MCHA extract the studied dose.
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Volz, Stefanie M. "Evolution of dioecy in the Cucurbitaceae genus Bryonia". Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-115827.

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Sebastian, Patrizia. "Phylogenetics and biogeography of two clades of Cucurbitaceae". Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-146298.

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Holstein, Norbert. "Evolution, biogeography, and monographic treatment of Coccinia (Cucurbitaceae)". Diss., Ludwig-Maximilians-Universität München, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-178656.

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Conceição, Túlio Carmo. "The genus Ceratosanthes Adans. (Cucurbitaceae Juss.) in Brazil". Master's thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/11581.

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Mestrado em Biologia Aplicada
O presente estudo teve como objetivo efetuar uma revisão taxonómica do gênero Ceratosanthes Adans. (Cucurbitaceae Juss.) no território brasileiro a fim de melhor definir as delimitações morfológicas assim como a distribuição geográfica e ampliar os estudos sobre a palinologia do grupo. Os espécimes estudados foram obtidos por meio de consultas às coleções de herbários nacionais e internacionais, além de expedições científicas ocorridas no período de 2010 e 2011. Todo o material estudado foi descrito e identificado por comparação com outras coleções ou espécimes tipo. Com base na revisão do gênero, são aqui apresentadas sete novas sinonímias, resultando em um total de cinco espécies para a flora brasileira. O estudo dos grãos de pólen indicou a forma dos grãos assim como dos muri e das columelas como elementos de valor taxonómico significativos. Apresenta-se neste trabalho pranchas ilustrativas, mapas de distribuição dos espécimes e eletromicrografias dos grãos de pólen além de uma chave analítica baseada nas características macro-morfológicas e uma outra apoiada nos estudos palinológicos.
This study aimed to review the genus Ceratosanthes Adans. (Cucurbitaceae Juss.) in the Brazilian territory in order to better define the morphological delimitations as well as the geographical distribution and expand the studies on the palynology of the genus. The specimens studied were obtained from collections held at national and international herbaria, and scientific expeditions that occurred between 2010 and 2011. All material studied was adequately described and identified by comparison with type specimens and other properly identified collections. Based on this review of the genus, seven new synonyms are presented, resulting in five species for the Brazilian flora. This study indicates pollen grain shape as well as muri and columellae as elements of significant taxonomic value. Furthermore, an analytical key based on macromorphological characteristics, another key based on palynological studies, illustrations, distribution maps of specimens and electron micrographs of the pollen grains are presented.
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Tran, Thao Hoang. "Producing carotenoid-rich powder from Gac fruit". View thesis, 2007. http://handle.uws.edu.au:8081/1959.7/19013.

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Thesis (M.Sc.(Hons.)) -- University of Western Sydney, 2007.
A thesis submitted in fulfilment of the requirements for the degree of Master of Science (Hons) to the University of Western Sydney, College of Health and Science, Centre for Plant and Food Science. Includes bibliography.
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Zhang, Baichen. "Dissection of phloem transport in cucurbitaceae by metabolomic analysis". Phd thesis, Universität Potsdam, 2005. http://opus.kobv.de/ubp/volltexte/2006/664/.

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This thesis aimed to investigate several fundamental and perplexing questions relating to the phloem loading and transport mechanisms of Cucurbita maxima, by combining metabolomic analysis with cell biological techniques. This putative symplastic loading species has long been used for experiments on phloem anatomy, phloem biochemistry, phloem transport physiology and phloem signalling. Symplastic loading species have been proposed to use a polymer trapping mechanism to accumulate RFO (raffinose family oligosaccharides) sugars to build up high osmotic pressure in minor veins which sustains a concentration gradient that drives mass flow. However, extensive evidence indicating a low sugar concentration in their phloem exudates is a long-known problem that conflicts with this hypothesis. Previous metabolomic analysis shows the concentration of many small molecules in phloem exudates is higher than that of leaf tissues, which indicates an active apoplastic loading step. Therefore, in the view of the phloem metabolome, a symplastic loading mechanism cannot explain how small molecules other than RFO sugars are loaded into phloem.

Most studies of phloem physiology using cucurbits have neglected the possible functions of vascular architecture in phloem transport. It is well known that there are two phloem systems in cucurbits with distinctly different anatomical features: central phloem and extrafascicular phloem. However, mistaken conclusions on sources of cucurbit phloem exudation from previous reports have hindered consideration of the idea that there may be important differences between these two phloem systems.

The major results are summarized as below:
1) O-linked glycans in C.maxima were structurally identified as beta-1,3 linked glucose polymers, and the composition of glycans in cucurbits was found to be species-specific. Inter-species grafting experiments proved that these glycans are phloem mobile and transported uni-directionally from scion to stock.
2) As indicated by stable isotopic labelling experiments, a considerable amount of carbon is incorporated into small metabolites in phloem exudates. However, the incorporation of carbon into RFO sugars is much faster than for other metabolites.
3) Both CO2 labelling experiments and comparative metabolomic analysis of phloem exudates and leaf tissues indicated that metabolic processes other than RFO sugar metabolism play an important role in cucurbit phloem physiology.
4) The underlying assumption that the central phloem of cucurbits continuously releases exudates after physical incision was proved wrong by rigorous experiments including direct observation by normal microscopy and combined multiple-microscopic methods. Errors in previous experimental confirmation of phloem exudation in cucurbits are critically discussed.
5) Extrafascicular phloem was proved to be functional, as indicated by phloem-mobile carboxyfluorescein tracer studies. Commissural sieve tubes interconnect phloem bundles into a complete super-symplastic network.
6) Extrafascicular phloem represents the main source of exudates following physical incision. The major transported metabolites by these extrafacicular phloem are non-sugar compounds including amino acids, O-glycans, amines.
7) Central phloem contains almost exclusively RFO sugars, the estimated amount of which is up to 1 to 2 molar. The major RFO sugar present in central phloem is stachyose.
8) Cucurbits utilize two structurally different phloem systems for transporting different group of metabolites (RFO sugars and non-RFO sugar compounds). This implies that cucurbits may use spatially separated loading mechanisms (apoplastic loading for extrafascicular phloem and symplastic loading for central phloem) for supply of nutrients to sinks.
9) Along the transport systems, RFO sugars were mainly distributed within central phloem tissues. There were only small amounts of RFO sugars present in xylem tissues (millimolar range) and trace amounts of RFO sugars in cortex and pith. The composition of small molecules in external central phloem is very different from that in internal central phloem.
10) Aggregated P-proteins were manually dissected from central phloem and analysed by both SDS-PAGE and mass spectrometry. Partial sequences of peptides were obtained by QTOF de novo sequencing from trypsin digests of three SDS-PAGE bands. None of these partial sequences shows significant homology to known cucurbit phloem proteins or other plant proteins. This proves that these central phloem proteins are a completely new group of proteins different from those in extrafascicular phloem. The extensively analysed P-proteins reported in literature to date are therefore now shown to arise from extrafascicular phloem and not central phloem, and therefore do not appear to be involved in the occlusion processes in central phloem.
Phloem transportiert ein ausgedehntes Spektrum an Molekülen zwischen Pflanzenorganen, um Wachstum und Entwicklung zu koordinieren. Folglich ist eine umfassende und unvoreingenommene Metabolom-Analyse notwendig, um unser Verständnis über den Transport von Stoffwechselprodukten sowie über Phloemtransport zu vertiefen. Phloemexsudate von Kürbispflanzen werden unter Verwendung der Metabolom-Analyse analysiert. Bei diesen Pflanzen wird angenommen, dass sie symplastische Beladungswege verwenden, um Photoassmilate als Ausgangsschritt des Phloemtransportes zu konzentrieren. Zwei neue Familien Callose-verwandter Substanzen, 1,3-Overknüpfte Glycane, sowie eine Reihe anderer kleinerer Metabolite werden in den Phloemexsudaten detektiert. Metabolom-Daten und physiologische Experimente widersprechen früher berichtetem Verständnis des Phloemexsudationsprozesses in Kürbispflanzen. Folglich bestätigt sich der Phloemexsudationsprozeß durch Kombination unterschiedlicher mikroskopischer Techniken. Kürbispflanzen besitzen zwei Phloemsysteme mit eindeutigen anatomischen Eigenschaften. Es zeigt sich, daß Phloemexsudate in Kürbissen hauptsächlich vom extrafaszikulären Phloem, nicht vom zentralen Phloem, stammen. In den letzten Jahrzehnten wurde gewöhnlich mißverstanden, daß Phloemexsudate vom zentralen Phloem stammen. Die eindeutigen metabolischen Profile der unterschiedlichen Phloemsysteme, die durch Metabolom-Analysen in der räumlichen Auflösung beobachtet werden, bestätigen die unterschiedlichen physiologischen Funktionen der zwei unterschiedlichen Phloemsysteme: das zentrale Phloem transportiert hauptsächlich Zucker, während das extrafaszikuläre Phloem ein ausgedehntes Spektrum von Metaboliten transportiert. Es kann auch ein unterschiedliches metabolisches Profil kleiner Moleküle zwischen internem und externem zentralem Phloem beobachtet werden. Von Strukturproteinen des zentralen Phloems wurden auch Proben genommen und mittels Massenspektrometrie analysiert. Diese Proteine erweisen sich als neuartige Proteine, die sich zu denen im extrafaszikulären Phloem unterscheiden. Dies bestätigt ferner den Funktionsunterschied der unterschiedlichen Phloemsysteme in Kürbispflanzen. Basierend auf diesen neuartigen Entdeckungen des Phloem-Metaboloms und dem vorhergehenden Wissen über den Phloemtransport in Kürbispflanzen, wird ein neues Modell vorgeschlagen, um den Mechanismus des Phloemtransports in der symplastischen Beladung zu verstehen.
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Abou, Choucha Fadi. "Determination Of The Gene Networks Controlling Sex Determination In Cucurbitaceae". Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS175.

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La molécule de l’éthylène (C2H4) est le régulateur principal du sexe chez les cucurbites. Essentiellement, l’éthylène est connu pour son rôle promoteur dans le développement des carpelles et un rôle inhibiteur des étamines dans les fleurs du melon. L’interaction entre les biosynthétique gènes de l’éthylène (CmACS7, CmACS11, et CmACO3) et le facteur de transcription CmWIP1 détermine différentes formes du sexe chez le melon. Le rôle de ces gènes est bien étudié chez le melon. Cependant, le mécanisme qui contrôle l’initiation et la coordination de formation des étamines et des carpelles dans la fleur reste ambigu. En reposant sur l’importance de l’éthylène dans l’expression du sexe chez le melon, j’ai focalisé sur l’identification des gènes impliqués dans la voie signalisation éthylène-sexe. Au cours de la thèse, le criblage des mutants altérés dans la réponse à l’exogène éthylène nous facilitait d’identifier des nouveaux gènes impliqués dans la détermination du sexe chez la famille de Cucurbitacée. Pendant ma thèse j’ai isolé plus de 10 mutants insensibles à l’éthylène de différentes populations du melon. Deux mutants ont été isolés de deux populations monoïques indépendantes. Ces deux mutants provoquent une transition partielle et complète au melon andromonoïque dans la génération M2, respectivement. Un de ces deux mutants a été identifié et caractérisé. Deux autres mutants gsn106 et vat233 ont été criblés de deux populations andromonoïque, provoquent une transition complète et partielle à androïque melon, respectivement. En utilisant le séquençage à haute débit et les analyses génétiques j’ai essayé de cloner et caractériser ces gènes mutants. Par ailleurs, des autres mutants insensibles à l’éthylène sont en cours d’être phénotypes pour le phénotype du sexe. L’isolation et caractérisation des nouveaux gènes impliqués dans le déterminisme du sexe nous aidera pour mettre en place un model clair explant comment le sexe est contrôlé chez les plantes
Ethylene (C2H4) is an important phytohormone in plants and the main sex regulator in the family Cucurbitaceae. As known, the ethylene promotes the carpel development and inhibits the stamens in the melon flower (Cucumis melo L.). The interplay of the biosynthesis genes (CmACS7, CmACS11, et CmACO3) and the transcription factor CmWIP1 generates different sexual forms in melon. The role of these genes in the sex expression is well studied. However, the mechanism that controls the initiation and coordination of stamen and carpel development in the flower remains ambiguous. Based on the importance of the ethylene in the sex determination, I aimed to isolate novel genes involved in the pathway ethylene-sex in the melon (Cucumis melo L.). For this purpose, I used the response to exogenous ethylene in the etiolated seedlings (known as the triple response phenotype) to isolate ethylene-insensitive mutants. During my thesis I isolated more than 10 ethylene-insensitive mutants from six EMS-mutagenised melon populations. Some of these mutants induced changes in the sex expression of the melon. . Two mutants were isolated from two independent monoecious populations (female and male flowers on the same plant) and induced a partial and a complete sexual transition to the andromonoecious melon in the second generation M2, respectively. One of them was cloned and characterized using Omics tools. Two other mutants (gsn106) and (vat233) screened from two independent andromonoecious melon (bisexual and male flowers on the same plant) populations, induced complete and partial sexual transitions into androecy (only male flowers), respectively. Using Next-Generation Sequencing (NGS) and the genetic analysis, we are trying to clone and characterise these mutants (gsn106) and (vat233). In the same way, we continue to observe others promising ethylene-insensitive mutants (vat306, vat175, and vat230) for the sex phenotype. The isolation and characterisation of novel genes involved in the sex determination will permit to provide a new and clear model explains of the sex determination mechanism in plants
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Tran, Thao Hoang. "Producing carotenoid-rich powder from Gac fruit". Thesis, View thesis, 2007. http://handle.uws.edu.au:8081/1959.7/19013.

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Gac (Momordica Cochinchinensis Spreng or Muricia Cochinchinensis Spreng) is an indigenous fruit of Vietnam, commonly used as a colourant in traditional dishes. Recent studies showed that this fruit had a high carotenoid content, especially lycopene and β-carotene. These carotenoids are currently in high demand as they are natural antioxidants to prevent and treat cancers. Over the last ten years some new products from Gac fruit have been found on the market but the cultivation and consumption of the fruit is still limited. Gac is harvested seasonally and the post harvest processing has not been well developed. To make the best use of the valuable substances in Gac, this project investigated some processing methods to make Gac powder and developed the product quality analyses, potentially applicable to local small-scale manufacture. In order to evaluate the efficiency of the Gac powder process and some of the most important qualities of the Gac powder products, the analytical methods to determine lycopene and β-carotene were developed and validated in this project. The new HPLC-based method included a liquid-liquid extraction, followed by a solid phase extraction before the analysis. Both newly- developed HPLC and SP methods exhibited a high extraction yield, good recovery and reproducibility. Compared with the HPLC, the SP method gives higher mean values and standard deviations, but it is quicker, simpler, less expensive and still reliable for industrial applications due to the use of less toxic solvents. The production of powder from Gac fruit included two main stages: seed removal and aril dehydration. Derived from the same drying operation, the enzymatic-treated Gac powder had a lower carotenoid content compared to the heat-treated powder. The Gac powder produced by the freeze-drying method had the highest carotenoid level and brightest colour. Finally the orange-red Gac powder with high carotenoid content was added to some foods as a colorant and nutrient supplement to illustrate its applications. The colours of foods were significantly improved and the carotenoid contents were increased after processing, indicating a potential market for the Gac powder.
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Vinhas, Ana Sofia de Sousa. "Uma revisão das atividades biológicas de sementes de Citrullus Lanatus (Cucurbitaceae)". Bachelor's thesis, [s.n.], 2018. http://hdl.handle.net/10284/7364.

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Trabalho Complementar apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de licenciada em Ciências da Nutrição
O presente trabalho apresenta uma revisão da literatura que evidencia a importância nutricional, fitoquímica e propriedades biológicas das sementes de melancia. Neste trabalho de revisão bibliográfica foram descritos os principais nutrientes, compostos antioxidantes das sementes, tais como ácidos fenólicos, flavonoides, alcaloides, bem como a sua associação às atividades biológicas benéficas que os mesmos poderão exercer no metabolismo humano. Foi possível concluir que as sementes de melancia são fontes de proteínas, ácidos gordos essenciais, vitaminas e minerais. As propriedades funcionais e medicinais são atribuídas à presença de compostos bioativos como ácidos fenólicos, flavonoides, carotenoides e alcaloides, que são excelentes fontes de antioxidantes naturais. As sementes desta fruta, apesar de terem valor nutricional e energético, são geralmente descartadas como subproduto alimentar. Recentemente, o uso potencial de subprodutos alimentares no desenvolvimento de novos ingredientes saudáveis para o enriquecimento de alimentos tem sido uma forma de reduzir a poluição e garantir a sustentabilidade ambiental. Conclui-se assim que, pelo seu teor nutricional, composição química, propriedades biológicas e farmacológicas descritas, estas podem ser adicionadas aos alimentos para os enriquecer, utilizadas como suplemento alimentar e até incorporadas em fármacos, bem como utilizadas na cosmética.
This study presents a literature review which shows the nutritional, phytochemical and biological properties of watermelon seeds. In this research, the main nutrients, antioxidant compounds of watermelon seeds, such as phenolic acids, flavonoids and alcaloids, as well as their association with beneficial biological activities that they may exert in human metabolism. It was possible to conclude that watermelon seeds are a source of proteins, essential fatty acids, vitamins and minerals. The functional and medicinal properties are attributed to the presence of bioactive compounds such as phenolic acids, flavonoids, carotenoids and alkaloids, which are excellent sources of natural antioxidants. The seeds of this fruit, although having a nutritional and energetic value, are usually discarded as a food by-product. Recently, the potential use of food by-products in developing new healthy ingredients for food enrichment has been a way of reducing pollution and ensuring environmental sustainability. In conclusion, due to the nutritional and chemical richness of watermelon seeds and taking into account their biological and pharmacological properties, they can be added to foods to enrich them. They can also be used as food supplements and even incorporated into drugs and cosmetics.
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Libri sul tema "Cucurbitaceae"

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Grumet, Rebecca, Nurit Katzir e Jordi Garcia-Mas, a cura di. Genetics and Genomics of Cucurbitaceae. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49332-9.

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W, Robinson Richard. Cucurbits. Wallingford: CAB International, 1996.

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Lagos-Witte, Sonia. Botanische Studien an der Chayote (Sechium edule (Jacq.) SW.), eine Nutzpflanze der Tropen, unter besonderer Berücksichtigung ihres Wurzelsystems und der Fruchtentwicklung. Bonn: Institut für Landwirtschaftliche Botanik der Rheinischen Friedrich-Wilhelms-Universität Bonn, 1988.

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Eucarpia Meeting on Cucurbit Genetics and Breeding (7th 2000 Maʹale Ha Hamisha, Israel). Cucurbitaceae 2000: Proceedings of the 7th Eucarpia Meeting on Cucurbit Genetics & Breeding : Maʹale Ha Hamisha, Israel, March 19-23, 2000. A cura di Katzir Nurit, Paris H. S, Eucarpia e International Society for Horticultural Science. Working Group on Curcurbitaceae. Leuven, Belgium: ISHS, 2000.

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International Symposium on Cucurbits (2nd 2001 Tsukuba Kenkyū Gakuen Toshi, Japan). Proceedings of the IInd International Symposium on Cucurbits: Tsukuba, Japan, 28 September-1 October, 2001. A cura di Nishimura Shigeo e International Society for Horticultural Science. Working Group on Cucurbitaceae. Leuben: ISHS, 2001.

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Fuller, F. Jay. Violaceae of Butte County, California. Chico, Calif: California State University, Dept. of Biological Science, 1987.

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Ezura, Hiroshi, Tohru Ariizumi, Jordi Garcia-Mas e Jocelyn Rose, a cura di. Functional Genomics and Biotechnology in Solanaceae and Cucurbitaceae Crops. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-48535-4.

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8

Bruton, B. D. Carbohydrate partitioning, cultural practices, and vine decline diseases of cucurbits. Washington, D.C.?: U.S. Dept. of Agriculture?, 1998.

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9

1941-, Zitter T. A., Hopkins Donald L e Thomas Claude E, a cura di. Compendium of cucurbit diseases. St. Paul, Minn: APS Press, 1996.

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Mansour, N. M. Cucurbit seed production in the Pacific Northwest. [Corvallis, Or.?]: Oregon State University Extension Service, Washington State University Cooperative Extension, University of Idaho Cooperative Extension Service, U.S. Dept. of Agriculture, [1985], 1985.

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Capitoli di libri sul tema "Cucurbitaceae"

1

Xu, Zhenghao, e Le Chang. "Cucurbitaceae". In Identification and Control of Common Weeds: Volume 3, 417–32. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5403-7_18.

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Hegnauer, Robert. "Cucurbitaceae". In Chemotaxonomie der Pflanzen, 363–75. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-9283-4_73.

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Eggli, U. "Cucurbitaceae". In Illustrated Handbook of Succulent Plants: Dicotyledons, 73–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-56316-4_24.

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Raj, Samuel Paul, Pravin Raj Solomon e Baskar Thangaraj. "Cucurbitaceae". In Biodiesel from Flowering Plants, 179–94. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-4775-8_15.

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Schaefer, H., e S. S. Renner. "Cucurbitaceae". In Flowering Plants. Eudicots, 112–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14397-7_10.

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Newton, L. E., e U. Eggli. "Cucurbitaceae". In Dicotyledons: Rosids, 1–10. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-85239-9_26-1.

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Smith, Nigel. "Cucurbitaceae". In Amazon Fruits: An Ethnobotanical Journey, 425–29. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-12803-5_21.

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Newton, L. E., e U. Eggli. "Cucurbitaceae". In Dicotyledons: Rosids, 163–71. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-93492-7_26.

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Newton, L. E. "Citrullus CUCURBITACEAE". In Dicotyledons: Rosids, 1–3. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-85239-9_33-1.

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Newton, L. E., e U. Eggli. "Anisosperma CUCURBITACEAE". In Dicotyledons: Rosids, 1–2. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-85239-9_28-1.

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Atti di convegni sul tema "Cucurbitaceae"

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"Genes determining dwarfism in Cucurbitaceae". In SYSTEMS BIOLOGY AND BIOINFORMATICS (SBB-2020). Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences., 2020. http://dx.doi.org/10.18699/sbb-2020-35.

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VIEIRA, L. E. B., I. B. SILVA e K. P. RANDAU. "ESPÉCIES DA FAMÍLIA CUCURBITACEAE EM PESQUISA ANTIVIRAL -HIV/AIDS". In ANAIS DO 5º ENCONTRO BRASILEIRO PARA INOVAçãO TERAPêUTICA. Galoa, 2017. http://dx.doi.org/10.17648/ebit-2017-85742.

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Hashifah, Fathimah Nurfithri, Andi Gita Maulidyah Indraswari Suhri e RC Hidayat Soesilohadi. "Visiting frequency of bees in Cucumis sativus (Cucurbitaceae) plants". In THE 6TH INTERNATIONAL CONFERENCE ON BIOLOGICAL SCIENCE ICBS 2019: “Biodiversity as a Cornerstone for Embracing Future Humanity”. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0016375.

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Achu, M. B., E. Fokou, C. Tchiégang, M. Fotso e M. F. Tchouanguep. "Chemical Characteristics and Fatty acid Composition of Cucurbitaceae Oils fron Cameroon". In 13th World Congress of Food Science & Technology. Les Ulis, France: EDP Sciences, 2006. http://dx.doi.org/10.1051/iufost:20060026.

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Mester, Mihaela Georgina. "PHENOLIC PROFILE AND ANTIOXIDANT ACTIVITY OF SOME SPECIES OF THE CUCURBITACEAE FAMILY". In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/6.1/s25.109.

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Shvets, D. Yu, e B. R. Kuluev. "In vivo callus formation on the surface of tubers of Manchu tubergourd (Thladiantha dubia, Cucurbitaceae)". In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.228.

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For the first time, shingles of callus-like structures were found in Thladiantha dubia. Of these formations, shoots and roots are intensively regenerated in vivo. Such a mechanism underlies the active vegetative propagation and wide distribution of this invasive species.
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Arbizu, Carlos I., Raúl H. Blas e Roberto Ugás. "Genetic Diversity and Population Structure Assessed by SSR in a Peruvian Germplasm Collection of Loche Squash (Cucurbita moschata, Cucurbitaceae)". In IECD 2022. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/iecd2022-12420.

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Konrade, Daiga, e Kriss Spalvins. "Extraction of bioactives from pumpkin by-products and determination of their antioxidant activity". In Research for Rural Development 2022 : annual 28th international scientific conference proceedings. Latvia University of Life Sciences and Technologies, 2022. http://dx.doi.org/10.22616/rrd.28.2022.016.

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Agro-industrial and food processing from pumpkins (Cucurbitaceae) produces a large number of by-products: bark, pomace, seeds still rich in bioactive compounds, especially carotenoids and green pigments (proto chlorophyll (a and b) and proto pheophytin (a and b)), which exhibit a broad spectrum of health-promoting effects and can be used as ingredients in functional food and cosmetics. For extraction of bioactive compounds from dried pumpkin by-products different methods were used: supercritical CO2, Soxhlet extraction with n- hexane, ethanol. Vegetable oils (rapeseed, coconut, grapeseed and olive oil) were used as green solvent alternatives to conventional organic solvents for carotenoid extraction. Detection and analyses of chlorophylls and carotenoids was done with hexane/acetone, cyclohexane, ethanol as solvents. The aim of this study was to use pumpkin by-products for extraction of high-value bioactive compounds with different methods, to determine antioxidant´s content and profile – carotenoids (ß-carotene, lutein, lycopene, zeaxanthin), pigments (chlorophylls a, chlorophylls b) with different solvents and to find out what solvent can be used for detection of pigments and carotenoids; to determine antiradical scavenging activity of biologically active compounds in extracts from pumpkin by-products (peel and hulled seeds).
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Keerthi Prasad, M. A., N. Shobha Rani, M. A. Sangamesha e K. V. Vinay. "Identification and Detection of Leaf Miner, Pests Infestation in Cucurbitaceae Family in Real Time Infield Scenarios using YOLOv5s Object Detection Model". In 2024 11th International Conference on Computing for Sustainable Global Development (INDIACom). IEEE, 2024. http://dx.doi.org/10.23919/indiacom61295.2024.10498728.

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Doltu, Mădălina, Dorin Sora, Marian Bogoescu e Veronica Tănasă. "IDENTIFICATION OF SOME CUCURBITACEOUS ROOTSTOCKS FOR VEGETABLE CROPS IN ROMANIA". In GEOLINKS International Conference. SAIMA Consult Ltd, 2020. http://dx.doi.org/10.32008/geolinks2020/b2/v2/05.

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This study aimed to identification of some rootstocks for cucurbitaceous vegetables and their influence on cultures. These vegetables (cucumber, watermelon, melon) are very popular crops in Romania. Vegetable crops are very sensitive to climatic vagaries, so fluctuation in climatic parameters at any phase of growth can affect the yield. Grafting on Cucurbitaceae is a method which has improved and spread quickly during the past years, a similar approach to crop rotation, a practice meant to increase productivity, resistance or tolerance to soil diseases and pests, as well as to abiotic factors and at increasing fruit quality. The research was conducted at the Horting Institute, Bucharest, Romania. Several aspects are taken into account in the use of rootstocks: environmental adaptability, quality fruit, resistance/tolerance for soil diseases and pests, drought, floods, soil salinization, heavy metal content, organic pollutants. Some resistant rootstocks have been identified worldwide (PS1313, RS841, bottle-gourd, NUN-9075, Argentario, PI296341 and others). Several rootstocks are very used in Romania for conventional and ecological crops (UG 29A, Shintoza, Emphasis, Cobalt and others). Following the studies undertaken on research trials in the greenhouses, many rootstock genotypes were selected and tested in the Horting Institute and some results are presented in this paper.
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Rapporti di organizzazioni sul tema "Cucurbitaceae"

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Sherman, Amir, Rebecca Grumet, Ron Ophir, Nurit Katzir e Yiqun Weng. Whole genome approach for genetic analysis in cucumber: Fruit size as a test case. United States Department of Agriculture, dicembre 2013. http://dx.doi.org/10.32747/2013.7594399.bard.

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Abstract (sommario):
The Cucurbitaceae family includes a broad array of economically and nutritionally important crop species that are consumed as vegetables, staple starches and desserts. Fruit of these species, and types within species, exhibit extensive diversity as evidenced by variation in size, shape, color, flavor, and others. Fruit size and shape are critical quality determinants that delineate uses and market classes and are key traits under selection in breeding programs. However, the underlying genetic bases for variation in fruit size remain to be determined. A few species the Cucurbitaceae family were sequenced during the time of this project (cucumber was already sequenced when the project started watermelon and melon sequence became available during the project) but functional genomic tools are still missing. This research program had three major goals: 1. Develop whole genome cucumber and melon SNP arrays. 2. Develop and characterize cucumber populations segregating for fruit size. 3. Combine genomic tools, segregating populations, and phenotypic characterization to identify loci associated with fruit size. As suggested by the reviewers the work concentrated mostly in cucumber and not both in cucumber and melon. In order to develop a SNP (single nucleotide polymorphism) array for cucumber, available and newly generated sequence from two cucumber cultivars with extreme differences in shape and size, pickling GY14 and Chinese long 9930, were analyzed for variation (SNPs). A large set of high quality SNPs was discovered between the two parents of the RILs population (GY14 and 9930) and used to design a custom SNP array with 35000 SNPs using Agilent technology. The array was validated using 9930, Gy14 and F1 progeny of the two parents. Several mapping populations were developed for linkage mapping of quantitative trait loci (QTL) for fruit size These includes 145 F3 families and 150 recombinant inbred line (RILs F7 or F8 (Gy14 X 9930) and third population contained 450 F2 plants from a cross between Gy14 and a wild plant from India. The main population that was used in this study is the RILs population of Gy14 X 9930. Phenotypic and morphological analyses of 9930, Gy14, and their segregating F2 and RIL progeny indicated that several, likely independent, factors influence cucumber fruit size and shape, including factors that act both pre-anthesis and post-pollination. These include: amount, rate, duration, and plane of cell division pre- and post-anthesis and orientation of cell expansion. Analysis of F2 and RIL progeny indicated that factors influencing fruit length were largely determined pre-anthesis, while fruit diameter was more strongly influenced by environment and growth factors post-anthesis. These results suggest involvement of multiple genetically segregating factors expected to map independently onto the cucumber genome. Using the SNP array and the phenotypic data two major QTLs for fruit size of cucumber were mapped in very high accuracy (around 300 Kb) with large set of markers that should facilitate identification and cloning of major genes that contribute to fruit size in cucumber. In addition, a highly accurate haplotype map of all RILS was created to allow fine mapping of other traits segregating in this population. A detailed cucumber genetic map with 6000 markers was also established (currently the most detailed genetic map of cucumber). The integration of genetics physiology and genomic approaches in this project yielded new major infrastructure tools that can be used for understanding fruit size and many other traits of importance in cucumber. The SNP array and genetic population with an ultra-fine map can be used for future breeding efforts, high resolution mapping and cloning of traits of interest that segregate in this population. The genetic map that was developed can be used for other breeding efforts in other populations. The study of fruit development that was done during this project will be important in dissecting function of genes that that contribute to the fruit size QTLs. The SNP array can be used as tool for mapping different traits in cucumber. The development of the tools and knowledge will thus promote genetic improvement of cucumber and related cucurbits.
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Gur, Amit, Edward Buckler, Joseph Burger, Yaakov Tadmor e Iftach Klapp. Characterization of genetic variation and yield heterosis in Cucumis melo. United States Department of Agriculture, gennaio 2016. http://dx.doi.org/10.32747/2016.7600047.bard.

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Project objectives: 1) Characterization of variation for yield heterosis in melon using Half-Diallele (HDA) design. 2) Development and implementation of image-based yield phenotyping in melon. 3) Characterization of genetic, epigenetic and transcriptional variation across 25 founder lines and selected hybrids. The epigentic part of this objective was modified during the course of the project: instead of characterization of chromatin structure in a single melon line through genome-wide mapping of nucleosomes using MNase-seq approach, we took advantage of rapid advancements in single-molecule sequencing and shifted the focus to Nanoporelong-read sequencing of all 25 founder lines. This analysis provides invaluable information on genome-wide structural variation across our diversity 4) Integrated analyses and development of prediction models Agricultural heterosis relates to hybrids that outperform their inbred parents for yield. First generation (F1) hybrids are produced in many crop species and it is estimated that heterosis increases yield by 15-30% globally. Melon (Cucumismelo) is an economically important species of The Cucurbitaceae family and is among the most important fleshy fruits for fresh consumption Worldwide. The major goal of this project was to explore the patterns and magnitude of yield heterosis in melon and link it to whole genome sequence variation. A core subset of 25 diverse lines was selected from the Newe-Yaar melon diversity panel for whole-genome re-sequencing (WGS) and test-crosses, to produce structured half-diallele design of 300 F1 hybrids (MelHDA25). Yield variation was measured in replicated yield trials at the whole-plant and at the rootstock levels (through a common-scion grafted experiments), across the F1s and parental lines. As part of this project we also developed an algorithmic pipeline for detection and yield estimation of melons from aerial-images, towards future implementation of such high throughput, cost-effective method for remote yield evaluation in open-field melons. We found extensive, highly heritable root-derived yield variation across the diallele population that was characterized by prominent best-parent heterosis (BPH), where hybrids rootstocks outperformed their parents by 38% and 56 % under optimal irrigation and drought- stress, respectively. Through integration of the genotypic data (~4,000,000 SNPs) and yield analyses we show that root-derived hybrids yield is independent of parental genetic distance. However, we mapped novel root-derived yield QTLs through genome-wide association (GWA) analysis and a multi-QTLs model explained more than 45% of the hybrids yield variation, providing a potential route for marker-assisted hybrid rootstock breeding. Four selected hybrid rootstocks are further studied under multiple scion varieties and their validated positive effect on yield performance is now leading to ongoing evaluation of their commercial potential. On the genomic level, this project resulted in 3 layers of data: 1) whole-genome short-read Illumina sequencing (30X) of the 25 founder lines provided us with 25 genome alignments and high-density melon HapMap that is already shown to be an effective resource for QTL annotation and candidate gene analysis in melon. 2) fast advancements in long-read single-molecule sequencing allowed us to shift focus towards this technology and generate ~50X Nanoporesequencing of the 25 founders which in combination with the short-read data now enable de novo assembly of the 25 genomes that will soon lead to construction of the first melon pan-genome. 3) Transcriptomic (3' RNA-Seq) analysis of several selected hybrids and their parents provide preliminary information on differentially expressed genes that can be further used to explain the root-derived yield variation. Taken together, this project expanded our view on yield heterosis in melon with novel specific insights on root-derived yield heterosis. To our knowledge, thus far this is the largest systematic genetic analysis of rootstock effects on yield heterosis in cucurbits or any other crop plant, and our results are now translated into potential breeding applications. The genomic resources that were developed as part of this project are putting melon in the forefront of genomic research and will continue to be useful tool for the cucurbits community in years to come.
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