Relevant bibliographies by topics / Nodulation

Academic literature on the topic 'Nodulation'

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Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Nodulation"

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van Spronsen, Paulina C., Teun Tak, Anita M. M. Rood, Anton A. N. van Brussel, Jan W. Kijne, and Kees J. M. Boot. "Salicylic Acid Inhibits Indeterminate-Type Nodulation But Not Determinate-Type Nodulation." Molecular Plant-Microbe Interactions® 16, no. 1 (January 2003): 83–91. http://dx.doi.org/10.1094/mpmi.2003.16.1.83.

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LCOs (lipochitin oligosaccharides, Nod factors) produced by the rhizobial symbiote of Vicia sativa subsp. nigra (vetch, an indeterminate-type nodulating plant) are mitogenic when carrying an 18:4 acyl chain but not when carrying an 18:1 acyl chain. This suggests that the 18:4 acyl chain specifically contributes to signaling in indeterminate-type nodulation. In a working hypothesis, we speculated that the 18:4 acyl chain is involved in oxylipin signaling comparable to, for example, signaling by derivatives of the 18:3 fatty acid linolenic acid (the octadecanoid pathway). Because salicylic acid (SA) is known to interfere with oxylipin signaling, we tested whether nodulation of vetch could be affected by addition of 10−4 M SA. This concentration completely blocked nodulation of vetch by Rhizobium leguminosarum bv. viciae and inhibited the mitogenic effect of 18:4 LCOs but did not affect LCO-induced root-hair deformation. SA did not act systemically, and only biologically active SA derivatives were capable of inhibiting nodule formation. SA also inhibited R. leguminosarum bv. viciae association with vetch roots. In contrast, addition of SA to Lotus japonicus (a determinate-type nodulating plant responding to 18:1 LCOs) did not inhibit nodulation by Mesorhizobium loti. Other indeterminate-type nodulating plants showed the same inhibiting response toward SA, whereas SA did not inhibit the nodulation of other determinate-type nodulating plants. SA may be a useful tool for studying fundamental differences between signal transduction pathways of indeterminate- and determinate-type nodulating plants.
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Wu, Zhihua, Hong Liu, Wen Huang, Lisha Yi, Erdai Qin, Tiange Yang, Jing Wang, and Rui Qin. "Genome-Wide Identification, Characterization, and Regulation of RWP-RK Gene Family in the Nitrogen-Fixing Clade." Plants 9, no. 9 (September 11, 2020): 1178. http://dx.doi.org/10.3390/plants9091178.

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RWP-RK is a plant-specific family of transcription factors, involved in nitrate response, gametogenesis, and nodulation. However, genome-wide characterization, phylogeny, and the regulation of RWP-RK genes in the nodulating and non-nodulating plant species of nitrogen-fixing clade (NFC) are widely unknown. Therefore, we identified a total of 292 RWP-RKs, including 278 RWP-RKs from 25 NFC species and 14 RWP-RKs from the outgroup, Arabidopsis thaliana. We classified the 292 RWP-RKs in two subfamilies: the NIN-like proteins (NLPs) and the RWP-RK domain proteins (RKDs). The transcriptome and phylogenetic analysis of RWP-RKs suggested that, compared to RKD genes, the NLP genes were just upregulated in nitrate response and nodulation. Moreover, nodule-specific NLP genes of some nodulating NFC species may have a common ancestor (OG0002084) with AtNLP genes in A. thaliana. Further, co-expression networks of A.thaliana under N-starvation and N-supplementation conditions revealed that there is a higher correlation between expression of AtNLP genes and symbiotic genes during N-starvation. In P. vulgaris, we confirmed that N-starvation stimulated nodulation by regulating expression of PvNLP2, closely related to AtNLP6 and AtNLP7 with another common origin (OG0004041). Taken together, we concluded that different origins of the NLP genes involved in both N-starvation response and specific expression of nodulation would contribute to the evolution of nodulation in NFC plant species. Our results shed light on the phylogenetic relationships of NLP genes and their differential regulation in nitrate response of A. thaliana and nodulation of NFC.
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Zhao, Jingya, Yi Meng, Chun Li, and Jun Tie. "The effect of nodulation on the distribution of concentration and current density during copper electrolytic refining." Journal of Physics: Conference Series 2285, no. 1 (June 1, 2022): 012015. http://dx.doi.org/10.1088/1742-6596/2285/1/012015.

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Abstract During the industrial copper electrolytic refining process, the suspended particles in the electrolyte are adsorbed on the surface of the cathode and form nodulations, leading to the disturbance of the normal state in the electrolyte. When nodulations grow and then contact with the anode, short circuits occurs. It reduce current efficiency and product quality. In this paper, the concentration and current density changes in the nodulation surface and the anode surface is proposed. The current density on the nodulation is the largest and the concentration is the smallest.
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Bano, Asghari, and James E. Harper. "Plant growth regulators and phloem exudates modulate root nodulation of soybean." Functional Plant Biology 29, no. 11 (2002): 1299. http://dx.doi.org/10.1071/fp02031.

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A time-course study was conducted on the effect of synthetic ABA and phloem exudate on root nodulation, nitrogenase activity, and dry matter content of pouch-grown soybean [Glycine max (L.) Merr.]. A hypernodulating mutant (NOD1-3) derived from the cultivar Williams was evaluated. The normally-nodulating cultivar Williams 82 served as the control. All phases of nodulation (nodule initiation, development and function) were inhibited by 1–50 μM synthetic ABA treatment of roots of pouch-grown soybean. The ABA effect was more pronounced for the treatment made 24 h prior to inoculation. The magnitude of inhibition of nodulation by ABA and by phloem exudate from inoculated Williams 82 was decreased when application was delayed to 48 h post-inoculation. Synthetic indoleacetic acid and benzyladenine (1 and 5 μM) also inhibited the number of nodules per plant, and the magnitude of inhibition was greater in the normally-nodulating Williams 82 cultivar than in the NOD1-3 hypernodulating mutant. Changes in endogenous free ABA in cotyledons, leaves, and xylem sap of seedlings were monitored at 24-h intervals after inoculation in both lines, and appeared to respond to inoculation. Addition of crude phloem exudate from Williams 82 or hypernodulating NOD1-3 was inhibitory to root nodulation of NOD1-3 — this effect was concentration dependent. Partially-purified (acidic aqueous fraction) phloem exudate from Williams 82 suppressed nodulation in NOD1-3 by 54% (averaged over a 7-d time-course), while partially-purified phloem exudate (acidic aqueous fraction) from NOD1-3 was much less inhibitory (23%). ABA levels in the phloem fractions applied were nearly identical (15.6 vs 16.0 ng mL–1), which indicates that ABA was not directly affecting nodulation control. Partially-purified extract (acidic aqueous fraction) from leaves of nodulated NOD1-3 was much less inhibitory to nodulation of NOD1-3 seedlings than was the comparable fraction from Williams 82. Although free ABA applied exogenously was capable of altering nodulation, it does not appear that endogenous ABA levels directly account for the autoregulatory control of nodulation in soybean. This implies that there may be factor(s) moving in the phloem other than ABA that possibly impact expression of root nodulation. Alternatively, it may be that plant development is responsive to interactions among plant growth regulators mediated by subtle changes in individual hormone concentrations. The possibility remains that normally-nodulating and hypernodulating lines have differential sensitivity to ABA, and that this explains altered nodulation control at similar levels of endogenous ABA.
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Doyle, Jeff J. "Phylogenetic Perspectives on the Origins of Nodulation." Molecular Plant-Microbe Interactions® 24, no. 11 (November 2011): 1289–95. http://dx.doi.org/10.1094/mpmi-05-11-0114.

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Recent refinements to the phylogeny of rosid angiosperms support the conclusion that nodulation has evolved several times in the so-called N2-fixing clade (NFC), and provide dates for these origins. The hypothesized predisposition that enabled the evolution of nodulation occurred approximately 100 million years ago (MYA), was retained in the various lineages that radiated rapidly shortly thereafter, and was functional in its non-nodulation role for at least an additional 30 million years in each nodulating lineage. Legumes radiated rapidly shortly after their origin approximately 60 MYA, and nodulation most likely evolved several times during this radiation. The major lineages of papilionoid legumes diverged close to the time of origin of nodulation, accounting for the diversity of nodule biology in the group. Nodulation symbioses exemplify the concept of “deep homology,” sharing various homologous components across nonhomologous origins of nodulation, largely due to recruitment from existing functions, notably the older arbuscular mycorrhizal symbiosis. Although polyploidy may have played a role in the origin of papilionoid legume nodules, it did not do so in other legumes, nor did the prerosid whole-genome triplication lead directly to the predisposition of nodulation.
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Ladha, J. K., Minviluz Garcia, R. P. Pareek, and G. Rarivoson. "Relative contributions to nitrogenase (acetylene reducing) activity of stem and root nodules in Sesbania rostrata." Canadian Journal of Microbiology 38, no. 6 (June 1, 1992): 577–83. http://dx.doi.org/10.1139/m92-095.

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Six experiments, two each in the phytotron, greenhouse, and field, were conducted to assess the contribution of nitrogenase activity (acetylene reduction) by stem nodules in the presence and absence of root nodules of Sesbania rostrata (Brem & Oberm). In a greenhouse experiment, the effect of detaching already formed aerial stem nodules on the restoration of root nodules and nitrogenase activity was studied. The field experiment compared nodulation and acetylene-reduction activity by dual-nodulating S. rostrata and root-nodulating Sesbania cannabina. Acetylene-reduction activity expressed per gram of nodule dry weight was higher for stem nodules than for root nodules. Root nodule dry weight and acetylene-reduction activity failed to increase after stem inoculation, but root nodule dry weight and acetylene-reduction activity increased several fold within 15 days of detachment of aerial stem nodules. Stem nodulation, which occurred without inoculation under lowland field condition, suppressed root nodulation, thus accounting for more than 75% of total nitrogenase activity. Sesbania rostrata showed higher acetylene-reduction activity than S. cannabina. In dual-nodulating plants, root and stem nodules appeared to strike a balance in competition for energy, which may be controlled by stem nodulation. Key words: Sesbania rostrata, Azorhizobium caulinodans, stem nodule, root nodule, acetylene-reducing activity.
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Liu, Jieyu, and Ton Bisseling. "Evolution of NIN and NIN-like Genes in Relation to Nodule Symbiosis." Genes 11, no. 7 (July 11, 2020): 777. http://dx.doi.org/10.3390/genes11070777.

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Legumes and actinorhizal plants are capable of forming root nodules symbiosis with rhizobia and Frankia bacteria. All these nodulating species belong to the nitrogen fixation clade. Most likely, nodulation evolved once in the last common ancestor of this clade. NIN (NODULE INCEPTION) is a transcription factor that is essential for nodulation in all studied species. Therefore, it seems probable that it was recruited at the start when nodulation evolved. NIN is the founding member of the NIN-like protein (NLP) family. It arose by duplication, and this occurred before nodulation evolved. Therefore, several plant species outside the nitrogen fixation clade have NLP(s), which is orthologous to NIN. In this review, we discuss how NIN has diverged from the ancestral NLP, what minimal changes would have been essential for it to become a key transcription controlling nodulation, and which adaptations might have evolved later.
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Barran, L. R., E. S. P. Bromfield, and D. C. W. Brown. "Identification and cloning of the bacterial nodulation specificity gene in the Sinorhizobium meliloti – Medicago laciniata symbiosis." Canadian Journal of Microbiology 48, no. 9 (September 1, 2002): 765–71. http://dx.doi.org/10.1139/w02-072.

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Medicago laciniata (cut-leaf medic) is an annual medic that is highly nodulation specific, nodulating only with a restricted range of Sinorhizobium meliloti, e.g., strain 102L4, but not with most strains that nodulate Medicago sativa (alfalfa), e.g., strains RCR2011 and Rm41. Our aim was to identify and clone the S. meliloti 102L4 gene implicated in the specific nodulation of M. laciniata and to characterize the adjacent nodulation (nod) region. An 11-kb EcoRI DNA fragment from S. meliloti 102L4 was shown to complement strain RCR2011 for nodulation of M. laciniata. Nucleotide sequencing revealed that this fragment contained nodABCIJ genes whose overall arrangement was similar to those found in strains RCR2011 and Rm41, which do not nodulate M. laciniata. Data for Tn5 mutagenesis of the nodABCIJ region of strain 102L4 suggested that the nodC gene was involved in the specific nodulation of M. laciniata. Tn5 insertions in the nodIJ genes gave mutants with nodulation delay phenotypes on both M. laciniata and M. sativa. Only subclones of the 11-kb DNA fragment containing a functional nodC gene from strain 102L4 were able to complement strain RCR2011 for nodulation of M. laciniata. The practical implications of these findings are discussed in the context of the development of a specific M. sativa – S. meliloti combination that excludes competition for nodulation by bacterial competitors resident in soil.Key words: Sinorhizobium meliloti, Medicago laciniata, nodulation specificity,nod gene, nucleotide sequence.
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Asamizu, Erika, Yasukazu Nakamura, Shusei Sato, and Satoshi Tabata. "Comparison of the Transcript Profiles from the Root and the Nodulating Root of the Model Legume Lotus japonicus by Serial Analysis of Gene Expression." Molecular Plant-Microbe Interactions® 18, no. 5 (May 2005): 487–98. http://dx.doi.org/10.1094/mpmi-18-0487.

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We performed a comprehensive transcript analysis on the early stage of root nodulation in the model legume Lotus japonicus by serial analysis of gene expression (SAGE). SAGE libraries were made from uninfected roots and nodulating roots abundant in nodule primordia, and 85,482 and 80,233 SAGE tags were recovered, respectively. Comparison of the tag frequency identified 407 tag species that appeared in significantly greater numbers in the nodulating root than in the uninfected root, and the converse was found for 428 tag species. Gene identification of the tags was performed by matching them to L. japonicus expressed sequence tag sequences. We made several novel findings by applying SAGE to transcript analysis of legume root nodulation. A gene that showed the most significant increase in tag number upon nodulation has not been described previously. Different levels of transcription induction among leghemoglobin gene paralogs were found, indicating the effectiveness of SAGE in discriminating different gene family members. We identified genes for 44 unknown tags by means of reverse SAGE. We found 11 antisense tags that increased during nodulation, indicating that regulation of gene expression by antisense transcripts may occur in an organ-dependent manner.
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Redden, RJ, A. Diatloff, and T. Usher. "Field screening accessions of Phaseolus vulgaris for capacity to nodulate over a range of environments." Australian Journal of Experimental Agriculture 30, no. 2 (1990): 265. http://dx.doi.org/10.1071/ea9900265.

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Nineteen lines of Phaseolus vulgaris L. were identified as promising for nodulation ability in a sequence of 2 screenings from 1462 germplasm accessions. These 19 lines plus 4 checks were further evaluated over 4 sites (Rocklea in 1985; Hermitage, Kingaroy and Applethorpe in 1987) and were sown within split-blocks with main treatments of nitrogen fertiliser, inoculum applied, and control with nodulation dependent on indigenous rhizobia. Nitrogen fertiliser significantly suppressed nodulation at Applethorpe and Hermitage sites only. Inoculation with Rhizohium phuseoli strain CC511 was most effective at Applethorpe, the least fertile site. The control nodulated most at Kingaroy. Accession ICA2 1573 was exceptional in its ability to nodulate with indigenous or supplied inoculum, and in the presence of nitrogen fertiliser. This nodulating ability was also shown, less consistently, by accessions Epicure and Amarillo 155. Some accessions were treatment specific for nodulation level: the superior nodulation ability of Campbell 20 was strongly inhibited by nitrogen fertiliser; specific cultivar-Rhizobium strain compatibility was shown by Selection 46, Small White 38, and Red Mexican; BAT1 198 and G6637 were apparently incompatible with Rhizobium strain CC511. Other accessions showed site and treatment specific nodulation responses, while the check entry, Gallaroy, was consistently poor in nodulation throughout the trial.
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Dissertations / Theses on the topic "Nodulation"

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Guan, Dian. "Rhizobial infection in nodulation." Thesis, University of East Anglia, 2012. https://ueaeprints.uea.ac.uk/42403/.

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Nodulation is a symbiosis between plants and bacteria called rhizobia which leads to the formation of a lateral organ called a nodule where nitrogen fixation occurs. Nodulation can be divided into two developmental programmes, rhizobial infection, and nodule organogenesis, both of which are required for nitrogen fixation. In my PhD studies, I focused on the study of rhizobial infection using the Medicago truncatula-Sinorhizobium meliloti model system. NIN is an important transcription factor in the nodulation signalling pathway that functions both in rhizobial infection and nodule organogenesis. Gene expression profiling of nin during rhizobial infection has enabled me to identify its potential downstream targets including several NIN-dependent infection-related genes and, surprisingly, genes involved in mycorrhization that are apparently repressed by NIN. The identification of these genes has provided insight into how NIN functions in rhizobial infection and revealed potential cross-talk between nodulation and mycorrhization pathways. In the course of this work I discovered two infection mutants. One of the mutants, cbs1, was cloned in collaboration with a colleague in the lab. It encodes a Cystathionine Beta-Synthase domain containing protein with a potential role in reactive oxygen species homeostasis. The other mutant, which I named knocks but can’t enter (kce), is blocked at an early stage of infection. I used conventional mapping and next-generation sequencing technologies to genetically map kce to a known rhizobial infection gene LIN. The kce mutant developed nodules with central rather than peripheral vascular bundles resembling nodules from the more ancient Frankia-actinorhizal symbiosis. Using kce and other infection mutants I demonstrate that this abnormal nodule architecture results from a failure of infection to reach the nodule cortex. Based on this finding, I predict that Nod factor activated signalling in the nodule cortex plays a role in determining nodule structure.
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Stokkermans, Thomas Jan Willem. "Bradyrhizobium elkanii signals in nodulation /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487849696964735.

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Buzas, Diana M. "Molecular genetic analysis of legume nodulation /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19380.pdf.

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Miwa, Hiroki. "Calcium signalling in nodulation and mycorrhization." Thesis, University of East Anglia, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423392.

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Hogg, Bridget V. "Competitive nodulation blocking in cv. Afghanistan pea." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365074.

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Alazard, Didier. "La nodulation caulinaire dans le genre Aeschynomène." Lyon 1, 1991. http://www.theses.fr/1991LYO10080.

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Plusieurs especes de legumineuses tropicales appartenant au genre aeschynomene portent des nodules fixateurs d'azote a la fois sur leurs racines et sur leur tige. Ces especes peuvent etre classees en trois groupes d'inoculation croisee. L'infection de la tige d'a. Afraspera a lieu au niveau de sites de nodulation predetermines selon un processus d'infection directement intracellulaire qui ne fait intervenir ni poils absorbants, ni cordons d'infection. La plupart des rhizobia isoles des nodules caulinaires sont capables de fixer l'azote moleculaire en cultures pures. L'etude taxonomique de ces rhizobia a permis de les classer dans le genre bradyrhizobium. Sur le plan des applications agronomiques, les potentialites de fixation d'azote considerables de ces plantes permettent leur utilisation comme engrais vert en riziculture irriguee. Les rendements en riz ont pu etre doubles dans des essais en microparcelles. De plus, la fixation d'azote par les nodules caulinaires n'est pas inhibee par l'azote combine du sol
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Gresshoff, Peter M. "Plant genetic control of nodulation in legumes." Thesis, Canberra, ACT : The Australian National University, 1988. http://hdl.handle.net/1885/140284.

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Kim, Sung-Yong Stacey Gary. "Extracellular ATP, apyrase and nodulation of non-legumes." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/7189.

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Title from PDF of title page (University of Missouri--Columbia, viewed on February 24, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Dr. Gary Stacey. Vita. Includes bibliographical references.
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Sista, Prakash Rao. "Characterization of nodulation defective mutants of Bradyrhizobium japonicum." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75665.

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The Rhizobium-legume symbiosis is an opportunistic association between two symbiotic partners that results in the formation of the root nodule. The process depends on the expression of a number of plant and bacterial genes that are considered critical for the establishment and maintainance of the symbiotic state. The merits of a mutational approach to the analysis of symbiosis have been recognized for several years and transposon Tn5 mutagenesis of Rhizobium has led to the identification of several symbiotic genes. This study describes the use of Tn5 mutagenesis for the isolation of symbiotically defective mutants of Bradyrhizobium japonicum. Two classes, auxotrophic and cell surface-altered mutants defective in nodule formation, have been characterized. In B. japonicum USDA 122, histidine auxotrophs that are defective in nodulation have been studied. The mutagenized DNA region has been cloned and the wild-type DNA region isolated by hybridization and complementation. In B. japonicum 61A76, Tn5-induced cell surface-altered mutants have been isolated by selecting for bacteriophage resistance. Several parameters have been used to demonstrate alterations in cell surface components. It has been shown that the Tn5 insertion is not the primary cause of the mutation in two of the characterized mutants. Complementation tests have led to the isolation of a wild-type DNA-containing cosmid, pPS23A, that overcomes the symbiotic defect in one of the mutants. Analysis of the cell surface showed a partial restoration of surface components in the complemented mutant.
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Clark, Sonya A. "Herbicide effects on white clover growth and nodulation." Thesis, University of Canterbury. Microbiology, 1987. http://hdl.handle.net/10092/6909.

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Five herbicides commonly used for suppression of weed growth in white clover seed crops were tested for toxicity against white clover (Trifolium repens), Rhizobium trifolii and the nitrogen fixing symbiosis formed between these two organisms. Trials were carried out on R.trifolii on solid and in liquid media to determine if growth of this bacterium was affected by the presence of the 5 herbicides. Paraquat and MCPB substantially inhibited bacterial growth on solid medium. Bentazone, fusilade and kerb caused very small zones of growth inhibition of R.trifolii on solid agar at high concentrations. None of the herbicides tested affected growth of R.trifolii in liquid culture. In vitro studies of herbicide toxicity toward white clover were carried out to identify interactions of herbicide activity with rhizobial inoculation and supplied nitrogen, and to attempt to identify the targets of herbicide activity. Nodules grown under in vitro conditions were excised and used for ultrastructural examination. Herbicides were applied to plants grown in vitro at two different stages of plant growth. White clover proved to be very sensitive to all herbicides at the early seedling stage. Three week old plants were more tolerant. Pot experiments in a glasshouse environment indicated the relevance of in vitro experiments of herbicide toxicity against plants and gave information on the effect of soil water levels on herbicide activity. Paraquat was extremely toxic to white clover both in vitro and in pot experiments. Nodulation is affected to some extent directly by this herbicide although dessication of foliage probably has some role in halting activity of the nitrogenise enzyme. MCPB caused severe deformation of root tissue both in vitro and in pot experiments. It must be either contaminated with the active form of this herbicide, MCPA, or is being broken down to the active form by bacterial or chemical action. Bentazone did not damage white clover or nodule activity in a consistent way in vitro. However this herbicide did have a deleterious effect on both plant weight and nodulation when applied to white clover grown in soil, particularly under conditions of low soil moisture. Fusilade showed a direct effect on the activity of nitrogenase in vitro. Fusilade also acted more severely against plants of higher nutritional status, and appeared to affect nodule activity directly rather than affecting nodules via damage to other plant parts. Kerb was very toxic to seedling white clover in vitro although older plants were not as susceptible and were stimulated by high concentration of kerb. In pots white clover was slightly inhibited by kerb at recommended concentration while 10 x this concentration did not cause any inhibition of nodulation or plant growth. Differences in results between in vitro and pot studies of toxicity of these herbicides to white clover appear to be due to the different application methods used. In vitro herbicides were applied to the whole plant while in pot experiments herbicides were foliarly applied, hence more uptake by roots would be expected. Pot experiments indicated that changes in nodulation generally reflected changes in plant growth rather than an independent activity of the herbicide on nodulation.
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Books on the topic "Nodulation"

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Sprent, Janet I. Nodulation in legumes. Kew: Royal Botanic Gardens, 2001.

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Legume nodulation: A global perspective. Chichester, West Sussex: Wiley-Blackwell, 2009.

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Rossen, Lone. Molecular analysis of the nodulation genes of "Rhizobium leguminosarum". Norwich: University of East Anglia, 1985.

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Burn, Joanne Elizabeth. Analysis of the regulatory nodulation gene nodD of Rhizobium leguminosarum. Norwich: Universityof East Anglia, 1989.

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Sutton, John Mark. Analysis of the function and secretion of the nodulation signalling protein, NodO. Norwich: University of East Anglia, 1994.

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Sheardown, Jennifer Jayne. The effects of soil nitrogen content on the nodulation of trifolium hybridum and lotus corniculatus when grown on tailings. Sudbury, Ont: Laurentian University, Department of Biology, 2000.

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Johnson, Dallas William. Determination of the presence of rhizobia residing in Sudbury barren soil capable of effectively nodulating Trifolium hybridum and Lotus corniculatus. Sudbury, Ont: Laurentian University, Department of Biology, 1994.

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Johnson, Dallas William. Metal tolerance, survival characteristics and nodulating abilities of isolates of Rhizobium Leguminosarum Biovar Trifolii for Sudbury reclaimed, metal-contaminated soils. Sudbury, Ont: Laurentian University, Department of Biology, 1997.

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Khush, G. S. Nodulation and Nitrogen Fixation. Agribookstore, 1993.

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Sprent, Janet I. Legume Nodulation: A Global Perspective. Wiley & Sons, Incorporated, John, 2009.

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Book chapters on the topic "Nodulation"

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Promè, Jean Claude, and Nathalie Demont. "Nodulation Factors." In Plant-Microbe Interactions, 272–307. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1213-0_8.

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Scott, Kieran F., Marlene Saad, G. Dean Price, Peter M. Gresshoff, Heather Kane, and Kaw Yan Chua. "Conserved Nodulation Genes are Obligatory for Nonlegume Nodulation." In Molecular genetics of plant-microbe interactions, 238–40. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4482-4_59.

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Evans, H. J., P. J. Bottomley, and W. E. Newton. "Factors Affecting Nodulation." In Nitrogen fixation research progress, 315–21. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5175-4_44.

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Evans, H. J., P. J. Bottomley, and W. E. Newton. "Legume Nodulation Mutants." In Nitrogen fixation research progress, 39–45. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5175-4_5.

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Lee, K. H., J. C. Fearn, F. C. Guinel, and T. A. Larue. "Ethylene and Nodulation." In New Horizons in Nitrogen Fixation, 303–8. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2416-6_34.

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Lie, T. A., G. J. Nijland, and S. H. Waluyo. "Competition between Nodulating and Non-Nodulating Rhizobium Strains: Delay of Nodulation." In Physiological Limitations and the Genetic Improvement of Symbiotic Nitrogen Fixation, 127–36. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1401-8_14.

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Kondorosi, Eva. "From Nodulation to Antibiotics." In Principles of Plant-Microbe Interactions, 427–34. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08575-3_45.

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Gualtieri, Gustavo, and Ton Bisseling. "The evolution of nodulation." In Plant Molecular Evolution, 181–94. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4221-2_9.

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Tanaka, Kiwamu, Katalin Tóth, and Gary Stacey. "Role of Ectoapyrases in Nodulation." In Biological Nitrogen Fixation, 517–24. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2015. http://dx.doi.org/10.1002/9781119053095.ch52.

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Lindstrom, K., L. Paulin, C. Roos, and L. Suominen. "Nodulation Genes of Rhizobium Galegae." In Nitrogen Fixation: Fundamentals and Applications, 365–70. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0379-4_43.

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Conference papers on the topic "Nodulation"

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Guro, P., V. Safronova, A. Sazanova, I. Kuznetsova, A. Belimov, V. Yakubov, E. Chirak, A. Afonin, E. Andronov, and I. Tikhonovich. "Rhizobial microsymbionts of the narrowly endemic Oxytropis species growing in Kamchatka possess a set of genes that are associated with T3SS and T6SS secretion systems and can affect the development of symbiosis." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.099.

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A collection of rhizobial strains isolated from root nodules of the narrowly endemic legume species Oxytropis erecta, O. anadyrensis, O. kamtschatica and O. pumilio growing on the Kamchatka Peninsula (Russian Federation) was obtained. Analysis of the 16S rRNA gene sequence showed a significant diversity of isolates belonging to the families Rhizobiaceae (Rhizobium), Phyllobacteriaceae (Mesorhizobium, Phyllobacterium) and Bradyrhizobiaceae (Bosea, Tardiphaga). Pairs of taxonomically different strains in various combinations were isolated from some nodules of Oxytropis plants. Plant nodulation assays showed that only strains belonging to the genus Mesorhizobium (M. jarvisii, M. loti and M. huakuii) could form nitrogen-fixing nodules. The nitrogen-fixing activity of the strains was more associated with the host plant than with the species of strains. The whole genome sequences analysis showed that the strains M. loti 582 and M. huakuii 583 possessed symbiotic genes necessary for the formation of effective symbiosis and grouped into Sym-clusters. In contrast, the strain T. robiniae 581 had only a reduced number of fix genes, while the strains Phyllobacterium sp. 628 and R. lusitanum 629 possesed only individual symbiotic genes, which obviously did not participate in the formation of nodules. It was also stated that the strains M. loti 582 and M. huakuii 583 had a significantly larger set of genes related to the secretion systems T3SS and T6SS that can affect the host specificity of strains, compared with 6 commercial strains used as reference. These two strains formed nodules of two types (typical elongated and atypical rounded) on Oxytropis plants. We suggest that a possible cause of the observed phenomenon is the availability of different nodulation strategies in these strains (dependent and independent of Nod-factors). Thus, as a result of studying the collection of strains isolated from the narrow endemic species of Kamchatka Oxytropis, interesting objects were selected to study the functions of the T3SS and T6SS genes, and their role in the development of rhizobia-legume symbiosis. The prospects of using strains with gene systems for both symbiotic and non-symbiotic nodulation to enhance the efficiency of plant-microbe interactions by expanding the host specificity and increasing the efficiency of nodulation are discussed.
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Chou, Ting-Yu, Chia-Ling Chen, Fu-Je Chen, Chin-Chen Huang, and James Chen. "A Study of the Influence of Microstructure, Nodulation and Barrier on Signal Integrity." In 2021 International Conference on Engineering and Emerging Technologies (ICEET). IEEE, 2021. http://dx.doi.org/10.1109/iceet53442.2021.9659692.

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Han, Liqi, Peter M. Gresshoff, and Jim Hanan. "Modelling Root Development with Signalling Control: A Case Study Based on Legume Autoregulation of Nodulation." In 2009 Third International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA). IEEE, 2009. http://dx.doi.org/10.1109/pma.2009.40.

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Tomic, Dalibor, Vladeta Stevovic, Dragan Djurovic, Milomirka Madic, Milos Marijanovic, Aleksandar Simic, and Jasmina Knezevic. "ZNAČAJ PRAVILNE ISHRANE KRMNIH LEGUMINOZA FOSFOROM NA KISELIM ZEMLJIŠTIMA." In XXVI savetovanje o biotehnologiji sa međunarodnim učešćem. Agronomski fakultet Univerziteta u Kragujevcu, 2021. http://dx.doi.org/10.46793/sbt26.037t.

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In the Republic of Serbia, acid soils cover about 60% of the total arable land. On such soils, numerious micro and macro elements are hardly accessible for plants. Sufficient supply of leguminous plants with phosphorus is very important for the processes of their growth and development, nodulation and nitrogen fixation. The aim of this study was to analyze the importance of proper nutrition of leguminous plants with phosphorus on acid soils and to point out the problems that exist in such conditions, as well as the possible ways to solve them.
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Dozet, Gordana, Vojin Đukic, Zlatica Miladinov Mamlic, Nenad Đuric, Gorica Cvijanovic, Marijana Jovanovic Todorovic, and Dimitrije Dozet. "UTICAJ SORTE I MIKROBIOLOŠKIH PREPARATA NA BROJ I MASU NODULA KOD ORGANSKE PROIZVODNJE PASULJA." In SAVETOVANJE o biotehnologiji sa međunarodnim učešćem. University of Kragujeva, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.055d.

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Three-year research, in the impact of microbial preparations and Gunatito on bean-root-nodule number and mass in organic production, was published. The highest nodule number and mass was in the year with a more favorable weather conditions, with a higher humidity. The lowest nodule number was in the method with a direct Tiffi application on the pre-sowing seed, whereas the lowest nodule mass was in the control variety. A positive insignificant correlation was determined between nodule number and mass, and yield. Nodulation was variety dependant. EM application 7 days before sowing, and the combination of Guanito before sowing with EM in flowering, showed a positive impact on nodule number and mass.
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Salvador, Anna Dias, Gabriela Ramos Alves, Enaldo Melo Lima, Bernardo Ferreira Paula Ricardo, and Henrique Moraes Salvador Silva. "METASTATIC THYMOMA OF THE BREAST – CASE REPORT." In Scientifc papers of XXIII Brazilian Breast Congress - 2021. Mastology, 2021. http://dx.doi.org/10.29289/259453942021v31s1018.

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Introduction: Thymomas are rare malignant epithelial neoplasms arising in the thymus. These tumors are commonly located in the prevascular mediastinum but can also be found in other regions of the mediastinum, neck, pulmonary hilum, thyroid gland, lungs, pleura, or pericardium. This disease could be suspected as an incidental finding identified on imaging, local thoracic symptoms or due to a paraneoplastic syndrome. Pleural or pericardial effusions are the most common manifestations of more disseminated disease and may also cause thoracic symptoms. Extrathoracic metastases are seen in fewer than seven percent of patients at presentation, most commonly in the kidneys, extrathoracic lymph nodes, liver, brain, adrenals, thyroid, and bone. Case report: A 66-year-old, white female patient, with previous left mastectomy due to a phyllodes sarcoma in 1997. Diagnosed with malignant thymoma in 2013 and pleural involvement, undergoing systemic chemotherapy and surgery with complete remission of the disease at that time. Two years after, in 2015, presented with disease recurrence in the diaphragm, pleura and lymph nodes, undergoing new surgery, radiotherapy and a second line chemotherapy regimen. Over the years, the disease progressed despite the cancer treatment instituted. In December 2020, the patient presented nodulation in the right breast, with core biopsy suspicion of ductal carcinoma. Undergoing quadrantectomy with lymph node biopsy, with the surgical pathological report finding of thymoma metastasis, resected with free margins. The patient is currently at the 31st pembrolizumab cycle, in good clinical condition.
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Lima, Rodrigo Quevedo de, Eimi Nascimento Pacheco, Luiz Henrique Santana de Araujo, Cassio Fernando Paganini, and Katsuki Arima Tiscoski. "PLASMOBLASTIC LYMPHOMA WITH MAMMARY MANIFESTATION: A CASE REPORT." In Scientifc papers of XXIII Brazilian Breast Congress - 2021. Mastology, 2021. http://dx.doi.org/10.29289/259453942021v31s1085.

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Introduction: Plasmoblastic lymphoma (PBL) is a rare entity of non-Hodking lymphoma that usually occurs in the oral cavity in immunosuppressed patients. The involvement of other organs has rarely been reported. The breast can be the site of the initial manifestation of many diseases and in cases like this report, lymphomas should be considered as differential diagnoses. Case report: D.S., female, 28 years old, quality reviewer, married, two children. Carrier of human immunodeficiency virus (HIV) with recent treatment. Intern for investigation of liver, duodenal and breast abnormalities. She had nodules in both breasts, with progressive growth for about two months, in addition she presente nausea, vomiting, episodes of diarrhea and weight loss. On physical examination of the breasts, presence of apparent vascularization and asymmetric breast – right breast about two times the size of the contralateral. On palpation, the right breast presented with multiple hard and mobile nodules in a single left nodulation in an inferolateral quadrant measuring about 4 cm, with the same characteristics as the previous ones. No axillary lymph node enlargement, supraclavicular or infraclavicular fossae were noticed. Core biopsy was performed on both breasts with the result of undifferentiated malignancy, with a diffuse standard and numerous foci of apoptosis (compatible with high-grade non-Hodgkin’s lymphoma). In the immunohistochemical study, there was positivity for LCA, MUM 1, CD10, EMA, CMYC, CD30, CD3 and Ki-67 with a proliferative índex of 95% in neoplasia. Histopathological aspects and immunohistochemical profile were compatible with plasmoblastic lymphoma. During hospitalization, the patient underwent a myelogram that showed slightly hypercellular bone marrow, hematopoiesis was present and was megaloblastic. There was moderate diffuse and a focal irregular infiltration by pleomorphic and dysmorphic plasma cells, suggesting spinal cord involvement by plasmoblastic lymphoma. In addition, oncological PET/CT was performed which showed a metabolic increase in nodular formations in the right breast and thickening of gastroduodenal transition compatible with the clinical information of lymphoproliferative disease. The patient underwent six cycles of the EPOCH polychemotherapy scheme (etoposide, prednisone, oncovinm, cyclophosphamide and ydroxideunorubicin), associated with four cycles of methotrexate at high doses, with remission of breast lesions and is currently being followed up.
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Reports on the topic "Nodulation"

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Handelsman, Jo. Determinants of nodulation competitiveness in Rhizobium etli. Final report for period September 30, 1996--September 29, 1999. Office of Scientific and Technical Information (OSTI), January 2000. http://dx.doi.org/10.2172/765240.

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L’taief, Boulbaba, Sihem Smari, Neila Abdi, and Bouaziz Sifi. Biochemical and Physiological Characterization of Rhizobia Nodulating Vicia faba L. Genotypes. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, June 2019. http://dx.doi.org/10.7546/crabs.2019.06.06.

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Daniel Gage. Molecular characterization of catabolite repression by succinate in the nodulating bacterium Sinorhizobium meliloti. Office of Scientific and Technical Information (OSTI), September 2006. http://dx.doi.org/10.2172/891983.

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