Relevant bibliographies by topics / Tissu parenchymateux

Academic literature on the topic 'Tissu parenchymateux'

Author: Grafiati
Published: 1 June 2024

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  1. Journal articles
  2. Book chapters
  3. Conference papers

Journal articles on the topic "Tissu parenchymateux":

1

O’Hair, S. K. "Cassava Root Starch Content and Distribution Varies with Tissue Age." HortScience 24, no. 3 (June 1989): 505–6. http://dx.doi.org/10.21273/hortsci.24.3.505.

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Abstract Cassava (Manihot esculenta L. Crantz) plants of ‘CMC-40’ and ‘CMC-92’ were grown over a 3-year period with annual harvests at the end of each growing season. Root tissues were divided into peel (secondary phloem with the thin cork tissue layer removed) and up to three parenchymatous tissue age groups. Up to 40% of the starch concentration can be deposited in root parenchymatous tissue. Root starch is permanently removed from parenchymatous tissue of older roots, probably in association with new foliage growth at the start of a new growing season. As a result of periods of little or no growth, visible annual growth rings develop in the root, separating each season’s major root enlargement periods. Genetic differences in starch content were noted among the tissues between ‘CMC-40’ and ‘CMC-92’. However, both demonstrated similar loss of starch from older tissue.
2

Bernardino-Nicanor, Aurea, José Montañez-Soto, Eloy Conde-Barajas, María Negrete-Rodríguez, Gerardo Teniente-Martínez, Enaim Vargas-León, José Juárez-Goiz, Gerardo Acosta-García, and Leopoldo González-Cruz. "Spectroscopic and Structural Analyses of Opuntia Robusta Mucilage and Its Potential as an Edible Coating." Coatings 8, no. 12 (December 15, 2018): 466. http://dx.doi.org/10.3390/coatings8120466.

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Mucilage extracted from the parenchymatous and chlorenchymatous tissues of Opuntia robusta were obtained using water or ethanol as the extraction solvent. The changes in the different tissues by using different extraction solvents were evaluated via scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) and Raman spectroscopy; in addition, the effect of mucilage coating on the various quality characteristics of tomato (Lycopersicum sculentum) was evaluated. The SEM results showed that the mucilage extracted from the parenchyma had a higher aggregation level that the mucilage extracted from the chlorenchyma. The presence of three characteristic bands of pectic substances in the FT-IR spectra between 1050 and 1120 cm−1 indicated that the mucilage extracted from the parenchymatous tissue had a higher content of pectic compounds than the mucilage extracted from the chlorenchymatous tissue. It was also observed in the Raman spectra that the level of pectic substances in the mucilage extracted from the parenchymatous was higher than that in the mucilage extracted from the chlorenchymatous tissue. The mucilage extracted from the parenchymatous tissue was more effective as an edible coating than the mucilage extracted from the chlorenchymatous tissue. Tomatoes covered with mucilage showed significantly enhanced firmness and reduced weight loss. The uncoated tomatoes showed higher lycopene content than the coated tomatoes on the 21st day. This study showed that the Opuntia robusta tissue and extraction solvent influence mucilage characteristics and that Opuntia robusta mucilage is a promising edible coating.
3

Brooks, Scott E., and Joseph D. Shorthouse. "Developmental morphology of stem galls of Diplolepis nodulosa (Hymenoptera: Cynipidae) and those modified by the inquiline Periclistus pirata (Hymenoptera: Cynipidae) on Rosa blanda (Rosaceae)." Canadian Journal of Botany 76, no. 3 (March 1, 1998): 365–81. http://dx.doi.org/10.1139/b98-001.

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Diplolepis nodulosa (Beutenmüller) induces small, single-chambered, prosoplasmic galls in stems of Rosa blanda Ait. Gall initiation begins when adult females deposit a single egg into the procambium of R. blanda buds. Pith cells at the distal pole of the egg lyse forming a chamber into which the hatching larva enters. Cells lining the chamber differentiate into nutritive cells, which serve as the larval food. Gall growth is characterized by the proliferation of parenchymatous nutritive cells causing gall enlargement. A separate gall vasculature does not form, but instead, gall tissues are irrigated by the existing stem vasculature. Maturation begins when gall tissues cease proliferating and differentiate into distinct layers concentrically arranged around the larval chamber. The innermost layer is composed of cytoplasmically dense nutritive tissue, followed by parenchymatous nutritive tissue, sclerenchyma, cortex, and epidermis. Parenchymatous nutritive tissue differentiates into nutritive tissue and is consumed by the larva. Galls of D. nodulosa are susceptible to anatomical modification by the phytophagous inquiline Periclistus pirata (Osten Sacken). Galls attacked by P. pirata become enlarged and multichambered, with little resemblance to inducer-inhabited galls. Periclistus pirata kill the larva of D. nodulosa at oviposition and deposit several eggs per host gall. Inquiline-occupied galls may contain the eggs of several females. Nutritive tissue induced by D. nodulosa disintegrates. Growth of attacked galls occurs prior to hatching of P. pirata eggs. At egg hatch, the gall appears as an enlarged hollow sphere and larvae disperse over the chamber surface and feed on parenchymatous tissue. Feeding induces tissue proliferation, which surrounds each larva within its own chamber. As galls mature, cells surrounding each larval chamber lignify forming a sclerenchyma sheath. Cells inside the sclerenchyma sheath differentiate into nutritive cells and are consumed by the inquiline larvae.Key words: Rosa, Cynipidae, gall, developmental morphology, inquiline.
4

Rothwell, Gar W., and Donald A. Eggert. "A monograph of Dolerotheca Halle, and related complex permineralised medullosan pollen organs." Transactions of the Royal Society of Edinburgh: Earth Sciences 77, no. 1 (1986): 47–79. http://dx.doi.org/10.1017/s0263593300099995.

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ABSTRACTNumerous permineralised, complex medullosan pollen organs are described from Middle and Upper Pennsylvanian sediments of North America. Together with a reinvestigation of type specimens for the previously described species, these provide the basis for fully characterising internal structure and external morphology, and for recognising structural homologies among all medullosan synangia. All medullosan pollen organs, simple and complex, can be interpreted as consisting of sporangial tubes that are embedded in parenchymatous and sclerenchymatous ground tissue, and that have vascular bundles within the parenchymatous tissue. The sporangial tubes are arranged in a single series, usually a ring, with parenchymatous ground tissues and vascular bundles to the outside of the ring and sclerenchymatous ground tissue to the inside of the ring. In the larger, complex forms the ring is plicately folded and there may be a centrally-placed hollow in the distal surface. Differences in morphology, in the folding pattern of the rings, in the structure (or absence) of a distal hollow, and in architecture of the major vascular system are employed to delimit genera. Size and shape of the organ, histological features, numbers of sporangia, and presence or absence of lacunae are used to delineate species. Currently recognised genera are Dolerotheca Halle, Sullitheca Stidd et al., Stewartiotheca Eggert and Rothwell, and Bernaultia gen. nov.
5

SANDERS, William B., and Asunción DE LOS RíOS. "Structural evidence of diffuse growth and parenchymatous cell division in the cortex of the umbilicate lichen Lasallia pustulata." Lichenologist 50, no. 5 (September 2018): 583–90. http://dx.doi.org/10.1017/s0024282918000336.

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AbstractHow growth is distributed within the morphologically diverse thalli of lichens is still poorly known and the anatomical mechanisms involved are not well understood. This work applies electron microscopy (SEM and TEM) to examine cell- and tissue-level events in the umbilicate thallus of Lasallia pustulata, whose pattern of expansion was the subject of a previous field study. Stacks of epinecral tissue accumulating at the thallus surface showed broadening bases and recurring rupture attributable to diffuse expansion of the living tissue below. Cortical cells, dividing anticlinally, adjoined septa to previous septa, indicating parenchymatous divisions. These observations are all consistent with previous contentions that mature, organized tissues within the thallus are capable of continued diffuse growth. They provide a developmental explanation for the morphology of the epinecral layer and suggest that anatomical characteristics may be helpful in recognizing diffuse growth patterns. Parenchymatous cell divisions, believed until recently to never occur in lichen thallus tissues, are shown to play a developmental role in the diffuse growth of the umbilicate lichen thallus.
6

Amissah, J. Naalamle, Dominick J. Paolillo, and Nina Bassuk. "Adventitious Root Formation in Stem Cuttings of Quercus bicolor and Quercus macrocarpa and Its Relationship to Stem Anatomy." Journal of the American Society for Horticultural Science 133, no. 4 (July 2008): 479–86. http://dx.doi.org/10.21273/jashs.133.4.479.

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This study investigated the relationship of stem anatomy to differences in rooting ability between Quercus bicolor Wild. and Quercus macrocarpa Michx. cuttings. Quercus bicolor cuttings were found to have a significantly greater proportion of parenchymatous gaps in the sclerenchyma sheath over a 9-week period compared with Q. macrocarpa cuttings. In Q. macrocarpa, the percentage gap was generally low, coinciding with the low percentage rooting observed in this species. Percentage rooting correlated well (r2 = 0.75) with the percentage parenchymatous gap in the perivascular region of Q. bicolor cuttings. The problems with accepting this relationship as causal are stated in the discussion. Untreated cuttings showed normal stem organization: a dermal tissue system that included the initial stages of phellem formation, a cortex, and a ring of closely arranged vascular bundles in early stages of secondary growth. The locations of the five distinct lobes of the pith were coordinated with the locations of root primordia. Callus growth was first detected in the cortex (i.e., external to the fiber bundles), followed by proliferation within the phloem, opposite the lobes of the pith, 8 to 12 days after cuttings were treated with indole butyric acid (6000 mg·L−1 dissolved in 50% v/v ethanol in water). By 14 to 16 days, root primordia had developed within the proliferative tissue in the secondary phloem. In both species, root primordia penetrated parenchymatous gaps in the fiber sheath directly, the fiber bundles being displaced laterally as the roots increased in size.
7

Jaumień, Franciszka. "Factors influencing flower bud formation on the pear tree cultivar 'Doyenne du Cornice'. II. Influence of growth inhibition on the anatomical structure of the stem." Acta Agrobotanica 36, no. 1-2 (2013): 95–101. http://dx.doi.org/10.5586/aa.1983.009.

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Differentiation of the particular tissues in shoots inhibited in growth by chlormequat occurs differently than in vigorously growing ones. After the end of elongation growth, in the subapical part of shoots sprayed with chlormequat the cortex extends and secondary xylem develops less intensively, this leading to an increased participation of parenchymatous tissue in the stem.
8

TSUNO, Kazunori, and Satoshi WAKIMOTO. "Ultrastructural changes in the interactions between rice leaf parenchymatous tissue and incompatible bacteria." Japanese Journal of Phytopathology 52, no. 4 (1986): 709–20. http://dx.doi.org/10.3186/jjphytopath.52.709.

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9

Wilder, George J. "Anatomy of first-order roots in the Cyclanthaceae (Monocotyledoneae). II. Stele (excluding pericycle)." Canadian Journal of Botany 64, no. 12 (December 1, 1986): 2848–64. http://dx.doi.org/10.1139/b86-377.

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Xylem always develops within xylem fascicles, and the phloem either comprises phloem fascicles or is dispersed. Xylem and phloem fascicles may be encircled by a sheath of cells different from cells of the interfascicular tissue. The interfascicular tissue is either homogeneous, i.e., consisting of fibers, or heterogeneous, i.e., formed of fiber aggregates and a parenchymatous and (or) sclerenchymatous intrusive network. This network is interpreted as modified pith. A true pith is often present, and four kinds of true pith are recognized.
10

Evans, Rodger C., and Sam P. Vander Kloet. "Comparative analysis of hypocotyl development in epiphytic, lignotuber-forming, and terrestrial Vaccinieae (Ericaceae)." Botany 88, no. 6 (June 2010): 556–64. http://dx.doi.org/10.1139/b10-031.

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A comparative analysis of hypocotyl development was undertaken with seedlings of three Vaccinieae (Ericaceae) species ( Macleania pentaptera Hoerold, Macleania rupestris (Kunth) A.C. Sm., and Vaccinium angustifolium Ait.) to determine the developmental basis for enlarged hypocotyls leading to the development of woody tubers (lignotubers) in M. pentaptera and M. rupestris. Differences in hypocotyl development are apparent after the first true leaves are visible in each species. Vascular tissue in M. rupestris and V. angustifolium is composed primarily of axial columns of secondary xylem. Secondary xylem tissues in M. pentaptera remain mostly parenchymatous and form radial columns of cells through numerous periclinal divisions. Furthermore, the secondary xylem of M. pentaptera comprises random networks of interconnected, small xylem elements in comparison with the secondary xylem of M. rupestris and V. angustifolium. These differences in hypocotyl development persist through the first 200 d of hypocotyl development, and ultimately lead to the development of a large lignotuber in M. pentaptera. Given the large amounts of parenchymatous tissue, a secondary xylem of relatively short secondary xylem elements, and the absence of adventitious buds, we propose that the lignotubers of M. pentaptera are used for short term water storage, rather than regeneration.
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You might also be interested in the extended bibliographies on the topic 'Tissu parenchymateux' for particular source types:
Journal articles

Book chapters on the topic "Tissu parenchymateux":

1

Tomlinson, P. B. "Palm stem—mechanics, age determination, and hydraulics." In The Structural Biology of Palms, 159–92. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198545729.003.0007.

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Abstract The palm stem, as in all erect woody axes, serves the three-fold functions of transport, mechanical support, and storage. The transport system moves water and mineral nutrients in the xylem from the roots to the leaves, and also moves assimilates (sugars) in the phloem from the leaves (‘sources’) to regions where they are either metabolized or stored (in ‘sinks’) such as root and shoot apices, developing inflorescences and fruits, and storage parenchyma. The mechanical function of erect axes is to support the leafy crown and appendages, and depends on efficient distribution of sclerenchyma. The storage function is evident as starch grains which accumulate in the ground parenchyma. The three functions are clearly separated in the differentiation between different kinds of stem tissues visible microscopically in a transverse section (Plate 7). Individual fibrovascular bundles represent the combined conducting-mechanical system; however, mechanical fibres are clearly segretated from the conducting cells of xylem and phloem. The parenchymatous ground tissue represents not only the storage tissue, but the matrix within which the fibrovascular system is embedded.
2

Tomlinson, P. B. "Vascular anatomy of the stem." In The Structural Biology of Palms, 123–56. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198545729.003.0006.

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Abstract Palms, because of their simple architecture, provide ideal objects for the study of economy and efficiency in organic construction. They have unbranched axes, each of which supports a terminal tuft of appendages (leaves), each leaf supported by a basal sheath. The palm stem represents the reinforced concrete of the structural engineer (Fig. 6.1), since its tissues can be thought of as a series of axially-orientated vascular bundles (steel rods) embedded in a parenchymatous ground tissue (concrete matrix). Unlike the engineer’s reinforced concrete, the vascular bundles of the palm stem are not necessarily uniformly distributed, but usually concentrated toward the stem periphery for maximum efficiency. The stem of many palms has an additional mechanical feature, unfamiliar to human engineers, in that it can increase its stiffness with age. This is a very efficient way of growing because it means that the palm is not excessively overbuilt. It is as if an engineer could design a struture that becomes increasingly stronger directly as increasing strength is required. If the life span of the structure is shortened accidentally by some factor other than mechanical failure, the initial investment in the aborted structure is minimized. In terms of the palm tree this ‘saved’ investment can be diverted to more appropriate ecological events, such as growing in height, or in reproduction.

Conference papers on the topic "Tissu parenchymateux":

1

Makarov, V. N., G. V. Mel'nichuk, and G. V. Yushchenko. "New electrodes system with radiofrequency scalpel for resection of parenchymatous tissue." In 8th International Vacuum Electron Sources Conference and Nanocarbon (2010 IVESC). IEEE, 2010. http://dx.doi.org/10.1109/ivesc.2010.5644259.

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2

Makarov, V. N., and G. V. Yushchenko. "System for RESECTIOn of parenchymatous tissue based on existing complex "Metatom-2"." In 2010 International Conference on Actual Problems of Electron Devices Engineering (APEDE 2010). IEEE, 2010. http://dx.doi.org/10.1109/apede.2010.5624077.

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