Results 141 to 150 of about 8,767 (177)
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New Phytologist, 2003
SummaryAerenchyma – tissue containing enlarged gas spaces – occurs in many plants. It is formed either as part of normal development, or in response to stress (e.g. hypoxia). Two mechanisms of aerenchyma formation have been described; schizogeny, in which development results in the cell separation and lysigeny, in which cells die to create the gas ...
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SummaryAerenchyma – tissue containing enlarged gas spaces – occurs in many plants. It is formed either as part of normal development, or in response to stress (e.g. hypoxia). Two mechanisms of aerenchyma formation have been described; schizogeny, in which development results in the cell separation and lysigeny, in which cells die to create the gas ...
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Aerenchyma formation in crop species: A review
Field Crops Research, 2013Flooding is a major problem in many crop areas around the world. However, many wetland plant species can expand their roots into flooded soils because of the presence of longitudinal aerenchyma channels that facilitate oxygen diffusion from the shoots to the root tips.
Takaki Yamauchi +3 more
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Aerenchyma Formation in Plants
2013Aerenchyma enhances internal aeration between, and within, shoots and roots. Aerenchyma formation is therefore important for the adaptation of plants in environments with excess water, such as plants with roots in waterlogged soils or submerged shoots.
Hirokazu Takahashi +3 more
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DIAPHRAGMS AND AERENCHYMA IN SCIRPUS VALIDUS
American Journal of Botany, 1971After the short‐lived apical meristem ceases activity, a basal intercalary meristem produces all new tissues in the aerial internode of Scirpus validus Vahl. These include extensions of the original vascular system and of the original partitioning walls as well as new vascular bundles and new walls which are produced in a predictable pattern ...
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HIGH CARBON DIOXIDE CONCENTRATIONS IN AERENCHYMA OF TYPHA LATIFOLIA
American Journal of Botany, 1992Diurnal and seasonal patterns of CO2 concentration ([CO2]) in leaf gas spaces were measured to better understand the relationship of sediment‐derived CO2 to photosynthesis in the emergent wetland species, Typha latifolia L. (cattail). Leaf [CO2] was above 2,000 μl/liter at dawn on all but the first sampling date.
John Y. H. Constable +2 more
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EFFECT OF ETHYLENE ON AERENCHYMA DEVELOPMENT
American Journal of Botany, 1981When applied to a part of stem or basal part of stem and root system, 1 ppm ethylene induced lysigenous aerenchyma development in the stem cortex of Helianthus annuus, Lycopersicon esculentum, and Phaseolus vulgaris. Local application of ethylene to a part of stem significantly increased the activity of cellulase in that part of stem in the above three
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Programmed cell death during aerenchyma formation in Typha angustifolia leaves
Aquatic Botany, 2014Abstract To facilitate gas exchange, some plants produce specialized air cavities called aerenchyma. To determine how the aerenchyma is formed, we conducted serial experimental observations and tests. Here we provide evidence that aerenchyma is formed in Typha angustifolia leaves through cell lysis in which programmed cell death (PCD) is involved ...
Ni Xilu, Wen-Zhe Liu
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ROLE OF CELLULASE IN AERENCHYMA DEVELOPMENT IN SUNFLOWER
American Journal of Botany, 1979A hypothesis that ethylene causes aerenchyma development in waterlogged plants through increased cellulase activity was tested with sunflower, Helianthus annuus L. Treatment with commercial cellulase induced aerenchyma development in sunflower stem sections.
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Aerenchyma Formation and Methane and Oxygen Exchange in Rice
Soil Science Society of America Journal, 1993Abstract Limited information exists on the direct link between the intensity of soil reduction or anaerobiosis and gas exchange in rice ( Oryza sativa L.). A laboratory experiment was conducted to determine the extent to which specific levels of soil redox potential (Eh ...
H. K. Kludze +2 more
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