aerenchyma


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aerenchyma

[‚a′reŋk·ə·mə]
(botany)
A specialized tissue in some water plants characterized by thin-walled cells and large intercellular air spaces.
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The extent of aerenchyma development in all experiments was quantified by tissue porosity measurements by pycnometry, similar to the method described by Jensen et al.
One possibility is that following lysigenous aerenchyma formation in wheat roots, some degree of root function is lost even though the capacity to precipitate ions is retained (just as minerals will precipitate around a pipe connected with a more highly oxygenated area).
Research is needed to determine whether genotypic differences in aerenchyma development and other root characteristics related to waterlogging tolerance are associated with root ethylene production or the response to ethylene accumulation.
Crown roots of hypoxic plants produced aerenchyma, and this was more extensive in waterlogging-tolerant Savannah.
The leaf improved capacity to C[O.sub.2] uptake and diffusion can be related to the stomata and aerenchyma responses under Cd contamination.
Giffard, "Ethylene-promoted adventitious rooting and development of cortical air spaces (aerenchyma) in roots may be adaptive responses to flooding in Zea mays L," Planta, vol.
Whitmoyer, "Aerenchyma development in waterlogged plants," American Journal of Botany, vol.
It composed of epidermis, aerenchyma, septa, inner cortex with sclerenchyma and parenchymatous cells, and vascular bundle (Figure 17).
The emission of greenhouse gases across the water-air interface relies primarily on diffusion, ebullition, and internal transmission in aquatic plants aerenchyma [48].
The natural diversity of cell wall self-deconstruction mechanisms expressed by plants should also be of interest in technology development, for example, aerenchyma formation during submergence, the remobilization of nutrients from senescing leaves and their abscission, and cell wall expansion during fruit maturation and organ growth.
Root growth, aerenchyma development, and oxygen transport in rice genotypes subjected to drought and waterlogging.