Cell shape in leaves of drought-stressed barley examined by low temperature scanning electron microscopy

Cells in leaves of well-watered and slowly drought-stressed barley seedlings were examined by low temperature scanning electron microscopy, when the leaves were turgid, when just wilting, and when sufficiently stressed to prevent either regain of turgor (leaf blades) or regrowth (leaf sheath bases)...

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Bibliographic Details
Published in:Annals of botany 1987-02, Vol.59 (2), p.191-195
Main Authors: Pearce, R.S, Beckett, A
Format: Article
Language:English
Subjects:
Barley
Biological and medical sciences
Bundle sheath cells
Cell physiology
Cell shape
cell structures
Cell walls
Cells, cell elements: structure and function
deformation
drought
electron microscopy
Epidermal cells
frost
Fundamental and applied biological sciences. Psychology
Guard cells
Hordeum
Hordeum vulgare
leaf analysis
Leaf blade
Mesophyll cells
Plant physiology and development
Plants
Seedlings
Turgor pressure
water stress
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Summary:Cells in leaves of well-watered and slowly drought-stressed barley seedlings were examined by low temperature scanning electron microscopy, when the leaves were turgid, when just wilting, and when sufficiently stressed to prevent either regain of turgor (leaf blades) or regrowth (leaf sheath bases) after rewatering. Deformation of the cell surface was a major response to cell volume reduction during stress. Folds occurred in the walls of cells in leaf blades which were just wilting. In severely stressed and damaged plants a range of cell shapes and deformations occurred characteristic of a particular cell type and often unlike the control cell shape.
ISSN:0305-7364
1095-8290
DOI:10.1093/oxfordjournals.aob.a087301