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Restoration of Photosynthesis in Dried Tobacco Leaf Tissue
Author(s) -
GRAZIANI Y.,
LIVNE A.
Publication year - 1974
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1974.tb05004.x
Subject(s) - photosynthesis , epidermis (zoology) , dehydration , botany , tobacco leaf , biology , carbon fixation , horticulture , chemistry , biochemistry , anatomy , agricultural engineering , engineering
A comparison of 14 CO 2 fixation rates in dehydrating tobacco leaf tissue, either intact or epidermis‐free, shows that stomatal closure is the primary cause for photosynthetic reduction due to dehydration. Rehydration of the dried, epidermis‐free tissue was accompanied by restoration of photosynthetic activity. The restoration was not only affected by hydration level but was notably time‐dependent, apparently for reorganization of the photosynthetic apparatus.