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Water Stress in Plants
Author(s) -
RASMUSSEN OLE S.
Publication year - 1976
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.1399-3054.1976.tb03937.x
Subject(s) - abscisic acid , wilting , transpiration , lycopersicon , water stress , coleoptile , horticulture , petiole (insect anatomy) , botany , biology , agronomy , chemistry , photosynthesis , biochemistry , gene , hymenoptera
The abscisic acid (ABA) content was determined quantitatively in the leaves from wilted and unwilted tomato plants ( Lycopersicon esculentum Mill. CV. Revermun) by the use of the wheat coleoptile test and gas‐liquid chromatography (GLC). Plants which have received an insufficient daily water supply for 18 days showed adaptation to wilting conditions. The plants adjust to the added amount of water by regulating their water loss through transpiration. The concentration of ABA was not higher in the leaves of plants adapted to water stress than in plants that were watered abundantly. Wilted detached leaves and leaves from rapidly wilted intact plants showed the well‐known reaction by increasing the ABA level. A possible role of ABA in the early stages of the adaptation process is discussed.