𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Does abscisic acid influence proline accumulation in stressed leaves?

✍ Scribed by Velamoor Rajagopal; A. Skytt Andersen

Publisher
Springer-Verlag
Year
1978
Tongue
English
Weight
399 KB
Volume
143
Category
Article
ISSN
0032-0935

No coin nor oath required. For personal study only.

✦ Synopsis

Root treatments of barley (Hordeum distichum L.) plants with 10(-7) to 10(-4) M abscisic acid (ABA) caused an increase in proline content, especially at higher concentrations, within 2-3 h. Even 3 h after the removal of ABA from the medium the plants continued to accumulate proline. The higher the concentration of the ABA, the higher was the proline level at 6 h. When the highest ABA concentration, 10(-4) M, was tested with polyethylene glycol (PEG) (-5.0 bars) in the medium, the ABA treatment resulted in a higher proline content than in control plants. The treatments "PEG alone" and "PEG + ABA" resulted in heavy accumulation of proline, especially, 3 h after releasing the plants from the stress. The proline content in PEG+ABA-treated plants was always higher than plants treated with PGE or ABA alone. In peas (Pisum sativum L. cv Alaska) the same trend occurred although to a lesser degree. These findings indicate an influence of ABA on proline accumulation in water-stressed plants.

πŸ“œ SIMILAR VOLUMES

Correlation between loss of turgor and a
Correlation between loss of turgor and accumulation of abscisic acid in detached leaves
✍ Margaret Pierce; Klaus Raschke πŸ“‚ Article πŸ“… 1980 πŸ› Springer-Verlag 🌐 English βš– 942 KB

Mature leaves of Phaseolus vulgaris L. (red kidney bean), Xanthium strumarium L. (cocklebur), and Gossypium hirsutum L. (cotton) were used to study accumulation of abscisic acid (ABA) during water stress. The water status of individual, detached leaves was monitored while the leaves slowly wilted, a

The relationship between stomatal resist
The relationship between stomatal resistance and abscisic-acid levels in leaves of water-stressed bean plants
✍ D. C. Walton; Eva Galson; M. A. Harrison πŸ“‚ Article πŸ“… 1977 πŸ› Springer-Verlag 🌐 English βš– 375 KB

Leaf water potentials of Phaseolus vulgaris L. plants exposed to a -3 . 0 bar root medium were reduced to between -7 and -9 bars within 25 rain and remained constant for the next several hours. This treatment led to considerable variation between leaves in both abscisic-acid (ABA) content and Rs, al

Levels of short-chain fatty acids and of
Levels of short-chain fatty acids and of abscisic acid in water-stressed and non-stressed leaves and their effects on stomata in epidermal strips and excised leaves
✍ C. M. Willmer; R. Don; W. Parker πŸ“‚ Article πŸ“… 1978 πŸ› Springer-Verlag 🌐 English βš– 707 KB

Straight-chain saturated fatty acids (C6-C11) and abscisic acid (ABA) accumulate in the leaves of Phaseohts vulgaris L. and Hordeum vulgare L. under water stress. ABA and certain of the fatty acids, particularly decanoic and undecanoic acid, can inhibit stomatal opening and cause stomatal closure in