scholarly journals Abscisic Acid Accumulation Is Not Required for Proline Accumulation in Wilted Leaves

1987 ◽  
Vol 83 (4) ◽  
pp. 747-749 ◽  
Author(s):  
Cecil R. Stewart ◽  
Gary Voetberg
Keyword(s):  
Abscisic Acid ◽  
Proline Accumulation ◽  
Acid Accumulation

Applicability of abscisic acid and (or) proline accumulation as selection criteria for drought tolerance in Nicotiana tabacum

1994 ◽  
Vol 72 (10) ◽  
pp. 1535-1540 ◽  
Author(s):  
L. van Rensburg ◽  
G. H. J. Krüger
Keyword(s):  
Abscisic Acid ◽  
Drought Tolerance ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Proline Accumulation ◽  
Leaf Water ◽  
Cell Wall Elasticity ◽  
Drought Tolerant ◽  
Acid Accumulation ◽  
Selection Parameters

The efficacy of various aspects of abscisic acid and proline accumulation as potential selection parameters for drought tolerance in tobacco was evaluated under controlled conditions. The results indicated that both abscisic acid (though being less pronounced) and proline accumulate rapidly after a distinct threshold leaf water potential value has been reached and that probably because of their higher cell wall elasticity (0.23 and 0.28 MPa for the drought-tolerant cultivars GS46 and Elsoma, respectively, compared with 0.39 and 0.31 MPa for the drought-sensitive cultivars TL33 and CDL28, respectively) these threshold leaf water potential values are reached sooner in drought-tolerant cultivars. However, abscisic acid accumulation precedes proline accumulation in both the drought-tolerant and drought-sensitive cultivars. Proline concentrations increased sharply at a leaf water potential of ca. −1.27 MPa in the drought-tolerant cultivars and at a leaf water potential of ca. −1.50 MPa in the drought-sensitive cultivars. At a leaf water potential of −0.77 MPa the abscisic acid concentrations of all four cultivars were already significantly higher than those of their respective controls and were greater in the drought-tolerant cultivars. The leaf water potential value at which abscisic acid and proline start accumulating rapidly and the accumulated proline end concentrations are recommended as selection parameters for drought tolerance in tobacco. Key words: abscisic acid accumulation, cell-wall elasticity, drought stress, Nicotiana tabacum L., proline accumulation, selection parameters.

Effects of abscisic acid and temperature on erucic acid accumulation in oilseed rape (Brassica napus L.)

1997 ◽  
Vol 150 (4) ◽  
pp. 414-419 ◽  
Author(s):  
Jeroen A. Wilmer ◽  
Johannes P.F.G. Helsper ◽  
Linus H.W. van der Plas
Keyword(s):  
Abscisic Acid ◽  
Brassica Napus ◽  
Erucic Acid ◽  
Oilseed Rape ◽  
Brassica Napus L ◽  
Acid Accumulation

Proline accumulation in flooded and wilted sunflower and the effects of benzyladenine and abscisic acid

1975 ◽  
Vol 53 (23) ◽  
pp. 2893-2896 ◽  
Author(s):  
Robert L. Wample ◽  
J. Derek Bewley
Keyword(s):  
Abscisic Acid ◽  
Water Stress ◽  
Foliar Application ◽  
Proline Accumulation ◽  
Free Proline

Sunflower accumulates proline in its aerial and subterranean parts when subjected to water stress. Decreases in the proline pool on recovery are slow. Plants that wilted in darkness do not accumulate proline, and plants that are subjected to a 16-h photoperiod and are sprayed with benzyladenine also show reduced accumulation. Flooded plants show increases in their endogenous free-proline pool, which can be reduced by aeration of the roots or by foliar application of benzyladenine. Abscisic acid does not induce free-proline accumulation in unstressed plants.

scholarly journals Environmental Nitrate Stimulates Abscisic Acid Accumulation in Arabidopsis Root Tips by Releasing It from Inactive Stores

2016 ◽  
Vol 28 (3) ◽  
pp. 729-745 ◽  
Author(s):  
Christine A. Ondzighi-Assoume ◽  
Sanhita Chakraborty ◽  
Jeanne M. Harris
Keyword(s):  
Abscisic Acid ◽  
Root Tips ◽  
Arabidopsis Root ◽  
Acid Accumulation

QTL analysis to study the association between leaf size and abscisic acid accumulation in droughted rice leaves and comparisons across cereals

1997 ◽  
pp. 155-165 ◽  
Author(s):  
Stephen A. Quarrie ◽  
David A. Laurie ◽  
Jiahui Zhu ◽  
Claude Lebreton ◽  
Andrei Semikhodskii ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Qtl Analysis ◽  
Leaf Size ◽  
Acid Accumulation ◽  
Rice Leaves

Genetic and environmental effects on abscisic acid accumulation in leaves of field-grown maize

Euphytica ◽  
1994 ◽  
Vol 78 (1-2) ◽  
pp. 81-89
Author(s):  
S. Conti ◽  
P. Landi ◽  
M. C. Sanguineti ◽  
S. Stefanelli ◽  
R. Tuberosa
Keyword(s):  
Abscisic Acid ◽  
Environmental Effects ◽  
Acid Accumulation
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