Main Title |
Physiological and Biochemical Responses of Bush Bean ('Phaseolus vulgaris') to Ozone and Drought Stress. |
Author |
Bender, J. ;
Tingey, D. T. ;
Jaeger, H. J. ;
Rodecap, K. D. ;
Clark, C. S. ;
|
CORP Author |
Corvallis Environmental Research Lab., OR. ;Bundesforschungsanstalt fuer Landwirtschaft, Brunswick (Germany, F.R.). Inst. fuer Produktions- und Okotoxikologie. |
Publisher |
c1991 |
Year Published |
1991 |
Report Number |
EPA/600/J-91/143; |
Stock Number |
PB91-219014 |
Additional Subjects |
Air pollution effects(Plants) ;
Ozone ;
Drought ;
Biochemistry ;
Plant physiology ;
Dose-response relationships ;
Nutrients ;
Amino acids ;
Carbohydrates ;
Reprints ;
Bush beans ;
Phaseolus vulgarus
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB91-219014 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
8p |
Abstract |
Bush bean (Phaseolus vulgaris L.) plants were exposed to ozone (O3) episodes in open-top field chambers in early and late season studies at Corvallis, Oregon. Plants were grown in cultural systems that controlled plant water status. The 7-h seasonal mean O3 concentrations were 0.067 and 0.054 ppm for the early and late season experiments, respectively. At anthesis, part of the plants were subjected to a drought-stress treatment that was maintained for 14 days, after which it was relieved. Both O3 and drought-stress treatments affected physiological and biochemical processes in beans during their reproductive stages of development. Measurements of water potential, osmotic potential and relative water content revealed a mild leaf drought stress in plants grown under water deficit conditions. Drought stress increased the foliar concentrations of several nutrients (Mg, K, Fe, S, P), while O3 exposure had very little effect. At final harvest when plants had reached pod maturation, the concentrations of total soluble sugars were reduced by O3. Both O3 and drought stress significantly affected the sum of free amino acids. Of all amino acids quantified, proline showed the most remarkable increase (up to three-fold) to drought stress. Ozone exposure impaired osmoregulation to drought stress. (Copyright (c) 1991 by Gustav Fischer Verlag, Stuttgart.) |
Supplementary Notes |
Pub. in Jnl. of Plant Physiology, v137 p565-570 1991. Prepared in cooperation with Bundesforschungsanstalt fuer Landwirtschaft, Brunswick (Germany, F.R.). Inst. fuer Produktions- und Okotoxikologie. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Physiological and Biochemical Responses of Bush Bean ('Phaseolus vulgaris') to Ozone and Drought Stress. |
Category Codes |
68A; 98D |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
126923579 |
Origin |
NTIS |
Type |
CAT |