| Main Title |
Plant Protective Response to Enhanced UV-B Radiation under Field Conditions: Leaf Optical Properties and Photosynthesis. |
| Author |
Flint, S. D. ;
Jordan, P. W. ;
Caldwell, M. M. ;
|
| CORP Author |
Utah State Univ., Logan. Dept. of Range Science and Ecology Center.;Corvallis Environmental Research Lab., OR. |
| Year Published |
1985 |
| Report Number |
EPA/600/J-85/503; |
| Stock Number |
PB88-101555 |
| Additional Subjects |
Plant chemistry ;
Ultraviolet radiation ;
Photosynthesis ;
Plant physiology ;
Plant metabolism ;
Leaves(Botany) ;
Plant tissues ;
Radiation damage ;
Protection ;
Flavones ;
Field tests ;
Reprints ;
Vicia faba ;
Faba bean
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB88-101555 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
7p |
| Abstract |
Plants of Vicia faba were grown in the field during early to midsummer while receiving two levels of supplemental UV-B radiation. Light-saturated photosynthesis and stomatal diffusive conductance of intact leaves did not show any indications of UV-radiation damage. Supplemental UV treatment did cause increased concentrations of UV-absorbing flavonoid pigments in leaf tissues and decreased epidermal transmittance of UV radiation. While epidermal transmittance was reduced 30% under the low-UV treatment, the high-UV treatment failed to elicit as large a change. However, total amounts of flavonoids in other leaf tissues did increase in response to the high-UV treatment up to 12% greater per unit leaf area than for control plants. This may have been a major factor protecting underlying photosynthetic tissues. (Copyright (c) 1985 Pergamon Press Ltd.) |
| Supplementary Notes |
Pub. in Photochemistry and Photobiology, v41 n1 p95-99 1985. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Plant Protective Response to Enhanced UV-B Radiation under Field Conditions: Leaf Optical Properties and Photosynthesis. |
| PUB Date Free Form |
c1985 |
| Category Codes |
57C; 98D; 99E |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
733830253 |
| Origin |
NTIS |
| Type |
CAT |
