Effect of ultraviolet-radiation and leakage of RB-86+ in guard-cells of Vicia-Faba
Negash, L ; Jensen, P and Björn, Lars Olof LU
(1987)
In Physiologia Plantarum
69(2).
p.200-204
- Abstract
- The effects of UV-C (254 nm), UV-A (365 nm) and broad-band UV (280-380 nm) on guard cells of Vicia faba L. cv. Long Pod were investigated in the presence of white light (450 .mu.mol m-2 s-1). UV-C (7 .mu.mol m-2 s-1) was found to cause leakage of 86Rb+ from guard cells, while UV-A (0.3 .mu.mol m-2 s-1) stimulated increased uptake in these cells. A relatively small stimulatory effect was observed by broad-band UV (3 .mu.mol m-2 s-1) during the first 30 min of irradiation with an apparent equilibration of influx and efflux thereafter. Leakage of 86Rb+ from guard cells continued despite the removal of UV-C and an increase in the amount of white light from 450 to 1500 .mu.mol m-2 s-1, suggesting that membranes were irreversibly damaged.... (More)
- The effects of UV-C (254 nm), UV-A (365 nm) and broad-band UV (280-380 nm) on guard cells of Vicia faba L. cv. Long Pod were investigated in the presence of white light (450 .mu.mol m-2 s-1). UV-C (7 .mu.mol m-2 s-1) was found to cause leakage of 86Rb+ from guard cells, while UV-A (0.3 .mu.mol m-2 s-1) stimulated increased uptake in these cells. A relatively small stimulatory effect was observed by broad-band UV (3 .mu.mol m-2 s-1) during the first 30 min of irradiation with an apparent equilibration of influx and efflux thereafter. Leakage of 86Rb+ from guard cells continued despite the removal of UV-C and an increase in the amount of white light from 450 to 1500 .mu.mol m-2 s-1, suggesting that membranes were irreversibly damaged. Irradiation of guard cells UV-C for 30, 45 and 90 min indicated that these cells began to be affected already by 30 min UV-C irradiation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/134563
- author
- Negash, L
; Jensen, P
and Björn, Lars Olof
LU
- organization
- publishing date
- 1987
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physiologia Plantarum
- volume
- 69
- issue
- 2
- pages
- 200 - 204
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85016899428
- ISSN
- 0031-9317
- DOI
- 10.1111/j.1399-3054.1987.tb04276.x
- language
- English
- LU publication?
- yes
- id
- 8e76285e-6018-4a59-b180-3d65344e49ca (old id 134563)
- date added to LUP
- 2016-04-01 16:13:37
- date last changed
- 2021-01-03 03:45:29
@article{8e76285e-6018-4a59-b180-3d65344e49ca,
abstract = {{The effects of UV-C (254 nm), UV-A (365 nm) and broad-band UV (280-380 nm) on guard cells of Vicia faba L. cv. Long Pod were investigated in the presence of white light (450 .mu.mol m-2 s-1). UV-C (7 .mu.mol m-2 s-1) was found to cause leakage of 86Rb+ from guard cells, while UV-A (0.3 .mu.mol m-2 s-1) stimulated increased uptake in these cells. A relatively small stimulatory effect was observed by broad-band UV (3 .mu.mol m-2 s-1) during the first 30 min of irradiation with an apparent equilibration of influx and efflux thereafter. Leakage of 86Rb+ from guard cells continued despite the removal of UV-C and an increase in the amount of white light from 450 to 1500 .mu.mol m-2 s-1, suggesting that membranes were irreversibly damaged. Irradiation of guard cells UV-C for 30, 45 and 90 min indicated that these cells began to be affected already by 30 min UV-C irradiation.}},
author = {{Negash, L and Jensen, P and Björn, Lars Olof}},
issn = {{0031-9317}},
language = {{eng}},
number = {{2}},
pages = {{200--204}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Physiologia Plantarum}},
title = {{Effect of ultraviolet-radiation and leakage of RB-86+ in guard-cells of Vicia-Faba}},
url = {{http://dx.doi.org/10.1111/j.1399-3054.1987.tb04276.x}},
doi = {{10.1111/j.1399-3054.1987.tb04276.x}},
volume = {{69}},
year = {{1987}},
}