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L. Bates, R. Waldren, I. Teare (1973)
Rapid determination of free proline for water-stress studiesPlant and Soil, 39
C. Branquinho, Dennis Brown, F. Catarino (1997)
The cellular location of Cu in lichens and its effects on membrane integrity and chlorophyll fluorescenceEnvironmental and Experimental Botany, 38
R. Ronen, M. Galun (1984)
Pigment extraction from lichens with dimethyl sulfoxide (DMSO) and estimation of chlorophyll degradationEnvironmental and Experimental Botany, 24
H. Clijsters, F. Assche (2004)
Inhibition of photosynthesis by heavy metalsPhotosynthesis Research, 7
(1997)
Effects of Air Pollution on Cell Membrane Integrity , Spectral Reflectance and Metal and Sulfur Concentra tions in Lichens
D. Duncan, J. Widholm (1991)
Proline is not the primary determinant of chilling tolerance induced by mannitol or abscisic Acid in regenerable maize callus cultures.Plant physiology, 95 4
Jiunn‐Tzong Wu, M. Hsieh, L. Kow (1998)
ROLE OF PROLINE ACCUMULATION IN RESPONSE TO TOXIC COPPER IN CHLORELLA SP. (CHLOROPHYCEAE) CELLSJournal of Phycology, 34
K. Appenroth, Á. Keresztes, É. Sárvári, A. Jaglarz, W. Fischer (2003)
Multiple Effects of Chromate on Spirodela polyrhiza: Electron Microscopy and Biochemical InvestigationsPlant Biology, 5
J. Garty, Y. Karary, J. Harel (1992)
Effect of low pH, heavy metals and anions on chlorophyll degradation in the lichen Ramalina duriaei (de Not.) Bagl.Environmental and Experimental Botany, 32
B. Tripathi, S. Mehta, A. Amar, J. Gaur (2006)
Oxidative stress in Scenedesmus sp. during short- and long-term exposure to Cu2+ and Zn2+.Chemosphere, 62 4
S. Mehta, J. Gaur (1999)
Heavy‐metal‐induced proline accumulation and its role in ameliorating metal toxicity in Chlorella vulgarisNew Phytologist, 143
M. Rodríguez, L. Barsanti, V. Passarelli, V. Evangelista, V. Conforti, P. Gualtieri (2007)
Effects of chromium on photosynthetic and photoreceptive apparatus of the alga Chlamydomonas reinhardtii.Environmental research, 105 2
D. Livingstone (2001)
Contaminant-stimulated reactive oxygen species production and oxidative damage in aquatic organisms.Marine pollution bulletin, 42 8
Ayşe Baran, Ş. Baysal, A. Sukatar (2005)
Removal of Cr6+ from aqueous solution by some algae.Journal of environmental biology, 26 2 Suppl
M. Chettri, C. Cook, E. Vardaka, T. Sawidis, T. Lanaras (1998)
The effect of Cu, Zn and Pb on the chlorophyll content of the lichens Cladonia convoluta and Cladonia rangiformisEnvironmental and Experimental Botany, 39
Dr.-Ing. Baumbach (1996)
Effects of Air Pollution
S. Bhaskaran, Roberta Smith, Ronald Newton (1985)
Physiological changes in cultured sorghum cells in response to induced water stress : I. Free proline.Plant physiology, 79 1
J. Garty, Y. Cohen, N. Kloog, A. Karnieli (1997)
Effects of air pollution on cell membrane integrity, spectral reflectance and metal and sulfur concentrations in lichensEnvironmental Toxicology and Chemistry, 16
(1985)
Physi ological Changes in Cultured Sorghum Cells in Response to Induced Water Stress : 1
Brigitte Schobert (1977)
Is there an osmotic regulatory mechanism in algae and higher plants?Journal of theoretical biology, 68 1
(2003)
Effects of Copper on Wild and Tolerant Strains of the Lichen Photobiont Trebouxia erici and Possible Toler ance Mechanisms
M. Bačkor, D. Fahselt, R. Davidson, Charles Wu (2003)
Effects of Copper on Wild and Tolerant Strains of the Lichen Photobiont Trebouxia erici (Chlorophyta) and Possible Tolerance MechanismsArchives of Environmental Contamination and Toxicology, 45
Z. Krupa, T. Baszyński (1995)
Some aspects of heavy metals toxicity towards photosynthetic apparatus-direct and indirect effects on light and dark reactionsActa Physiologiae Plantarum, 17
C. Baker, N. Mock (1994)
An improved method for monitoring cell death in cell suspension and leaf disc assays using evans bluePlant Cell, Tissue and Organ Culture, 39
J. Garty, L. Weissman, O. Tamir, S. Beer, Y. Cohen, A. Karnieli, L. Orlovsky (2000)
Comparison of five physiological parameters to assess the vitality of the lichen Ramalina lacera exposed to air pollutionPhysiologia Plantarum, 109
Z. Hörcsik, V. Oláh, Á. Balogh, I. Mészáros, L. Simon, G. Lakatos (2006)
Effect of chromium (VI) on growth, element and photosynthetic pigment composition of Chlorella pyrenoidosa, 50
S. Lutts, J. Kinet, J. Bouharmont (1996)
Effects of various salts and of mannitol on ion and proline accumulation in relation to osmotic adjustment in rice (Oryza Sativa L.) callus culturesJournal of Plant Physiology, 149
Z. Hörcsik, László Kovács, R. Laposi, I. Mészáros, G. Lakatos, G. Garab (2007)
Effect of chromium on photosystem 2 in the unicellular green alga, Chlorella pyrenoidosaPhotosynthetica, 45
A. Shanker, C. Cervantes, H. Loza-Tavera, S. Avudainayagam (2005)
Chromium toxicity in plants.Environment international, 31 5
N. Bishnoi, L. Chugh, S. Sawhney (1993)
Effect of Chromium on Photosynthesis, Respiration and Nitrogen Fixation in Pea (Pisum sativum L.) SeedlingsJournal of Plant Physiology, 142
L. Kappen, B. Schroeter, T. Green, R. Seppelt (1998)
Chlorophyll a fluorescence and CO2 exchange of Umbilicaria aprina under extreme light stress in the coldOecologia, 113
In order to contribute to understanding of the response to metal stress, Ramalina farinacea (L.) Ach. was treated with different concentrations of chromium (VI) (5, 15, and 30 mM of K2CrO4) for 1, 3, and 24 h, and alterations in the photosystem II photosynthetic quantum yield, pigment content, integrity of chlorophyll, cell viability, and proline accumulation were investigated. Significant alterations of the photosynthetic quantum yield (F v/F m) ratio were observed in response to the increase in chromium concentration. The F v/F m ratio decreased in R. farinacea following 24-h treatment with 30 mM Cr6+ solution. In present study, in both control and other plant groups treated with 5 mM Cr6+, the Chl a/b ratio was approximately within the range of 2.0–3.5. However, this ratio significantly decreased for the samples treated with 15 (exposure period of 24 h) and 30 mM; (exposure periods of 3 and 24 h) Cr6+. We also showed that cell viability of samples treated with 15 and 30 mM Cr6+ significantly decreased. Accumulation of metal resulted in proline accumulation in R. farinacea thalli; however, when photodestructive effects on photosystem II occurred, proline intracellular concentration declined. On the basis of these results, we suggest that proline accumulation might not be the stress marker during heavy metal stress.
Russian Journal of Plant Physiology – Springer Journals
Published: Sep 2, 2010
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