Abstract
The cucumber (Cucumis sativus L.) plants were sprayed with 20 mM 5-aminolevulinic acid or distilled water (control) and incubated in dark for 14 hr. The thylakoid membranes prepared from the intact chloroplasts, isolated from the above plants in dark, were illuminated with low light intensity (100 W/m2) for 30 min. Due 10 photodynamic reactions, the photochemical function of photosystem II was damaged by 50% in treated thylakoids whereas it was only slightly (8%) affected in control thylakoids. The photosystem I was, however, not affected. The exogenous electron donors, MnCl2, diphenyl carbazide and NH2OH failed to restore the photosystem II activity suggesting that the photodynamic damage had taken place very close to photosystem II reaction center. Singlet oxygen scavenger, histidine, could protect the photosystem II activity while superoxide radical scavengers, superoxide dismutase and 1, 2-dihydroxybenzene-3, 5-disulphonic acid disodium salt, and hydroxyl radical scavenger, formate, failed to protect the same.
Similar content being viewed by others
References
Rebeiz CA, Montazer-Zouhoor A, Hopen H J & Wu SM, Enzyme Microb Technol, 6 (1984) 390.
Rebeiz CA, Montazer-Zouhoor A, Mayasich JM, Tripathy BC, Wu SM & Rebeiz CC, CRC Crit Rev Plant Sci, 6 (1988) 385
Tripathy BC & Chakraboriy N, Plant Physiol, 96 (1991) 761.
Chakraborty N & Tripathy BC, Plant Physiol, (1991) (In press).
Chakraborty N & Tripathy BC, J Biosci, 15 (1990) 199.
Tripathy BC & Mohanly P, Plant Physiol, 66 (1980) 1174.
Anderson JM & Boardman NK, Aust J Biol Sci, 17 (1964) 93.
Hsiao TC, Annu Rev Plant Physiol, 24 (1973) 519.
Tripathy BC, Bhatia B & Mohanty P, Biochim Biophys Acta, 638 (1981) 217.
Tripathy BC, Bhatia B & Mohanty P, Biochim Biophys Acta, 722 (1983) 88.
Honeycutt RC & Krogmann D, Plant Physiol, 49 (1972) 376.
Izawa S, Biochim Biophys Acta, 197 (1970) 328.
McCord JM & Fridovich I, J Biol Chem, 244 (1969) 6049.
Dhindsa RS, Plumbo-Dhindsa PL & Reid DM, Physiol Plant, 56 (1982) 453.
Shimazaki K, Sakaki T, Kondo N & Kiyoshi S, Plant Cell Physiol, 21 (1980) 1193.
Feierabend J & Winkelhusener T, Plant Physiol, 70 (1982) 1277.
Kar M & Feierabend J, Planta, 160 (1984) 385.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chakraborty, N., Tripathy, B.C. 5-Aminolevulinic Acid Induced Photodynamic Reactions in Thylakoid Membranes of Cucumber (Cucumis sativus L.) Cotyledons. J. Plant Biochem. Biotechnol. 1, 65–68 (1992). https://doi.org/10.1007/BF03262898
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03262898