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PHOTOSYNTHETIC DECLINE IN GINKGO LEAVES DURING NATURAL SENESCENCE

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dc.contributor.author YANG, XIAN-SONG
dc.contributor.author CHEN, GUO-XIANG
dc.contributor.author YUAN, ZHONG-YUAN
dc.date.accessioned 2023-01-05T10:14:57Z
dc.date.available 2023-01-05T10:14:57Z
dc.date.issued 2013-10-12
dc.identifier.citation Yang, X. S., Chen, G. X., & Yuan, Z. Y. (2013). Photosynthetic decline in ginkgo leaves during natural senescence. Pakistan Journal of Botany, 45(5), 1537-1540. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/15793
dc.description.abstract Photosynthetic pigments, biochemical activities and chloroplast ultra-structure were investigated to survey the photosynthetic characteristics of ginkgo (Ginkgo biloba L.) leaves during natural senescence. During leaf senescence, the content of total chlorophyll decreased rapidly while the content of carotenoids changed little; the content of ATP, the activity of O2 evolution of chloroplasts, the electron transport activities, the activity of photo-phosphorylation and the activity of Ca2+-ATPase declined; the chloroplasts had damaged in membranes and fewer grana with loose stacks of thylakoids and more and larger osmiophilic granules. With the leaf senescence, the whole structure of chloroplasts became disorganized, the thylakoid membranes became disrupted, and chloroplast was completely disintegrated finally. In conclusion, photosynthetic abilities gradually decreased as the leaves senesced. en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Botanical Society en_US
dc.title PHOTOSYNTHETIC DECLINE IN GINKGO LEAVES DURING NATURAL SENESCENCE en_US
dc.type Article en_US


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