Photosynthetica 2001, 39(1):119-122 | DOI: 10.1023/A:1012412406727
Effects of Phytoplasma [Stolbur-Subgroup (Bois Noir-BN)] on Photosynthetic Pigments, Saccharides, Ribulose 1,5-Bisphosphate Carboxylase, Nitrate and Nitrite Reductases, and Photosynthetic Activities in Field-Grown Grapevine (Vitis vinifera L. cv. Chardonnay) Leaves
- 1 Istituto Agrario di San Michele all' Adige, San Michele all' Adige, Italy
In leaves of field-grown grapevine, the contents of chlorophyll, carotenoids, and soluble proteins and the activities of ribulose-1,5-bisphosphate carboxylase (RuBPC) and nitrate (NR) and nitrite (NiR) reductases were decreased in phytoplasma-infected leaves, but the contents of soluble sugars and total saccharides were markedly increased. In isolated thylakoids, phytoplasma caused marked inhibition of whole chain and photosystem 2 (PS2) activities. The artificial exogenous electron donor, diphenyl carbazide, significantly restored the loss of PS2 activity in infected leaves.
Additional key words: carotenoids; chlorophyll; electron transport; donor side; photosystem 1 and 2 activities
Published: March 1, 2001 Show citation
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Bertamini, M., & Nedunchezhian, N. (2001). Effects of Phytoplasma [Stolbur-Subgroup (Bois Noir-BN)] on Photosynthetic Pigments, Saccharides, Ribulose 1,5-Bisphosphate Carboxylase, Nitrate and Nitrite Reductases, and Photosynthetic Activities in Field-Grown Grapevine (Vitis vinifera L. cv. Chardonnay) Leaves. Photosynthetica, 39(1), 119-122. doi: 10.1023/A:1012412406727
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