When the tea (Camellia sinensis) leaf water potential was -1.1 MPa (Moderate water deficit), there was 58% inhibition of photosynthesis accompanied by increased zeaxanthin, malondialdehyde, oxidized proteins and superoxide dismutase activity. When the leaf water potential was -2MPa (severe water deficit), there was nearly complete inhibition of photosynthesis apart from a decrease in chlorophylls, beta-carotene, neoxanthin and lutein. Water deficit at this level caused further conversion of violaxanthin to zeaxanthin, suggesting damage to the photosynthetic apparatus. There were consistent decreases in antioxidants and pyridine nucleotides, and accumulation of catalytic Fe, malondialdehyde and oxidized proteins. It is inferred that, in tea plants, the increase in catalytic Fe and the decrease in antioxidant protection may be involved in the oxidative damage caused by severe water deficit, but not necessarily in the incipient stress induced by moderate water deficit.

中文翻译：

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撤回：缺水引起茶（Camellia sinensis）植物的氧化损伤

当茶 (Camellia sinensis) 叶水势为 -1.1 MPa (中度缺水) 时，光合作用受到 58% 的抑制，同时玉米黄质、丙二醛、氧化蛋白和超氧化物歧化酶活性增加。当叶水势为-2MPa（严重缺水）时，除了叶绿素、β-胡萝卜素、新黄质和叶黄素减少外，光合作用几乎完全受到抑制。这个水平的水分不足导致紫黄质进一步转化为玉米黄质，表明光合装置受损。抗氧化剂和吡啶核苷酸持续减少，催化铁、丙二醛和氧化蛋白质的积累。据推测，在茶树中，