Department of Botany, Aligarh Muslim University, Aligarh, India.
Plant Signal Behav. 2012 Nov;7(11):1420-2. doi: 10.4161/psb.22079. Epub 2012 Sep 5.
Ethylene controls photosynthesis and induces tolerance of plants to metal stress. However, little is known about the interaction between ethylene, photosynthesis and sulfur (S) availability under cadmium (Cd) stress. Recently, we reported that ethylene controls photosynthesis by increasing glutathione (GSH) synthesis with sufficient-S availability under Cd stress. Plants treated with Cd were less sensitive to ethylene and showed photosynthetic inhibition. Ethylene sensitivity of plants was increased with exogenously-sourced ethylene or with sufficient-S application resulting in induced GSH synthesis and alleviation of photosynthetic inhibition by Cd. In this addendum we present some additional data indicating that ethylene regulates photosynthesis by reducing glucose (Glc) sensitivity, thus reducing the Glc-mediated photosynthetic repression.
乙烯通过在镉胁迫下增加谷胱甘肽（GSH）的合成来控制光合作用，然而，对于在镉胁迫下乙烯、光合作用和硫（S）供应之间的相互作用知之甚少。最近，我们报道了乙烯通过在镉胁迫下增加谷胱甘肽（GSH）的合成来控制光合作用，在 S 充足的情况下。在 Cd 处理的植物中对乙烯的敏感性降低，并且表现出光合作用抑制。用外源乙烯或充足的 S 处理植物，增加了植物对乙烯的敏感性，从而诱导 GSH 合成，并缓解 Cd 对光合作用的抑制。在本附录中，我们提供了一些额外的数据，表明乙烯通过降低葡萄糖（Glc）的敏感性来调节光合作用，从而减少 Glc 介导的光合作用抑制。
