Regulation of photosynthesis by brassinosteroids in plants
2018
Siddiqui, Husna | Hayat, Shamsul | Bajguz, Andrzej
Brassinosteroids (BRs) regarded as plant hormone are a class of naturally occurring polyhydroxylated sterol derivatives present in all plant species. Overall growth of the plant relies on the very basic and important process of photosynthesis. BRs are found capable of preventing the loss of photosynthetic pigments either by activating or inducing the synthesis of enzymes involved in chlorophyll biosynthesis. BRs play important role in maintaining PS II efficiency by stabilizing D1 protein. It overcomes the stomatal limitations and elevates the efficiency of photosynthetic carbon fixation. BRs also act at various levels of light and dark reactions leading to enhanced carbohydrate synthesis. Therefore, it becomes important to focus and collect information related to various effects of BRs on photosynthesis and its related attributes. The present review deals with the effect of BRs on photosynthesis under normal as well as stressful conditions.
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