Manganese Deficiency in Plants: The Impact on Photosystem II
- PMID: 27150384
- DOI: 10.1016/j.tplants.2016.03.001
Manganese Deficiency in Plants: The Impact on Photosystem II
Abstract
Manganese (Mn) is an essential plant micronutrient with an indispensable function as a catalyst in the oxygen-evolving complex (OEC) of photosystem II (PSII). Even so, Mn deficiency frequently occurs without visual leaf symptoms, thereby masking the distribution and dimension of the problem restricting crop productivity in many places of the world. Hence, timely alleviation of latent Mn deficiency is a challenge in promoting plant growth and quality. We describe here the key mechanisms of Mn deficiency in plants by focusing on the impact of Mn on PSII stability and functionality. We also address the mechanisms underlying the differential tolerance towards Mn deficiency observed among plant genotypes, which enable Mn-efficient plants to grow on marginal land with poor Mn availability.
Keywords: chlorophyll a fluorescence; deficiency; extrinsic proteins; manganese; photosystem II.
Copyright © 2016 Elsevier Ltd. All rights reserved.
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