Inhibition of the photosynthesis in maize caused by manganese deficiency

Gong, X. and Liu, C. and Wang, Y. and Zhao, X. and Zhou, M. and Hong, M. and Wang, S. and Li, N. and Hong, F. (2010) Inhibition of the photosynthesis in maize caused by manganese deficiency. Cereal Research Communications, 38 (3). pp. 353-365. ISSN 0133-3720

Text crc.38.2010.3.6.pdf Restricted to Repository staff only until 30 September 2030. Download (232kB)

Abstract

The mechanism of the fact that Mn deficiency damages the photosynthesis of plants is not yet fully understood. The main aim of the study was to determine Mn deficiency effects in photophosphorylation and key enzymes of CO ₂ assimilation of maize. Maize plants were cultivated in Hoagland’s solution. They were subjected to Mn deficiency and to Mn administered in the Mn-deficient Hoagland’s media. The results showed that Mn deficiency was found to cause extensive declines in plant weight and chlorophyll a content, electron transport and oxygen-evolving rate, photophosphorylation rate, activities of Mg ²⁺ -ATPase, Ca ²⁺ -ATPase, Rubisco and Rubisco activase, and mRNA expressions of Rubisco and Rubisco activase of maize, but it only slightly affected chlorophyll b and carotenoid formation. However, Mn addition decreased the inhibition of the photosynthesis in maize caused by Mn deficiency.

Actions (login required)

Edit Item