Development of photochemical activities in mesophyll and bundle sheath chloroplasts of C4 and C3 Plants during seedling growth

Raghavendra, A. S. and Das, V. S. R. (1978) Development of photochemical activities in mesophyll and bundle sheath chloroplasts of C4 and C3 Plants during seedling growth. Plant Science Letters, 12 (2). pp. 355-360.

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Abstract

The photochemical activities of mesophyll and bundle sheath chloroplasts from Setaria italica, a NADP malic enzyme type C4 plant, were examined during seedling growth and were compared with the pattern of mesophyll chloroplasts from Oryza sativa, a C3 plant. The sheath chloroplasts of S. italica possessed remarkable activities of photosystem (PS) II mediated reactions (non-cyclic photophosphorylation, ferricyanide and NADP reductions) at early stages. They lost much of their PS II but retained PS I activity (cyclic photophosphorylation, NADP reduction with dichlorophenol indophenol-ascorbate) during seedling growth. Mesophll chloroplasts of S. italica developed both PS I and PS II. However the mesophyll chloroplasts of both S. italica and O. sativa were similar in that PS I activity was greater in younger leaves while older leaves possessed more PS II.

Item Type: Article
Author Affiliation: Sri Venkateswara University, Tirupati Andhra Pradesh, India
Subjects: Plant Production > Croping Systems
Agricultural Engineering
Crop Improvement > Seed Technology
Divisions: General
Depositing User: Library ICRISAT-InfoSAT
Date Deposited: 21 Feb 2012 08:57
Last Modified: 21 Feb 2012 08:57
URI: http://eprints.icrisat.ac.in/id/eprint/3074

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