Effects of drought on photosynthetic characteristics of flag leaves of a newly-developed super-high-yield rice hybrid

Title:

Effects of drought on photosynthetic characteristics of flag leaves of a newly-developed super-high-yield rice hybrid

Creator:

Chen, G.-X., Liu, S.-H., Zhang, C.-J., and Lu, C.-G.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:d1fb531e-0e86-4364-9cf8-781926b65d4f
uuid:d1fb531e-0e86-4364-9cf8-781926b65d4f
issn:0300-3604
doi:10.1007/S11099-005-0015-0

Subject:

chloroplast ultrastructure, Hill-reaction, Oryza sativa, photophosphorylation, photosynthetic O2 evolution, membrane lipids, and water stress

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

We investigated responses of chloroplasts from flag leaves of a newly-developed super-high-yield rice (Oryza sativa L.) hybrid LiangYouPeiJiu (LYPJ) to water stress (withholding irrigation) during the grain-filling period. In the early stage of water stress (0-6 d) only the activity of Hill reaction was inhibited, whereas activities of photophosphorylation and Ca2+-ATPase, and ATP content were increased and peaked in the day 6 of withholding irrigation. In the late stage of water stress (6-12 d), the activities of photosynthetic O2 evolution, Hill reaction, photophosphorylation, and Ca2+- ATPase, and ATP content were significantly reduced. The membrane lipid content was sharply decreased, especially of sulfoquinovosyl-diacylglycerol (SQDG) and phosphatidylglycerol (PG). The changes in the ultrastructure of chloroplasts included mainly a decrease in number of grana and increase in number of osmiophilic granules. and G.-X. Chen ... [et al.].

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

573-578

Source:

Photosynthetica | 2004 Volume:42 | Number:4

Harvested from:

CDK

Metadata only:

false