Changes in the photosynthetic characteristics and photosystem stoichiometries in wild-type and Chl b-deficient mutant rice seedlings under various irradiances

Title:

Changes in the photosynthetic characteristics and photosystem stoichiometries in wild-type and Chl b-deficient mutant rice seedlings under various irradiances

Creator:

Yamazaki, J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:a0210311-d6b5-4b07-976f-8f9faae7008b
uuid:a0210311-d6b5-4b07-976f-8f9faae7008b
issn:0300-3604
doi:10.1007/s11099-010-0069-5

Subject:

botanika, botany, antenna size, Cl b-deficient mutant, photosystem stoichiometry, PSII heterogeneity, and rice (Oryza sativa L.)

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

By using a wild-type rice (Oryza sativa L. cv. Norin No. 8) and the chlorophyll (Chl) b-deficient mutant derived from Norin No. 8 (chlorina 11), the present study monitored the oxygen evolution, contents of Chl a and b, β-carotene, and lutein in leaf and the contents of cytochrome f, and the reaction centres of photosystem I (PSI) and photosystem II (PSII) in thylakoids. The oxygen evolution, maximal quantum yield of PSII (Fv/Fm) and Chl concentration remained constant in both Norin No. 8 and chlorina 11 under 5 and 2% of full sunlight for six days. On the other hand, on the thylakoid level, the PSII reaction centre of chlorina 11 was more stable even under high irradiance, while approximately 40% decrease in levels of the PSII reaction centre occurred under 2% of full sunlight for six days. However, under such conditions, by regulating the stoichiometry of active PSII and PSI centres, the light absorption balance in both rice types was adjusted between the two photosystems. The present study attempted to examine whether the light absorption balance between PSII and PSI is altered to effectively conduct photosynthesis in the wild-type and Chl b-deficient mutant rice seedlings. and J. Yamazaki.

Language:

Multiple languages

Rights:

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

Coverage:

521-529

Source:

Photosynthetica | 2010 Volume:48 | Number:4

Harvested from:

CDK

Metadata only:

false