Photosynthetica 2008, 46(3):395 | DOI: 10.1007/s11099-008-0071-3

Photosynthetic characteristics of a new yellow-green mutant with high photosynthetic rate in rice (Oryza sativa L.)

L. J. Ou1, Z. Chen1, X. J. Dai1, L. X. Deng1, Y. L. Qiu1, H. Li1, P. Liu1, M. Z. Liang1, S. Luan1, L. B. Chen1,*
1 College of Life Science, Hunan Normal University Changsha, Hunan, China

Contents of chlorophylls and carotenoids in yellow-green mutant Biao 810S were approximately half those in control type 810S. Biao 810S had fewer grana lamellae and looser structure than 810S, lower volume of starch granules in chloroplasts, but under high temperature and high irradiance the net photosynthetic rate (P N) of Biao 810S was higher than that of 810S. The chlorophyll fluorescence parameter Fv/Fm of Biao 810S was little higher and photochemical quenching qP was obviously higher than those of 810S. No significant differences in P N and biomass were observed in their hybrid combination. The yellow-green mutant phenotype may be a useful genetic marker of P(T)GMS rice used for hybrid seed production.

Additional key words: biomass; chlorophyll fluorescence; chloroplast ultrastructure; photochemical quenching; respiration rate; starch granules

Received: September 20, 2007; Accepted: March 14, 2008; Published: September 1, 2008  Show citation

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Ou, L.J., Chen, Z., Dai, X.J., Deng, L.X., Qiu, Y.L., Li, H., ... Chen, L.B. (2008). Photosynthetic characteristics of a new yellow-green mutant with high photosynthetic rate in rice (Oryza sativa L.). Photosynthetica, 46(3), 395. doi: 10.1007/s11099-008-0071-3
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