Diminution of photosynthesis in rice (Oryza sativa L.) seedlings under elevated CO2 concentration and increased temperature

Title:

Diminution of photosynthesis in rice (Oryza sativa L.) seedlings under elevated CO2 concentration and increased temperature

Creator:

Panigrahi, S., Pradhan, M. K., Panda, D. K., Panda, S. K., and Joshi, P. N.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:95af3f19-5605-4c4e-899a-3dc033c4755e
uuid:95af3f19-5605-4c4e-899a-3dc033c4755e
issn:0300-3604
doi:10.1007/s11099-016-0190-1

Subject:

fotosyntéza, photosynthesis, zeaxanthin, violaxanthin, lutein, chlorophyll fluorescence, gas exchange, intrinsic water-use efficiency, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

The photosynthetic responses to elevated CO2 concentration (EC) at ambient and ambient +4°C temperature were aßsessed in the second leaf of rice (Oryza sativa L.) seedlings. The duration of different leaf developmental phases, as characterised by changes in photosynthetic pigment contents and photochemical potential, was protracted in the seedlings grown under EC. On the other hand, a temporal shift in the phases of development with an early onset of senescence was observed in the seedlings grown under EC at ambient +4°C temperature. The contents of carotenoids, ß-carotene, and xanthophyll cycle pigments revealed that EC downregulated the protective mechanism of photosynthetic apparatus against oxidative damages, whereas this mechanism assumed higher significance under EC at ambient +4°C temperature. We observed an enhancement in electron transport activity, photochemical potential, and net photosynthesis in spite of a loss in photostasis of photosynthesis under EC. On the other hand, the loss in photostasis of photosynthesis was exacerbated under EC at ambient +4°C temperature due to the decline in electron transport activity, photochemical potential, and net photosynthesis., S. Panigrahi, M. K. Pradhan, D. K. Panda, S. K. Panda, P. N. Joshi., and Seznam literatury

Language:

Multiple languages

Rights:

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

Coverage:

359-366

Source:

Photosynthetica | 2016 Volume:54 | Number:3

Harvested from:

CDK

Metadata only:

false