Responses of two endemic species of Hippophae at the Qinghai-Tibet Plateau to elevated CO2 concentration

Title:

Responses of two endemic species of Hippophae at the Qinghai-Tibet Plateau to elevated CO2 concentration

Creator:

Ma, F., Xu, T. T., Ji, M. F., and Zhao, C. M.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:45bca922-b85d-4461-8101-b129762a0ced
uuid:45bca922-b85d-4461-8101-b129762a0ced
issn:0300-3604
doi:10.1007/s11099-015-0125-2

Subject:

fotosyntéza, photosynthesis, biomass allocation, leaf gas exchange, leaf properties, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

The responses of photosynthesis and growth to increasing CO2 concentration ([CO2]) were investigated in Hippophae gyantsensis and H. rhamnoides subsp. yunnanensis, which are endemic at the Qinghai-Tibet Plateau and phylogenetically related, but distributed parapatrically in divergent regions. Seedlings of the two species were grown at ambient [AC; 360 μmol(CO2) mol-1] and elevated [EC; 720 μmol(CO2) mol-1] [CO2] in growth chambers. The responses to EC were significantly different between the two species. EC induced an increase in photosynthesis, stomatal conductance, intrinsic water-use efficiency, apparent quantum efficiency, total dry mass, and a decrease in photorespiration rate, maximum carboxylation rate of Rubisco, and maximum electron transport rate in H. gyantsensis compared to those in H. rhamnoides subsp. yunnanensis. Moreover, a significant increase in leaf nitrogen content and a decrease in root/shoot ratio was also observed in H. gyantsensis. H. gyantsensis showed a significantly higher specific leaf area than that of H. rhamnoides through treatments. Relative to H. rhamnoides subsp. yunnanensis, H. gyantsensis showed a greater potential to increase photosynthesis and growth to cope with the increasing [CO2] and it might expand its distribution range in the future., F. Ma, T. T. Xu, M. F. Ji, C. M. Zhao., and Obsahuje seznam literatury

Language:

Multiple languages

Rights:

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

Coverage:

395-402

Source:

Photosynthetica | 2015 Volume:53 | Number:3

Harvested from:

CDK

Metadata only:

false