Photoassimilatory and photorespiratory behaviour of certain drought tolerant and susceptible tea clones

Title:

Photoassimilatory and photorespiratory behaviour of certain drought tolerant and susceptible tea clones

Creator:

Jeyaramraja, P. R., Raj Kumar, R., Pius, P. K., and Thomas, Jibu

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:7372bde1-0d99-4cbe-b1ac-e71947c482c2
uuid:7372bde1-0d99-4cbe-b1ac-e71947c482c2
issn:0300-3604
doi:10.1023/B:PHOT.0000027523.51145.a0

Subject:

Camellia sinensis, catalase, net photosynthetic rate, photorespiration, RuBPC, RuBPO, and translocation

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Net photosynthetic rate (PN) in the mother leaves was higher in the drought tolerant (DT) clones of tea (Camellia sinensis) while liberation of the fixed 14C in light from the mother leaves was higher in the drought susceptible (DS) clones. The DT clones translocated more photosynthates to the crop shoots (three leaves and a bud) from the mother leaf than the DS clones. Concentrations of RuBP carboxylase (RuBPC) or oxygenase (RuBPO) had no relationship with the drought tolerant nature of tea clones but their ratio correlated with the same. DT tea clones had higher catalase activity that could scavenge the hydrogen peroxide formed in the photorespiratory pathway and thereby reduced photorespiration rate (PR). The ratio of RuBPC/RuBPO had a positive correlation with PN and catalase activity. Negative correlation between RuBPC/RuBPO and PR and between catalase activity and RuBPO activity was established. and P. R. Jeyaramraja ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

579-582

Source:

Photosynthetica | 2003 Volume:41 | Number:4

Harvested from:

CDK

Metadata only:

false