Changes in photosynthetic capacity and antioxidant enzymatic systems in micropropagated Zingiber officinale plantlets during their acclimation

Title:

Changes in photosynthetic capacity and antioxidant enzymatic systems in micropropagated Zingiber officinale plantlets during their acclimation

Creator:

Guan, Q. Z., Guo, Y. H., Sui, X. L., Li, W., and Zhang, Z. X.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:e2ca61e2-feba-4c8c-951a-beb40ed4bc4a
uuid:e2ca61e2-feba-4c8c-951a-beb40ed4bc4a
issn:0300-3604
doi:10.1007/s11099-008-0031-y

Subject:

antioxidative enzymes, chlorophyll content and fluorescence, chloroplast ultrastructure, ginger, dry mass, net photosynthetic rate, photochemical quenching, and plant height

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Ginger (Zingiber officinale Rosc.) plantlets were propagated in vitro and acclimated under different photosynthetic photon flux densities (60 and 250 µmol m-2 s-1 = LI and HI, respectively). Increases in chlorophyll (Chl) content and Chl a/b ratio were found under both irradiances. In vitro plantlets (day 0) exhibited a low photosynthesis, but chloroplasts from in vitro leaves contained well developed grana and osmiophillic globules. Photoinhibition in leaves formed in vitro was characterized by decrease of photochemical efficiency and quantum efficiency of photosystem 2 photochemistry in HI treatment during acclimation. The new leaves formed during acclimation in both treatments showed a higher photosynthetic capacity than the leaves formed in vitro. Also activities of antioxidant enzymes of micropropagated ginger plantlets changed during acclimation. and Q. Z. Guan ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

193-201

Source:

Photosynthetica | 2008 Volume:46 | Number:2

Harvested from:

CDK

Metadata only:

false