Photosysytem 2 activities of hyper-accumulator dicranopteris dichotoma Bernh from a light rare earth elements mine

Title:

Photosysytem 2 activities of hyper-accumulator dicranopteris dichotoma Bernh from a light rare earth elements mine

Creator:

Wang, L. F., Ji, H. B., Bai, K. Z., Li, L. B., and Kuang, T. Y.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:773246c0-a3e7-4cf5-8ccd-f91f2c7174ef
uuid:773246c0-a3e7-4cf5-8ccd-f91f2c7174ef
issn:0300-3604
doi:10.1007/s11099-006-0007-8

Subject:

β-carotene, chlorophyll fluorescence, photosynthetic electron transport, photosystem 2, and thylakoid membrane

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The distribution of rare earth elements (REEs) in the fern Dicranopteris dichotoma Bernh plants from a light rare earth elements mine (LRM) and a non-mining (NM) area in Longnan county of Jiangxi province, China were investigated by means of inductively coupled plasma-mass spectrometry, transmission electron microscopy, and energy-dispersive X-ray microanalysis. The photosynthetic characteristics of D. dichotoma were studied by chlorophyll (Chl) a fluorescence kinetics. Contents of REEs in the lamina and the root of D. dichotoma were higher than those in soils, and were mainly distributed in lamina. A part of them was found in the chloroplast. By comparing with D. dichotoma from NM area, the efficiency of photosystem 2 photochemistry and electron transport rate were significantly enhanced in lamina of the plant from LRM because most of REEs deposits were distributed along cell wall, in vacuole, and in chloroplast. High contents of REEs in lamina did not decrease the photosynthetic activities in LRM plants of D. dichotoma. Besides, D. dichotoma could change its β-carotene content to avoid the damaging effect of high REEs content. and L. F. Wang ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

202-207

Source:

Photosynthetica | 2006 Volume:44 | Number:2

Harvested from:

CDK

Metadata only:

false