Effect of cadmium on organization and photoreduction of protochlorophyllide in dark-grown leaves and etioplast inner membrane preparations of wheat

Title:

Effect of cadmium on organization and photoreduction of protochlorophyllide in dark-grown leaves and etioplast inner membrane preparations of wheat

Creator:

Boddi, B., A.R., and Lehoczki, E.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:557df218-3316-42fc-86ac-ee290c604c1d
uuid:557df218-3316-42fc-86ac-ee290c604c1d
urnnbn:urn:nbn:cz:aba007-000fok

Subject:

cadmium toxicity, Triticum, phototransformation, NADPH, fluorescence emission spectra, and chlorophyllide

Type:

model:internalpart and TEXT

Format:

print

Description:

The cadmium treatment of dark-grown leaves and isolated etioplast inner membranes of wheat resulted in a decrease of the amount of the 657 nm emitting (77 K fluorescence) protochlorophyllide (PChlide) form, a simultaneous increase of the 633 nm form and the appearance of a 641.5 nm emitting form. This effect did not occur if excess NADPH was added to the isolated membranes: these samples showed spectral properties identical to those of non-treated (control) samples. Inhibition of the PChlide phototransformation was observed in the cadmium-treated leaves and membranes, the irradiation resulted in the appearance of a smáli amount of chlorophyllide (Chlide) with characteristic emission band at 678 nm. If excess NADPH was added, the inhibition did not occur and flash irradiation resulted in formation of the 694 nm Chlide form similarly as in control plants.

Language:

Multiple languages

Rights:

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

Coverage:

411-420 and 93-102

Source:

Photosynthetica | 1995 Volume:31 | Number:3

Harvested from:

CDK

Metadata only:

false