| Range |
Table - link
|
| Organism |
Chlamydomonas reinhardtii |
| Reference |
Wykoff DD, Davies JP, Melis A, Grossman AR. The regulation of photosynthetic electron transport during nutrient deprivation in Chlamydomonas reinhardtii. Plant Physiol. 1998 May117(1):129-39. p.133 table IVPubMed ID9576782
|
| Comments |
"The decreased maximal electron flow through PSII is a
consequence of at least two processes. First, between 20
and 30% of the PSII reaction centers appear to be inactivated
because of photodamage. Quantitation of photodamage
is complicated by the inherent inaccuracies in quantitating
protein levels by western analysis and the potential
contribution of PSII QB-nonreducing centers to the loss of
Fv (which can result from an apparent increase in the F0
value). However, analyses of fluorescence using a very
low-intensity measuring beam (<0.01µmol photons/m^2/sec) had little effect on either F0 or Fv/Fmax (<5%), and the
measurements of QA levels (Table IV) demonstrated an
absolute loss of functional PSII (by approximately 30%).
These results indicate that nutrient limitation results in a
loss of active PSII centers." TAP=Trisacetate-P |
| Entered by |
Uri M |
| ID |
111120 |