Linked Life Data

16665804

Source:http://linkedlifedata.com/resource/pubmed/id/16665804

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-6-29
pubmed:abstractText
Leaves of Flaveria brownii exhibited slightly higher amounts of oxygen inhibition of photosynthesis than the C(4) species, Flaveria trinervia, but considerably less than the C(3) species, Flaveria cronquistii. The photosynthetic responses to intercellular CO(2), light and leaf temperature were much more C(4)-like than C(3)-like, although 21% oxygen inhibited the photosynthetic rate, depending on conditions, up to 17% of the photosynthesis rate observed in 2% O(2). The quantum yield for CO(2) uptake in F. brownii was slightly higher than that for the C(4) species F. trinervia in 2% O(2), but not significantly different in 21% O(2). The quantum yield was inhibited 10% in the presence of 21% O(2) in F. brownii, yet no significant inhibition was observed in F. trinervia. An inhibition of 27% was observed for the quantum yield of F. cronquistii in the presence of 21% O(2). The photosynthetic response to very low intercellular CO(2) partial pressures exhibited a unique pattern in F. brownii, with a break in the linear slope observed at intercellular CO(2) partial pressure values between 15 and 20 mubar when analyzed in 21% O(2). No significant break was observed when analyzed in 2% O(2). When taken collectively, the gas-exchange results reported here are consistent with previous biochemical studies that report incomplete intercellular compartmentation of the C(3) and C(4) enzymes in this species, and suggest that F. brownii is an advanced, C(4)-like C(3)-C(4) intermediate.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Dec
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
85
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1063-7
pubmed:dateRevised
2010-9-14
pubmed:year
1987
pubmed:articleTitle
Photosynthesis in Flaveria brownii A.M. Powell : A C(4)-Like C(3)-C(4) Intermediate.
pubmed:affiliation
Department of Environmental, Population and Organismic Biology, University of Colorado, Campus Box 334, Boulder, Colorado 80309.
pubmed:publicationType
Journal Article