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- Hays, D.B.; Rose, P.; Abrams, S.R.; Moloney, M.M.
- Journal of plant growth regulation 1996 v.15 no.1 pp. 5-11
- messenger RNA; germination; dose response; embryo (plant); aldehydes; isomers; gene expression; genes; esters; Brassica napus; mutants; abscisic acid; molecular conformation; alcohols
- ... We have examined the effects of stereochemically pure analogs of abscisic acid (ABA) on three responses in Brassica napus microspore embryos. The analogs used include modifications to natural (S-) (+)-ABA (=N-ABA) at the C-1 and C-1' positions. At the C-1 position, the carboxylic acid function was replaced with an alcohol, aldehyde, or methyl ester functional group, and at the chiral C-1' position ...
- Carl Andre; Richard P. Haslam; John Shanklin
- Proceedings of the National Academy of Sciences of the United States of America 2012 v.109 no.25 pp. 10107-10112
- Brassica napus; acetyl-CoA carboxylase; biosynthesis; canola; carbon; cell culture; crops; cytosol; dose response; enzyme activity; esters; free fatty acids; oils; oilseed crops; oleic acid; radiolabeling; seeds
- ... Plant seed oil represents a major renewable source of reduced carbon, but little is known about the biochemical regulation of its synthesis. The goal of this research was to identify potential feedback regulation of fatty acid biosynthesis in Brassica napus embryo-derived cell cultures and to characterize both the feedback signals and enzymatic targets of the inhibition. Fatty acids delivered via ...
- PubMed Central:
- Holbrook, L.; Tung, P.; Ward, K.; Reid, D.M.; Abrams, S.; Lamb, N.; Quail, J.W.; Moloney, M.M.
- Plant physiology 1997 v.114 no.2 pp. 419-428
- Helianthus annuus; Brassica napus; measurement; chemical degradation; dose response; jasmonic acid; gene expression; Triticum aestivum; Nicotiana tabacum; esters; stereochemistry; enzyme activity; chemical structure; seed germination; transgenic plants; cotyledons; proteinase inhibitors; reporter genes; chemical constituents of plants; chlorophyll; beta-glucuronidase
- ... The importance of the two chiral centers at C-3 and C-7 in the molecular structure of jasmonic acid in plant responses was investigated. We separated methyl jasmonate (MeJA) into (3R)- and (3S)-isomers with a fixed stereochemistry at C-3, but epimerization at C-7 is possible. The four isomers of the nonepimerizable analog 7-methyl MeJA were synthesized. These six esters and their corresponding aci ...