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Genome sequence of the hot pepper provides insights into the evolution of pungency in Capsicum species
The genome size of the hot pepper was approximately fourfold larger than that of its close relative tomato, and the genome showed an accumulation of Gypsy and Caulimoviridae family elements.
The MYB96 Transcription Factor Regulates Cuticular Wax Biosynthesis under Drought Conditions in Arabidopsis[W]
Results demonstrate that ABA-mediated MYB96 activation of cuticular wax biosynthesis serves as a drought resistance mechanism.
Advances in the understanding of cuticular waxes in Arabidopsis thaliana and crop species
Recent advances in the understanding of the biological functions of genes involved in cuticular wax biosynthesis, transport, and regulation of wax deposition from Arabidopsis and crop species are discussed, information on cuticular Wax amounts and composition in various organs of nine representative plant species are provided, and the important issues that need to be investigated are suggested.
Two Arabidopsis 3-ketoacyl CoA synthase genes, KCS20 and KCS2/DAISY, are functionally redundant in cuticular wax and root suberin biosynthesis, but differentially controlled by osmotic stress.
Findings indicate that KCS20 and KCS2/DAISY are functionally redundant in the two-carbon elongation to C(22) VLCFA that is required for cuticular wax and root suberin biosynthesis, however, their expression is differentially controlled under osmotic stress conditions.
Cuticular wax biosynthesis is up-regulated by the MYB94 transcription factor in Arabidopsis.
A R2R3-type MYB94 transcription factor activates Arabidopsis cuticular wax biosynthesis and might be important in plant response to environmental stress, including drought.
Disruption of Glycosylphosphatidylinositol-Anchored Lipid Transfer Protein Gene Altered Cuticular Lipid Composition, Increased Plastoglobules, and Enhanced Susceptibility to Infection by the Fungal…
Results indicated that LTPG1 contributed either directly or indirectly to cuticular lipid accumulation, and was more susceptible to infection by the fungus Alternaria brassicicola than the wild type.
The Role of Arabidopsis ABCG9 and ABCG31 ATP Binding Cassette Transporters in Pollen Fitness and the Deposition of Steryl Glycosides on the Pollen Coat[W]
Results indicate that steryl glycosides are critical for pollen fitness, by supporting pollen coat maturation, and that ABCG9 and ABCG31 contribute to the accumulation of this sterol on the surface of pollen.
Recent advances in cuticular wax biosynthesis and its regulation in Arabidopsis.
The aerial parts of land plants are covered with cuticular waxes that limit non-stomatal water loss and gaseous exchanges,and protect plants from ultraviolet radiation and pathogen attacks.They are…
Characterization of glycosylphosphatidylinositol-anchored lipid transfer protein 2 (LTPG2) and overlapping function between LTPG/LTPG1 and LTPG2 in cuticular wax export or accumulation in Arabidopsis…
- Hyojin Kim, S. Lee, H. J. Kim, M. Min, I. Hwang, M. Suh
- Biology, Environmental SciencePlant & cell physiology
- 1 August 2012
Results indicate that LTPG2 is functionally overlapped withLTPG/LTPG1 during cuticular wax export or accumulation and LTPG/ LTPG1 andLTPG2 are targeted to the plasma membrane via the vesicular trafficking system.
Arabidopsis 3-Ketoacyl-Coenzyme A Synthase9 Is Involved in the Synthesis of Tetracosanoic Acids as Precursors of Cuticular Waxes, Suberins, Sphingolipids, and Phospholipids1[W]
Comparing amino acid sequence homology and messenger RNA expression patterns of 21 Arabidopsis KCSs demonstrated that KCS9 is involved in the elongation of C22 to C24 fatty acids, which are essential precursors for the biosynthesis of cuticular waxes, aliphatic suberins, and membrane lipids, including sphingolipids and phospholipid.