Does engineering abscisic acid biosynthesis in Nicotiana plumbaginifolia modify stomatal response to drought?

Functional convergence of oxylipin and abscisic acid pathways controls stomatal closure in response to drought.

Membranes are primary sites of perception of environmental stimuli. Polyunsaturated fatty acids are major structural constituents of membranes that also function as modulators of a multitude of signal transduction pathways evoked by environmental stimuli. Different stresses induce production of a distinct blend of oxygenated polyunsaturated fatty acids, "oxylipins." We employed three Arabidopsi...

Abscisic Acid biosynthesis and response.

Does abscisic acid affect strigolactone biosynthesis?

SUMMARY *Strigolactones are considered a novel class of plant hormones that, in addition to their endogenous signalling function, are exuded into the rhizosphere acting as a signal to stimulate hyphal branching of arbuscular mycorrhizal (AM) fungi and germination of root parasitic plant seeds. Considering the importance of the strigolactones and their biosynthetic origin (from carotenoids), we ...

Response of chickpea (Cicer arietinum L.) to terminal drought: leaf stomatal conductance, pod abscisic acid concentration, and seed set

Flower and pod production and seed set of chickpea (Cicer arietinum L.) are sensitive to drought stress. A 2-fold range in seed yield was found among a large number of chickpea genotypes grown at three dryland field sites in south-western Australia. Leaf water potential, photosynthetic characteristics, and reproductive development of two chickpea genotypes with contrasting yields in the field w...

Transcriptional Response of Structural and Regulatory Genes Involved in Isoprene Biosynthesis and its Relation to Essential Oil Biosynthesis in Response to Salicylic Acid and Abscisic Acid in Mentha piperita L.

Background: In peppermint, precursors for the biosynthesis of monoterpenes are provided by plastidial methyl-erythritol-phosphate (MEP) pathways. Objective: In order to increase our understanding of terpene metabolism in M. piperita, the effect of salicylic acid (SA) and abscisic acid (ABA) in the modulation of expression pattern of genes involved in essential oil biosynthesis and secretion wa...