Recent Trends in Plant Physiology
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منابع مشابه
How Sphagnum bogs down other plants.
Recent research on the organo-chemical composition of Sphagnum and on the fate of its litter has further clarified how this plant builds acidic, nutrient-poor, cold and anoxic peat bogs. The bog environment helps Sphagnum to outcompete other plants for light. Its morphology, anatomy, physiology and composition make it an effective ecosystem engineer and at the same time benefit the plant in the...
متن کاملEmerging MAP kinase pathways in plant stress signalling.
Mitogen-activated protein kinase (MAPK) pathways transfer information from sensors to cellular responses in all eukaryotes. A surprisingly large number of genes encoding MAPK pathway components have been uncovered by analysing model plant genomes, suggesting that MAPK cascades are abundant players of signal transduction. Recent investigations have confirmed major roles of defined MAPK pathways ...
متن کاملMapping out the roles of MAP kinases in plant defense.
Arabidopsis contains 20 MAP kinase genes, but their roles in plant physiology have remained largely unknown because of a lack of mutants. Recent papers from two groups have shed new light on the function of two different MAP kinases. The Arabidopsis MPK4 gene appears to negatively regulate salicylic acid-mediated defense responses and positively regulate jasmonic acid-induced responses. The tob...
متن کاملRecent Trends in Archaeological Theory: Some Comments
This paper selectively reviews some recent themes in archaeological theory: a philosophical pragmatism, a turn to materiality, and understanding the past in the context of the present. It concludes with some reflective comments on the author’s Archaeological Theory: An Introduction, in advance of the third revised edition.
متن کاملPectin methylesterases: cell wall enzymes with important roles in plant physiology.
Pectin methylesterases catalyse the demethylesterification of cell wall polygalacturonans. In dicot plants, these ubiquitous cell wall enzymes are involved in important developmental processes including cellular adhesion and stem elongation. Here, I highlight recent studies that challenge the accepted views of the mechanism and function of pectin methylesterases, including the co-secretion of p...
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