Auxin, one of the first identified and most widely studied phytohormones, has been and will
remain a hot topic in plant biology. After more than a century of passionate exploration, the …

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The phytohormone auxin controls many processes in plants, at least in part through its
regulation of cell expansion. The acid growth hypothesis has been proposed to explain …

The size of plant organs is highly responsive to environmental conditions. The plant's
embryonic stem, or hypocotyl, displays phenotypic plasticity, in response to light and …

Temperature is a major factor governing the distribution and seasonal behaviour of plants.
Being sessile, plants are highly responsive to small differences in temperature and adjust …

The plasma membrane (PM) H+-ATPase is an important ion pump in the plant cell
membrane. By extruding protons from the cell and generating a membrane potential, this …

The plant hormone auxin regulates numerous aspects of plant growth and development.
Early auxin response genes mediate its genomic effects on plant growth and development …

The promotive effect of auxin on shoot cell expansion provided the bioassay used to isolate
this central plant hormone nearly a century ago. While the mechanisms underlying auxin …

The family of small auxin up-regulated RNA (SAUR) genes is a family of auxin-responsive
genes with~ 60–140 members in most higher plant species. Despite the early discovery of …

Plant cells are embedded within cell walls, which provide structural integrity, but also
spatially constrain cells, and must therefore be modified to allow cellular expansion. The …