Stomatal Patterning: SERKs Put the Mouths in Their Right Place
نویسندگان
چکیده
Plants have stomata, mouth-like pores on their surface, to adjust to environmental changes such as temperature and humidity to ensure optimum physiology and metabolism. A new study adds a key player, SERK, to the signal-sensing apparatus to inform where stomata are to be formed on the leaf.
منابع مشابه
Differential Function of Arabidopsis SERK Family Receptor-like Kinases in Stomatal Patterning
Plants use cell-surface-resident receptor-like kinases (RLKs) to sense diverse extrinsic and intrinsic cues and elicit distinct biological responses. In Arabidopsis, ERECTA family RLKs recognize EPIDERMAL PATTERNING FACTORS (EPFs) to specify stomatal patterning. However, little is known about the molecular link between ERECTA activation and intracellular signaling. We report here that the SOMAT...
متن کاملThe too many mouths and four lips mutations affect stomatal production in Arabidopsis.
Stomata regulate gas exchange through the aerial plant epidermis by controlling the width of a pore bordered by two guard cells. Little is known about the genes that regulate stomatal development. We screened cotyledons from ethyl methanesulfonate-mutagenized seeds of Arabidopsis by light microscopy to identify mutants with altered stomatal morphology. Two mutants, designated too many mouths (t...
متن کاملDirect interaction of ligand-receptor pairs specifying stomatal patterning.
Valves on the plant epidermis called stomata develop according to positional cues, which likely involve putative ligands (EPIDERMAL PATTERNING FACTORS [EPFs]) and putative receptors (ERECTA family receptor kinases and TOO MANY MOUTHS [TMM]) in Arabidopsis. Here we report the direct, robust, and saturable binding of bioactive EPF peptides to the ERECTA family. In contrast, TMM exhibits negligibl...
متن کاملDysregulation of cell-to-cell connectivity and stomatal patterning by loss-of-function mutation in Arabidopsis chorus (glucan synthase-like 8).
Patterning of stomata, valves on the plant epidermis, requires the orchestrated actions of signaling components and cell-fate determinants. To understand the regulation of stomatal patterning, we performed a genetic screen using a background that partially lacks stomatal signaling receptors. Here, we report the isolation and characterization of chorus (chor), which confers excessive proliferati...
متن کاملControl of stomatal distribution on the Arabidopsis leaf surface.
Stomata regulate gas exchange and are distributed across the leaf epidermis with characteristic spacing. Arabidopsis stomata are produced by asymmetric cell divisions. Mutations in the gene TOO MANY MOUTHS (TMM) disrupt patterning by randomizing the plane of formative asymmetric divisions and by permitting ectopic divisions. TMM encodes a leucine-rich repeat-containing receptor-like protein exp...
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ورودعنوان ژورنال:
- Current Biology
دوره 25 شماره
صفحات -
تاریخ انتشار 2015