The paper centers on stimulus-linked redistribution of the plant actin cytoskeleton across multiple response contexts.
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actin cytoskeleton redistribution in plant stimulus responses
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For the five highlighted plant response systems, there is reasonable knowledge about the inducing signals and the functions of the actin rearrangement.
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For each of these systems, there is reasonable knowledge about what signals induce the plant response and the function(s) of the actin rearrangement.
Plant responses to intrinsic and extrinsic stimuli can require cytoplasmic rearrangements coordinated by actin microfilaments and microtubules.
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In several examples, these responses necessitate rearrangements of the cytoplasm that are coordinated by a network of actin microfilaments and microtubules, dynamic polymers collectively known as the cytoskeleton.
The review focuses on five plant cellular responses in which the actin cytoskeleton redistributes following extracellular stimulation: pollen tube tip growth and self-incompatibility, root hair responses to bacterial nodulation factors, light-mediated plastid positioning, nonhost resistance to fungal attack, and guard cell shape and turgor changes.
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This review focuses on five different cellular responses in which the actin cytoskeleton redistributes following extracellular stimulation: pollen tube tip growth and the self-incompatibility response; root hair responses to bacterial nodulation factors; light-mediated plastid positioning; nonhost resistance to fungal attack; and guard cell shape and turgor changes.