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Gravitropism is a universal plant response. It is initiated by the sensing of the primary signal (mass or pressure), which is then converted into chemical signals that are transduced and propagated in a precise spatial and temporal fashion, resulting in a differential growth response. Our thesis is that membrane lipids and lipid-mediated signaling pathways play critical roles in the initial signaling and in the establishment of polarity. In this review, we highlight results from recent literature and discuss the major questions that remain unanswered.


Caroline M Smith, Mintu Desai, Eric S Land, Imara Y Perera. A role for lipid-mediated signaling in plant gravitropism. American journal of botany. 2013 Jan;100(1):153-60

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PMID: 23258369

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