J Integr Plant Biol. ›› 2021, Vol. 63 ›› Issue (1): 241-250.DOI: 10.1111/jipb.13046

Special Issue: Development Light signaling

• Invited Expert Reviews • Previous Articles     Next Articles

Regulation of cytoskeleton‐associated protein activities: Linking cellular signals to plant cytoskeletal function

Na Lian1,2, Xinwei Wang1,2, Yanping Jing1,2* and Jinxing Lin 1,2*   

  1. 1 Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China.
    2 College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.

    *Correspondences: Yanping Jing (ypjing@bjfu.edu.cn, Dr. Jing is responsible for the distribution of the materials associated with this article); Jinxing Lin (linjx@ibcas.ac.cn)
  • Received:2020-09-21 Accepted:2020-12-01 Online:2020-12-04 Published:2021-01-01

Abstract: The plant cytoskeleton undergoes dynamic remodeling in response to diverse developmental and environmental cues. Remodeling of the cytoskeleton coordinates growth in plant cells, including trafficking and exocytosis of membrane and wall components during cell expansion, and regulation of hypocotyl elongation in response to light. Cytoskeletal remodeling also has key functions in disease resistance and abiotic stress responses. Many stimuli result in altered activity of cytoskeleton‐associated proteins, microtubule‐associated proteins (MAPs) and actin‐binding proteins (ABPs). MAPs and ABPs are the main players determining the spatiotemporally dynamic nature of the cytoskeleton, functioning in a sensory hub that decodes signals to modulate plant cytoskeletal behavior. Moreover, MAP and ABP activities and levels are precisely regulated during development and environmental responses, but our understanding of this process remains limited. In this review, we summarize the evidence linking multiple signaling pathways, MAP and ABP activities and levels, and cytoskeletal rearrangements in plant cells. We highlight advances in elucidating the multiple mechanisms that regulate MAP and ABP activities and levels, including calcium and calmodulin signaling, ROP GTPase activity, phospholipid signaling, and post‐translational modifications.

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