ArticlePlant signaling & behavior2006
Actin turnover-mediated gravity response in maize root apices: gravitropism of decapped roots implicates gravisensing outside of the root cap.
Article in Plant signaling & behavior, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Are cyclic plant and animal behaviours driven by gravimetric mechanical forces?Journal of experimental botany · 2022Pooled it
- Effects of 1-International journal of molecular sciences · 2025Article
- Article
- Bundling up the Role of the Actin Cytoskeleton in Primary Root Growth.Frontiers in plant science · 2021Review
- Gravity Signaling in Flowering Plant Roots.Plants (Basel, Switzerland) · 2020Review
- The botanical multiverse of Peter Barlow.Communicative & integrative biology · 2019Review
- Article
- Striking the Right Chord: Signaling Enigma during Root Gravitropism.Frontiers in plant science · 2017Review
- Immunogold-EM analysis reveal brefeldin a-sensitive clusters of auxin in Arabidopsis root apex cells.Communicative & integrative biology · 2017Article
- Plant Science View on Biohybrid Development.Frontiers in bioengineering and biotechnology · 2017Review
- The role of Arabidopsis Actin-Related Protein 3 in amyloplast sedimentation and polar auxin transport in root gravitropism.Journal of experimental botany · 2016Article
- Review
- New insights into root gravitropic signalling.Journal of experimental botany · 2015Review
- Light and gravity signals synergize in modulating plant development.Frontiers in plant science · 2014Review
- Mechanisms of disruption of meristematic competence by microgravity in Arabidopsis seedlings.Plant signaling & behavior · 2014Review
- NO signaling is a key component of the root growth response to nitrate in Zea mays L.Plant signaling & behavior · 2014Article
- Root apex transition zone as oscillatory zone.Frontiers in plant science · 2013Article
- The 'root-brain' hypothesis of Charles and Francis Darwin: Revival after more than 125 years.Plant signaling & behavior · 2009Review
- Joining forces: the interface of gravitropism and plastid protein import.Plant signaling & behavior · 2009Article
- The anatomy of the chi-chi of Ginkgo biloba suggests a mode of elongation growth that is an alternative to growth driven by an apical meristem.Journal of plant research · 2007Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The dynamic actin cytoskeleton has been proposed to be linked to gravity sensing in plants but the mechanistic understanding of these processes remains unknown. We have performed detailed pharmacological analyses of the role of the dynamic actin cytoskeleton in gravibending of maize (Zea mays) root apices. Depolymerization of actin filaments with two drugs having different mode of their actions, cytochalasin D and latrunculin B, stimulated root gravibending. By contrast, drug-induced stimulation of actin polymerization and inhibition of actin turnover, using two different agents phalloidin and jasplakinolide, compromised the root gravibending. Importantly, all these actin drugs inhibited root growth to similar extents suggesting that high actin turnover is essential for the gravity-related growth responses rather than for the general growth process. Both latrunculin B and cytochalasin D treatments inhibited root growth but restored gravibending of the decapped root apices, indicating that there is a strong potential for effective actin-mediated gravity sensing outside the cap. This elusive gravity sensing outside the root cap is dependent not only on the high rate of actin turnover but also on weakening of myosin activities, as general inhibition of myosin ATPases induced stimulation of gravibending of the decapped root apices. Collectively, these data provide evidence for the actin turnover-mediated gravity sensing outside the root cap.
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