Auxin metabolism and the modulation of plant growth

Batista-Silva, Willian; de Paiva Gonçalves, Júlia; Siqueira, Joao Antônio; Martins, Auxiliadora O.; Ribeiro, Dimas M.; Nunes-Nesi, Adriano; Zsögön, Agustin; Araújo, Wagner L.

doi:10.1016/j.envexpbot.2024.105917

Environmental and Experimental Botany

2024

DOI: 10.1016/j.envexpbot.2024.105917

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Auxin metabolism and the modulation of plant growth

Willian Batista-Silva,

Júlia de Paiva Gonçalves,

Joao Antônio Siqueira

et al.

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2024

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Cited by 3 publications

References 217 publications

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Actin Isovariant ACT2‐Mediated Cellular Auxin Homeostasis Regulates Lateral Root Organogenesis in Arabidopsis thaliana

Hanzawa,

Rahman,

Rahman

2024

Cytoskeleton

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Lateral root (LR) organogenesis is regulated by cellular flux of auxin within pericycle cells, which depends on the membrane distribution and polar localization of auxin carrier proteins. The correct distribution of auxin carrier proteins relies on the intracellular trafficking of these proteins aided by filamentous actin as a track. However, the precise role of actin in lateral root development is still elusive. Here, using vegetative class actin isovariant mutants, we revealed that loss of actin isovariant ACT8 led to increased lateral root formation. The distribution of auxin within pericycle cells was altered in act8 mutant, primarily due to the altered distribution of AUX1 and PIN7. Interestingly, incorporation of act2 mutant in act8 background (act2act8) effectively nullified the LR phenotype observed in act8 mutant, indicating that ACT2 plays an important role in LR development. To explore further, we investigated the possibility that the act8 mutant's LR phenotype and cellular auxin distribution resulted from ACT2 overexpression. Consistent with the idea, enhanced lateral root formation, altered AUX1, PIN7 expression, and auxin distribution in pericycle cells were observed in ACT2 overexpression lines. Collectively, these results suggest that actin isovariant ACT2 but not ACT8 plays a pivotal role in regulating source‐to‐sink auxin distribution during lateral root organogenesis.

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Actin Isovariant ACT2‐Mediated Cellular Auxin Homeostasis Regulates Lateral Root Organogenesis in Arabidopsis thaliana

Hanzawa,

Rahman,

Rahman

2024

Cytoskeleton

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B4 RAF-like kinases: players of rapid auxin response in algae and plants

Kushwaha,

Zheng,

Tripathi

et al. 2024

Plant Growth Regul

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Impact of green carbon dot nanoparticles on seedling emergence, crop growth and seed yield in blackgram (Vigna mungo L. Hepper)

Abinaya,

Raja,

Raja

et al. 2024

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Auxin metabolism and the modulation of plant growth

Cited by 3 publications

References 217 publications

Actin Isovariant ACT2‐Mediated Cellular Auxin Homeostasis Regulates Lateral Root Organogenesis in Arabidopsis thaliana

Actin Isovariant ACT2‐Mediated Cellular Auxin Homeostasis Regulates Lateral Root Organogenesis in Arabidopsis thaliana

B4 RAF-like kinases: players of rapid auxin response in algae and plants

Impact of green carbon dot nanoparticles on seedling emergence, crop growth and seed yield in blackgram (Vigna mungo L. Hepper)

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