Regulatory mechanisms of plastic development of heterorhizic lateral roots in rice

March 31, 2026Root ResearchOpen Access

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The research aims to elucidate the molecular mechanisms regulating the plastic development of lateral roots in rice under restricted root-zone conditions.
Induced L-type lateral root formation through seedling root tip excision
Analyzed mutant responses differing from wild-type
Conducted transcriptome analysis of S-type/L-type lateral root primordia
Employed semi-hydroponic phenotyping for agronomic assessments
Identified WOX transcription factors controlling primordium size antagonistically
Found auxin distribution in primordia influences size control, with OsWOX10 expression induced in L-type roots
Demonstrated L-type roots compensate for lost main root function, aiding root system and above-ground growth

Uncovers regulatory mechanisms controlling lateral root development in rice, suggesting insights for enhancing growth under limited conditions.

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Kawai et al. (2026) studied this question.

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