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Article

THESEUS1 is a component of the receptor complex for establishing polytubey block in Arabidopsis.

Journal of integrative plant biology - 1 Jun 2026

Li Qiyun, Li Xuefei, Yuan Sufan, Feng Zhihui, Qu Li-Jia, Zhong Sheng

Abstract excerpt

THESEUS1 (THE1) is a component of the CrRLK1L-RALF signaling complex specifically responsible for establishing the polytubey block at the Arabidopsis septum. Genetic and biochemical analyses demonstrate that THE1, together with FERONIA, ANJ and HERK1, forms a receptor complex that senses pollen tube-derived RALF peptides, thereby establishing a barrier to prevent the emergence of multiple pollen tubes from the...

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PMID: 41645420
DOI: 10.1111/jipb.70172

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