A
            <i>Eucalyptus</i>
            Pht1 Family Gene EgPT8 Is Essential for Arbuscule Elongation of
            <i>Rhizophagus irregularis</i>

Che, Xianrong; Wang, Sijia; Ren, Ying; Xie, Xianan; Hu, Wentao; Chen, Hui; Ming, Tang

doi:10.1128/spectrum.01470-22

Cited by 2 publications

(1 citation statement)

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“…PHT1 reportedly responds to P stress, as observed in S. lycopersicum [43] and Zea mays [66]. In addition, PHT1s, such as EgPT8 in R. irregularis [67], AsPT1 in A. sinicus [40], and ZEAma: Pht1;6 in Z. mays [68], are specifically induced during mycorrhization and have been found to be crucial for mycorrhizal P uptake. Notably, in the present study, the expression of SmPHT1;6 was markedly greater in AMF-inoculated roots than in non-inoculated roots.…”

Section: Discussionmentioning

confidence: 87%

Genome-Wide Identification and Characterization of the PHT1 Gene Family and Its Response to Mycorrhizal Symbiosis in Salvia miltiorrhiza under Phosphate Stress

Chen,

Bai,

Lin

et al. 2024

Genes

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Phosphorus (P) is a vital nutrient element that is essential for plant growth and development, and arbuscular mycorrhizal fungi (AMF) can significantly enhance P absorption. The phosphate transporter protein 1 (PHT1) family mediates the uptake of P in plants. However, the PHT1 gene has not yet been characterized in Salvia miltiorrhiza. In this study, to gain insight into the functional divergence of PHT1 genes, nine SmPHT1 genes were identified in the S. miltiorrhiza genome database via bioinformatics tools. Phylogenetic analysis revealed that the PHT1 proteins of S. miltiorrhiza, Arabidopsis thaliana, and Oryza sativa could be divided into three groups. PHT1 in the same clade has a similar gene structure and motif, suggesting that the features of each clade are relatively conserved. Further tissue expression analysis revealed that SmPHT1 was expressed mainly in the roots and stems. In addition, phenotypic changes, P content, and PHT1 gene expression were analyzed in S. miltiorrhiza plants inoculated with AMF under different P conditions (0 mM, 0.1 mM, and 10 mM). P stress and AMF significantly affected the growth and P accumulation of S. miltiorrhiza. SmPHT1;6 was strongly expressed in the roots colonized by AMF, implying that SmPHT1;6 was a specific AMF-inducible PHT1. Taken together, these results provide new insights into the functional divergence and genetic redundancy of the PHT1 genes in response to P stress and AMF symbiosis in S. miltiorrhiza.

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