Role of microRNA319 in creeping bentgrass salinity and drought stress response

Plant Signaling & Behavior
Man Zhou, Hong Luo

Abstract

The microRNA319 family (miR319) is one of the most conserved and ancient microRNA (miRNA) families in plants. Transgenic creeping bentgrass (Agrostis stolonifera) overexpressing a rice miR319, Osa-miR319a, exhibited enhanced salt and drought tolerance. A comprehensive hypothetical model about the role of miR319 in creeping bentgrass response to salinity and drought stress was proposed. Salinity and drought stress induces elevated expression of miR319, resulting in downregulation of at least 4 putative target genes of miR319 (AsPCF5, AsPCF6, AsPCF8, and AsTCP14) as well as a homolog of the rice NAC domain gene AsNAC60, and therefore positively contributing to plant abiotic stress response. Hormones might also regulate miR319 and its targets, and the expression level of the miR319 targets might be a balance of miR319-mediated target cleavage and hormone regulation of the targets. Furthermore, HKT gene families involved in salt exclusion mechanisms as well as mechanisms controlling the timing of gene expression network are also hypothesized to play an important role in this pathway.

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Citations

Feb 7, 2015·Trends in Plant Science·Jessica A LopezM Shahid Mukhtar
Jan 28, 2016·Scientific Reports·Shuai GaoBaohong Zhang
Nov 5, 2015·Scientific Reports·Sofia De PaoloSerena Aceto
Jun 29, 2017·Molecular Biology and Evolution·Oliver SmithRobin G Allaby
May 17, 2019·International Journal of Genomics·Yuzhu HuoZhen Sun
Oct 21, 2020·Plants·Edgar Baldemar Sepúlveda-GarcíaBlanca Estela Barrera-Figueroa
Nov 23, 2018·International Journal of Molecular Sciences·Zujun YinWuwei Ye
Apr 5, 2019·Plant Biotechnology Journal·Marcos Fernando BassoMaria Fatima Grossi-de-Sa
Aug 4, 2019·International Journal of Molecular Sciences·Kalaivani Nadarajah, Ilakiya Sharanee Kumar
Nov 9, 2018·The Science of the Total Environment·Jin XuVinay Kumar

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