RNase H1s are associated with growth and development in both plants and animals, while the roles of RNase H1s in bryophytes have been rarely reported. Our previous data found that a member of the family, could regulate the development of by regulating the auxin. In this study, we further investigated the biological functions of and found may participate in response to heat stress by affecting the numbers and the mobilization of lipid droplets and regulating the expression of heat-related genes. The expression level of was induced by heat stress (HS), and we found that the overexpression plants (-OE) were more sensitive to HS. At the same time, -OE plants have a higher number of lipid droplets but with less mobility in cells. Consistent with the HS sensitivity phenotype in -OE plants, transcriptomic analysis results indicated that is involved in the regulation of expression of heat-related genes such as and . Taken together, these results provide novel insight into the functions of RNase H1s.
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| http://dx.doi.org/10.3390/ijms23169270 | DOI Listing |
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