ath-miR399c-3p: Ath-mir399c-3p is a type of microRNA that is involved in phosphate starvation regulation. Seaweed extract treatment significantly reduces the expression of ath-mir399c-3p, along with other related genes (ath-miR399a, ath-miR399b, and ath-miR399c-5p) [PMC8000310]. The expression of ath-mir399c-3p is suppressed or not strongly influenced by ANE (aneurysm extract) and ANE+NaCl treatments, while NaCl treatment clearly induces the expression of this microRNA [PMC6205635]. The application of ANE in the presence of NaCl leads to a lower expression of ath-mir399c-3p compared to plants treated with NaCl alone [PMC6205635]. ANE and ANE+NaCl treatments reduce the expression of ath-mir399c-3p at 6 h and 12 h, while NaCl alone enhances its expression at both time points [PMC6205635]. The induction of AtWAK2 gene by ANE+NaCl treatment cannot be attributed to the expression changes in ath-mir399c-3p and 5p [PMC6205635]. Similar patterns are observed for other microRNAs (ath-miR399a, ath-miR399b, and miR827) with moderate effects from ANE and pronounced activation by salinity (NaCl alone) at one or both time points [PMC6205635]. Ath-mir399c-3p is significantly down-regulated along with other miRNAs in response to certain conditions related to seed germination [PMC8151434]. These miRNAs are found to be related to plant hormones based on KEGG and GO analysis [PMC8151434].