Plastid tDRs Regulate Nutrient Stress Response in Chlamydomonas

A study in Plant Physiology reveals that plastid tRNA-derived small RNAs (tDRs) likely regulate *Chlamydomonas*' responses to nutrient stress. Strains with altered plastid tRNAAsn(GTT) genes exhibited defects under sulfur-deprived conditions, suggesting these chloroplast-origin tDRs are crucial for photosynthetic eukaryotes. These findings enhance understanding of tDR functions and how organisms adapt to environmental nutrient changes.