Journal Article Research Support, Non-U.S. Gov't Plant Proteins Review rice B-lectin receptor-like kinase PID2 EC 2.3.2.27 Grain size Lectins Magnaporthe oryzae MicroRNAs Molecular mechanisms Oryza sativa RNA, Plant Rice Transcription Factors Transcription factors U-box E3 ubiquitin ligase OsPIE3 Ubiquitin-Protein Ligases Yield drought resistance molecular mechanism physiology qRT9 quantitative trait locus root length root thickness translocation ubiquitination degradation upland rice.