A New Rapid and Effective Method for RNA Isolation from Litchi Tissues of Fruitlet and Abscission Zone A New Rapid and Effective Method for RNA Isolation from Litchi Tissues of Fruitlet and Abscission Zone Studies on Anatomical Structure and Chemical Composition in Prickles of Rosa hybrida Advances in Molecular Biology Study of Plant Organ Abscission Letting Go is Never Easy: Abscission and Receptor-Like Protein Kinases Requirement of KNAT1/BP for the Development of Abscission Zones in Arabidopsis thaliana