%A Chenghou Wu, Dongmei Li, Huiqiao Tian %T Isolation of Zygotes and Proembryos in Doritis pulcherrima %0 Journal Article %D 2012 %J Chinese Bulletin of Botany %R 10.3724/SP.J.1259.2012.00286 %P 286-291 %V 47 %N 3 %U {https://www.chinbullbotany.com/CN/abstract/article_3095.shtml} %8 2012-05-01 %X The isolation of zygotes and proembryos would provide invaluable material for the study of plant fertilization and embryogenesis. We isolated zygotes and proembryos by manual microdissection from Doritis pulcherrima embryo sacs with only one layer of integument cells after pretreatment combining enzymatic maceration with shaking to the ovules. The enzymatic maceration was with 0.7%–1.3% cellulase, 0.6%–1.0% pectinase, and 10% mannitol, pH5.8, for one-half to 3 hours. Suspensor haustorium was discovered on the micropylar end from early proembryo to maturing spherical proembryo stages. The successful isolation of zygotes and proembryos in D. pulcherrima provides a novel approach to study embryogenesis and is a valuable experimental tool for further detailed research at the cellular and molecular levels.