nucellus embryo珠心胚
degeneration of nucellus珠心退化
degenerated nucellus which珠心组织
Depression and rupture appeared in tonoplast. Cell walls were getting thick in nucellus cells near the female gametophyte and polysaccharides accumulated abnormally.2.
另外不育系胚珠珠心组织细胞异常加厚,多糖物质出现异常积累。
参考来源 - 油松雌配子体游离核有丝分裂的细胞学研究N（名词） the central part of a plant ovule containing the embryo sac (含胚囊的)珠心