Movement of fluorescein into isolated caryopses of wheat and barley
Movement of fluorescein into isolated caryopses of wheat and barley
复制标题
荧光素进入小麦和大麦分离的颖果中的运动
DOI：
10.1111/1365-3040.ep11587641
复制
发表时间：
1983
期刊：
影响因子：
--
通讯作者：
K. Oparka
中科院分区：
文献类型：
--
作者：
H. Cook;K. Oparka
本文描述了共质体荧光示踪剂荧光素在小麦和大麦离体颖果中的运动。染料遵循先前从解剖学研究中提出的途径到达胚乳，即从韧皮部移动，通过色素链和珠心突起的细胞，然后染料从胚乳腔径向扩散到含淀粉的胚乳中。相比之下，荧光染料calcofluor白色M2R和ANS仍然局限于质外体，并未能通过'木质部不连续'在基部的颖果。
The movement of fluorescein, a symplastic fluorescent tracer, into isolated caryopses of wheat and barley is described. The dye followed the pathway to the endosperm which has been proposed previously from anatomical studies, namely a movement from the phloem, through cells of the pigment strand and nucellar projection, followed by a radial spread of the dye from the endosperm cavity into the starchy endosperm. By contrast, the fluorochromes calcofluor white M2R and ANS remained confined to the apoplast and failed to cross the ‘xylem discontinuity’ at the base of the caryopses.