人工诱导小麦结瘤的研究

STUDY OF PARANODULE INDUCED BY 2,4D ON WHEAT ROOTS

对人工诱导小麦结瘤进行了研究．研究表明，在一定的培养条件下，以２，４－Ｄ诱导，豇豆根瘤菌侵染，小麦根部能形成大量的瘤状结构，这种结构类似于豆科根瘤，不仅有大量的分生细胞，而且还有一定数量的根瘤菌．这些细菌主要位于胞间隙中．在我们的实验条件下，瘤状结构的形成对小麦生长有一定的抑制作用．

Researches on wheat paranodules are reported. The results show that under certain cultural and 2,4D inducation conditions, R.leguminosarm can infect wheat and form a lot of paranodules on their roots. The structure is somewhat like that of the root nodules in legume, in which there are not only a great quantity of meristematic cells, but also many cells of R.leguminosarm that mainly locate in intracellular spaces. The paranodules have some inhibitions on the growth of wheat seedlings and roots.