大豆科学2017，Vol.36Issue(6)：927-931,5.DOI:10.11861/j.issn.1000-9841.2017.06.0927
不同铁效率大豆品种叶片和根系超微结构的比较研究
Comparative Study of Leaf and Root Ultrastructure of Different Iron Efficiency Soybean Varieties
摘要
Abstract
Pot experiment method was used to study the application of chelate iron fertilizer (Fe-EDDHA) on different iron efficiency soybean varieties.Then the ultrastructure of the leaves and roots of the two varieties were compared.The results showed that the iron-sensitive varieties was small,yellow leaf with no chelate iron fertilizer,however the iron-efficient varieties plant was slightly smaller but their leaf color showed little difference.The chlorophyll SPDA value of iron-efficient varieties had no significant difference under two treatments,the chlorophyll SPDA value of iron-sensitive varieties was significant lower than no chelate iron fertilizer and iron-efficient varieties.The number of mitochondria and chloroplast of iron-sensitive soybean had no difference,but the shape of chloroplast was not full and showed a long spindle,the number of starch granules in the chloroplast was small.The shape of starch granules in the chloroplast showed fiat shape.The number of mitochondria and chloroplast of iron-efficient soybean showed little difference,however the number of starch granules in the mesophyll cells was not significantly different and that of the shape of starch granules were bigger under the application of chelating iron fertilizer.The root cells of iron-sensitive soybean under no application of chelate iron fertilizer were with irregular shape,badly distorted cell wall,cellular protoplasm were ruptured and unevenly distributed.The nucleus and most organelles were disintegrating,however the structure of the cells under the treatment of iron was intact.The structure of the cells of iron-efficient soybean was not significantly different under two treatment but the cell inclusions were more abundant under the application of chelate iron fertilizer.The results indicated that:Iron had an effect on the plant size,leaf color,and cell ultrastructure of different iron efficiency soybean varieties,the iron-sensitive soybean had been affected more by iron element,however iron-efficient varieties may have better resistance to low iron mechanism so they were less affected by the iron element.关键词
大豆/超微结构/叶绿体/筛管伴胞复合体Key words
Soybean/Ultrastructure/Chloroplast/Sieve tube companion cell complex分类
农业科技引用本文复制引用
邱强,饶德民,赵婧,张伟,孟凡钢,于维,闫晓艳,张鸣浩..不同铁效率大豆品种叶片和根系超微结构的比较研究[J].大豆科学,2017,36(6):927-931,5.基金项目
吉林省科技厅自然科学基金(20150101100JC) （20150101100JC）
吉林省重大科技攻关项目(20170201001NY). （20170201001NY）
