文献类型： 外文期刊

作者： Liu Li-qin ¹ ; Dong Yu ¹ ; Guan Jun-feng ¹ ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Genet & Physiol, Shijiazhuang 050051, Peoples R China

2.Hebei Normal Univ, Coll Life Sci, Shijiazhuang 050016, Peoples R China

关键词： pear;nitric oxide;cell wall material;fruit softening

期刊名称：AGRICULTURAL SCIENCES IN CHINA （ 影响因子：0.82； 五年影响因子：0.997 ）

ISSN： 1671-2927

年卷期： 2011 年 10 卷 7 期

页码：

收录情况： SCI

摘要： The effect of fumigation with 10, 20, and 30 mu L L(-1) nitric oxide (NO) was investigated to study the effects of NO on the quality of Yali pears during cold storage. The ethylene production, composition of cell walls, and cell-wall-modifying enzyme activities were measured on fruits which were fumigated with NO (20 mu L L(-1)). The results showed that NO not only reduced the peak value of ethylene production rate, the soluble sugar, soluble solid content, maintained higher firmness, starch, and NO content, but also retarded the degradation of covalent soluble pectin, accumulation of ionic soluble pectin and water soluble pectin. Moreover, NO fumigation decreased the activities of polygalacturonase (PG) and beta-galactosidase (beta-Gal) and delayed the peak of PG activity of fruits. Therefore, it indicated that NO fumigation could delay the softening and ripening of Yali pears.