化学杂交剂诱导的雄性不育花药组织内源激素的变化  

The Changes of Endogenous Hormones Content in the Anther of Male Sterile Wheat induced by Chemical Hybridization Agents

作　　者：张爱民[1] 李英贤[1] 黄铁城 

机构地区：[1]中国农业大学植物遗传育种系

出　　处：《农业生物技术学报》1997年第1期64-71,共8页Journal of Agricultural Biotechnology

摘　　要：实验以Ｋ７８－１Ｂ和Ｔ０００２Ｂ为材料，分别用化学杂交剂ＳＣ２０５３和ＢＡＵ２诱导完全和部分雄性不育，测定了花粉败育过程中花药组织各种内源激素的变化。结果表明花药组织内源ＩＡＡ、ＤＨＺＲ水平都低于对照，ＺＲ和ＡＢＡ含量高于对照，变化幅度与喷施杂交剂的剂量密切相关。ＩＰＡ与ＧＡｓ的变化因小麦基因型，杂交剂种类及剂量而异，这说明化学杂交剂可能影响了内源激素的含量从而导致了雄性不育的发生。Complete male sterility and partial male sterility were induced on 2 cultivars K78 1B and T0002B by chemical hybridization agents SC2053 and BAU2. In the course of pollen abortion, the change of endogenous hormones was assayed. The results shows: The content of IAA (Indole 3 acetic acid), DHZR (Dihydro zeatin nucleotide) in the anther was reduced, but the content of ZR (zeatin nucleotide) and ABA (abscisic acid) was increased and the change extent was closely related to the dosage of chemical hybridization agents. The change of IPA (Indole propionic acid) and GA 3 (gibberellic acid) varies from the wheat genotype, the chemical hybridization agents and its dosage. These indicted that the chemical hybridization agents influence the content of endogenous hormones, which brought the occurence of male sterility.

关 键 词：化学杂交剂 雄性不育 内源激素 

分 类 号：S336[农业科学—作物遗传育种]