文献类型： 外文期刊

第一作者： ZHU, K. A. I.

作者： ZHU, K. A. I.;ZHU, K. A. I.

作者机构：

关键词： Aphid; Biotic stresses; Aphis sacchari zehntner; Sorghum

期刊名称：PAKISTAN JOURNAL OF BOTANY （ 影响因子：1.101； 五年影响因子：1.066 ）

ISSN： 0556-3321

年卷期： 2022 年 54 卷 5 期

页码：

收录情况： SCI

摘要： Aphid damage is one of the most critical biotic stresses limiting sorghum production, worldwide. In this study, two sterile sorghum lines having aphid-resistant (APT) and aphid-sensitive (APS) phenotypes, along with eight hybrid lines were used to study the infestation and natural attack rates of aphids in three ecological zones. The results show that sorghum has a dominant genetic effect on aphid resistance, with aphid incidence ranging from 93.2% to 96.6% in the F-1 generation of crosses mated to APT sorghum sterile lines. APT vs APS transcriptome analysis suggested the ATP sorghum genotype may be able to stimulate defenses against aphid infestation, experienced less change in sugar and chlorophyll content than the APS genotype. The APT genotype also exhibited improved in vivo carbohydrate binding and endopeptidase inhibitor activity, which are two key biological metabolic pathways which are involved in inhibiting aphid feeding and growth, by converting glucose in organs to pyruvate in the cytoplasm via the glycolysis metabolic pathway, thereby reducing glucose content in tissues and creating an inhospitable environment for aphid growth.

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