桑青枯病原细菌寄生部位的研究  

A STUDY ON THE PARASITIC SITE OF THE PATHOGENIC BACTERIA IN MULBERRY INFECTED BY PSEUDOMONAS SOLANACEARUM

作　　者：丘醒球[1] 黄玉莲[2] 

机构地区：[1]华南农业大学农业生物系 [2]华南农业大学蚕桑系

出　　处：《华南农业大学学报》1990年第1期85-88,共4页Journal of South China Agricultural University

摘　　要：在具有轻度萎蔫症状的桑树(Morus alba)青枯病株的解剖观察中,发现病原菌(Psendomonas solanacearum)除寄生于病根的导管中外,也寄生在木质部薄壁细胞内;首次发现含有大量病原菌的异常薄壁组织;在茎的导管中尚未观察到细菌。但大部分导管具有侵填体。In diseased plants of mulberry trees with slight symptom of wilt, we found that the pathogenic bacteria (Pseudomonas Solanacearum) Parasitized not only the vessels of the diseased root,but also the xylem parenchyma cells. Abnormal parenchyma containing large amount of pathogenic bacteria was also observed for the first time. In the stem vessel system, no pathogenic bacteria were found; most of the vessels, however, contained tyloses.

关 键 词：桑树 青枯病 病理解剖 病原菌 

分 类 号：S888.719[农业科学—特种经济动物饲养]