CIL:12591

Micrograph of a semi-thick (1-2 µm) section of an infected maize leaf, with silver-enhanced immunogold labeling, that shows dark staining of corn stunt spiroplasma (CSS, Spiroplasma kunkelii, Class Mollicutes) aggregates in phloem tissue. The section was counter stained with toluidine blue. CIL:19129, from the same image group, is a labeled version of this. CSS is a wall-less procaryote that causes corn stunt disease and is biologically transmitted by some leafhopper species, e.g. Dalbulus maidis and D. gelbus (Hemiptera, Cicadellidae). Spiroplasma cells are limited by a unit membrane with no cell wall. They can be quasi-spherical, pleiomorphic or maintain a filamentous/spiral form. CSS multiplies in both plant and insect hosts and is transmitted with salivary secretions during feeding of the vector on new host plants. dditional related images from this contributor are available in the Library.

显微照片展示了经银增强免疫金标记的感染玉米叶半薄（1-2 µm）切片，可见韧皮部组织内玉米矮化螺原体（corn stunt spiroplasma, CSS, Spiroplasma kunkelii, 柔膜菌纲（Class Mollicutes））聚集体呈现深色染色。该切片经甲苯胺蓝复染。同图像组的CIL:19129为该图像的标注版本。玉米矮化螺原体为无细胞壁原核生物，可引发玉米矮化病，可通过部分叶蝉物种进行生物传播，例如玉米缢管叶蝉（Dalbulus maidis）和D. gelbus（半翅目（Hemiptera），叶蝉科（Cicadellidae））。螺原体细胞仅由单位膜包被，无细胞壁，其形态可为准球形、多形性或呈丝状/螺旋状。玉米矮化螺原体可在植物和昆虫宿主体内增殖，并在介体昆虫取食新宿主植物时随唾液分泌物传播。该供稿者的其他相关图像可在图库中获取。