CIL:19124

Electron micrograph of corn stunt spiroplasma (CSS, Spiroplasma kunkelii, Class Mollicutes) in sieve elements and other phloem cells of infected maize leaves. CIL:12586, from the same image group, is an unlabeled version of this image. 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. Additional images from this contributor are available in the Library.本图像为受侵染玉米叶片的筛管及其他韧皮部细胞中玉米矮化螺原体（corn stunt spiroplasma, CSS，*Spiroplasma kunkelii*，柔膜菌纲）的电子显微照片。同图像组中的CIL:12586为该图像的无标注版本。玉米矮化螺原体为无细胞壁原核生物，可引发玉米矮化病，可通过部分叶蝉类群进行生物传播，例如玉米铲头叶蝉（*Dalbulus maidis*）及*D. gelbus*（半翅目，叶蝉科）。螺原体细胞仅由无细胞壁的单位膜包被，可呈类球形、多形性或维持丝状/螺旋形态。玉米矮化螺原体可在植物与昆虫宿主体内增殖，并在介体昆虫取食新宿主植物时随唾液分泌物传播。该供稿人的其他图像可在本图库中获取。