1. It has a broad range of hosts and mainly causes host symptoms such as mosaic, dwarf, green islands, chlorisis, yellowing, etc. So it can disturb the normal growth and development of plants.
它具有较为广泛的宿主，主要引起寄主花叶、矮化、绿岛、褪绿、黄化等症状，从而严重影响了植物的正常生长发育。
2. Anatomical structure: As a result of vacuolation and reduction of the number inclusion and of chloroplast, the leaf space between veins showed chlorisis and etiolation.
解剖结构：因缺素造成叶片脉间失绿和发黄部位是叶肉细胞内的叶绿体数目及内含物减少，液泡化明显的结果。