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研究了大豆锈菌在大豆、豌豆、绿豆、蚕豆、菜豆和豇豆叶片上的致病反应。接种后锈菌均能在上述植物的叶片上形成侵染病斑,病斑形成时间和形态因物种而异;锈菌在大豆和豌豆叶片上可形成孢子堆,豌豆叶片上的孢子堆能释放出具有交叉侵染能力的夏孢子;锈菌在绿豆上可形成具有突起的病斑,在其它豆科叶片上仅形成过敏型枯死病斑,不形成孢子堆。组织学观察表明:大豆和豌豆叶片上孢子堆周围组织布满菌丝,孢子堆中有不同发育阶段的夏孢子;其他豆科植物叶片上的病斑中仅含有一些细胞碎片,未见孢子堆和夏孢子形成。
The pathogenic reaction of soybean rust on soybean, pea, mung bean, broad bean, kidney bean and cowpea was studied. After inoculation, the rusty fungi all formed the infected spots on the leaves of the above-mentioned plants. The time and morphological formation of the lesion varied according to the species. The rust could form a spore pile on the soybean and pea leaves, and the spore pile on the pea leaf could release Out of the cross-infectivity of the summer spores; rust on the mung bean can be formed with a protruding lesion, the other legumes in the formation of only acute-type blight spot, does not form a spore pile. Histological observations showed that the mycelium around the spore piles in soybean and pea leaves was covered with mycelial spores, and the spores had different stages of uredospores; in other legumes, the lesions contained only some cell debris and no spore And the formation of summer spores.