The Effect of Orange Extract and Other Additives on Anthracnose of French Beans Caused by Colletotrichum lindemuthianum
The Effect of Orange Extract and Other Additives on Anthracnose of French Beans Caused by Colletotrichum lindemuthianum
复制标题
橙提取物及其他添加剂对炭疽病蚕豆炭疽病的防治效果
DOI：
10.1093/oxfordjournals.aob.a084393
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发表时间：
1970
期刊：
影响因子：
4.2
通讯作者：
A. Greenwood
中科院分区：
文献类型：
--
作者：
P. Mercer;R. Wood;A. Greenwood
橙子和胡萝卜提取液、花粉渗出液、蛋白胨、葡萄糖和酪蛋白氨基酸混合物对贫水炭疽菌分生孢子的萌发有明显的促进作用。尿素、葡萄糖和酪蛋白氨基酸单独作用不大，橙子提取物和葡萄糖/酪蛋白氨基酸混合物改变了病原菌萌发后的生长方式。随着这些添加剂浓度的增加，更多的孢子在越来越厚的芽管末端萌发附着胞，而不是直接没有或非常薄的芽管。当这些添加剂加入到置于下胚轴上的孢子悬浮液中时，几乎完全抑制了病斑的形成。其他添加剂，大大刺激孢子萌发并不影响发展的lesions.橙子提取物似乎控制疾病摆在首位，通过改变寄生虫的生长形式的下胚轴表面，而不是通过改变的易感性的主机，虽然这可能会发生later.The的影响，这些结果为控制疾病引起的这种和类似的真菌进行了讨论。
Orange and carrot extract, pollen diffusate, peptone, and a mixture of glucose and casamino acids greatly stimulated germination of conidia ofColletotrichum lindemuthianumwhich was poor in water. Urea and glucose and casamino acids separately had little effect.Orange extract and the glucose/casamino acids mixture altered the ways in which the pathogen grew after germination. With increasing concentration of these additives more spores germinated with appressoria at the ends of increasingly thicker germ tubes instead of more directly with no or very thin germ tubes. Large-diameter germ tubes with no appressoria were also formed.These additives almost completely suppressed formation of lesions when added to spore suspensions placed on hypocotyls. Other additives that greatly stimulated spore germination did not affect the development of lesions.Orange extract seems to control disease in the first place by changing the form of growth of the parasite on the hypocotyl surface and not by altering the susceptibility of the host, though this may happen later.The implications of these results for the control of diseases caused by this and similar fungi are discussed.