CORRELATION BETWEEN SIZE OF THE FRUIT AND THE RESISTANCE OF THE TOMATO SKIN TO PUNCTURE AND ITS RELATION TO INFECTION WITH MACROSPORIUM TOMATO COOKE
CORRELATION BETWEEN SIZE OF THE FRUIT AND THE RESISTANCE OF THE TOMATO SKIN TO PUNCTURE AND ITS RELATION TO INFECTION WITH MACROSPORIUM TOMATO COOKE
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果实大小与番茄皮抗穿刺能力的相关性及其与番茄大孢子虫感染的关系
DOI：
10.1002/j.1537-2197.1920.tb05566.x
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发表时间：
1920
期刊：
影响因子：
--
通讯作者：
C. E. Sando
中科院分区：
文献类型：
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作者：
J. Rosenbaum;C. E. Sando
其中一位作者已经证实，只要使用一定成熟度的果实（按大小衡量），就可以在未受伤的番茄果实上人工感染来自番茄的Macrosporium tomato Cooke'。2自然产生的问题是，在果实达到一定成熟度后，这种明显的免疫或抗性的原因是什么。Hawkins和Harvey最近回顾并总结了沿着这些路线进行的先前研究，总结如下：“很明显，有充分的证据表明，一些寄生植物通过机械地突破组织进入宿主植物。毫无疑问，有些真菌分泌的酶可以分解某些植物的细胞壁，从而能够穿过寄主的组织。同一位研究人员在马铃薯上进行腐霉感染研究后得出结论：“有相当多的证据表明，这种渗透的主要因素是真菌丝状体的生长压力，而白色麦考密克马铃薯对这种疾病的抵抗力是由于细胞壁比极敏感品种的细胞壁更能抵抗机械穿刺。“Blackman和Welsford4在他们对蚕豆上的灰葡萄孢的研究中获得的结果特别令人感兴趣。他们指出，“角质层的穿孔完全是由于整个芽管或芽管的特殊生长所施加的机械压力。“在本文报道的工作中，所获得的证据表明：I.虽然在分析新鲜和成熟果实时发现了化学差异，但这不是感染大孢子菌的限制因素。的
That artificial infection with Macrosporium tomato Cooke' from tomato on uninjured tomato fruit can be obtained, provided fruit of a certain maturity as measured by size is used, has been established by one of the writers.2 The question naturally arises as to the cause of this apparent immunity or resistance in the fruit after it reaches a certain maturity. Previous investigations along these lines have been recently reviewed and summarized by Hawkins and Harvey3 as follows: "It is apparent that there is good evidence that some parasitic plants make their way into their host plants by breaking through the tissues mechanically. There is no doubt that some fungi secrete enzymes which break down the cell walls of certain plants and are thus able to make their way through the tissues of their hosts." The same workers from their infection studies with Pythium on potato conclude: "There is considerable evidence that the main factor in this penetration is the growth pressure of the fungus filament, and the resistance of the white McCormick potatoes to this disease is due to cell walls that are more resistant to mechanical puncture than are the cell walls of extremely susceptible varieties." The results obtained by Blackman and Welsford4 in their studies with Botrytis cinerea on Vicia Faba are of special interest. They state that " the piercing of the cuticle is due solely to the mechanical pressure exerted by the germ tube as a whole or by the special outgrowth from it." In the work reported in this paper the evidence obtained shows that: I. While a chemical difference is found in the an*alysis of young and old fruits, this is not the limiting factor in infection with Macrosporium. The