在花期或花期之前测定蜜腺接种的棉花花朵和棉铃对随后黄曲霉种子感染的易感性程度。
The degree of susceptibility of nectary-inoculated cotton flowers and bolls to subsequent seed infection by Aspergillus flavus is determined at or before anthesis.
作者信息
Klich M A
机构信息
Southern Regional Research Center, U.S. Department of Agriculture, NEW Orleans, Louisiana 70179
出版信息
Appl Environ Microbiol. 1990 Aug;56(8):2499-502. doi: 10.1128/aem.56.8.2499-2502.1990.
In greenhouse and field studies, cotton (Gossypium hirsutum L.) flowers were inoculated with Aspergillus flavus at the involucral nectaries. Bolls developing from early-season flowers had significantly higher percentages of A. flavus-infected seed than did bolls from flowers formed later in the season. Seeds from bolls inoculated 2 weeks after anthesis had the same infection levels as those from flowers inoculated at anthesis. These results indicate that early-season flowers are predisposed to A. flavus infection and that the degree of susceptibility at anthesis is retained through early boll development.
在温室和田间研究中，在棉花（陆地棉）花朵的苞叶蜜腺处接种黄曲霉。与季节后期形成的花朵所结棉铃相比，季节早期花朵所结棉铃中被黄曲霉感染的种子百分比显著更高。开花后2周接种的棉铃中的种子，其感染水平与开花时接种的花朵中的种子相同。这些结果表明，季节早期的花朵易于感染黄曲霉，并且开花时的易感程度在棉铃早期发育过程中得以保持。
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