Evaluation of Streptomyces for biocontrol of Bipolaris sorokiniana and Sclerotinia homoeocarpa on the phylloplane of Poa pratensis
Evaluation of Streptomyces for biocontrol of Bipolaris sorokiniana and Sclerotinia homoeocarpa on the phylloplane of Poa pratensis
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链霉菌对草地早熟禾叶面双极菌和同核菌核菌的生物防治评价
DOI：
10.1111/j.1439-0434.1993.tb01406.x
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
N. Christians
中科院分区：
文献类型：
--
作者：
C. F. Hodges;D. A. Campbell;N. Christians
对几种链霉菌控制草地早熟禾（早熟禾）叶面上的核盘菌（美元斑病）和叶斑病（叶斑病）的能力进行了评估。评估的物种包括 S. diastaticus (S32)、S. galbus (S35) 和 S. hygrooscopyus（分离株 S13、S28）。所有评估均在草地早熟禾完整附着叶的上表皮上进行，拮抗作用被测量为链霉菌分离株在发病过程中防止接种 B. sorokiniana 或 S.homeocarpa 的叶子中叶绿素损失的能力。只有 S. hygrooscopyus (S13) 能有效防止接种 B. sorokiniana 或 S.homeocarpa 的叶子的感染和随后的叶绿素损失。吸水链球菌的分离株 S28 对两种病原体表现出不稳定的拮抗作用，具体取决于分离株的制备方法。糖化链霉菌和S. galbus 仅在完整培养物形式下才对同形果链霉菌具有拮抗作用。
Several species of Streptomyces were evaluated for their ability to control Sclerotinia homoeocarpa (dollar spot) and Bipolaris sorokiniana (leaf spot) on the phylloplane of Poa pratensis (Kentucky bluegrass). Species evaluated included S. diastaticus (S32), S. galbus (S35), and S. hygroscopicus (isolates S13, S28). All evaluations were conducted on the upper epidermis of intact attached leaves of P. pratensis, and antagonism was measured as the ability of Streptomyces isolates to prevent chlorophyll loss from leaves inoculated with B. sorokiniana or S. homoeocarpa during pathogenesis. Only S. hygroscopicus (S13) effectively prevented infection and subsequent chlorophyll loss from leaves inoculated with B. sorokiniana or S. homoeocarpa. Isolate S28 of S. hygroscopicus showed erratic antagonism of both pathogens, depending upon how the isolate was prepared for use. Streptomyces diastaticus and S. galbus were antagonistic to S. homoeocarpa only in whole culture form.