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Conventional detection and quantification real-time PCR of the pks-1 gene of Chaetomium globosum
Journal of Basic Microbiology ( IF 3.1 ) Pub Date : 2020-03-02 , DOI: 10.1002/jobm.201900672
Youssuf A Gherbawy 1 , Eman G A E El-Dawy 1
Affiliation  

Chaetomium globosum is known as a potential biocontrol indicator against various soil and seedborne pathogens. Precise data are necessary for population monitoring of C. globosum for its effective use in agriculture. A sequence‐characterized amplified region marker has been applied for the detection of this biocontrol agent, which will help to detect C. globosum at the site of its application. Out of 17 isolates of C. globosum, only 8 isolates of C. globosum amplified a monomorphic band of 1,900 bp. C. globosum is known for producing chaetoglobosin A. The pks‐1 gene is unique in C. globosum in that it is involved in chaetoglobosin A production, melanin formation, and sporulation. Real‐time PCR of pks‐1 was used to compare the expressions of the pks‐1 gene and chaetoglobosin A biosynthesis and sporulation. It was found that the sporulation of C. globosum was associated with the levels of pks‐1 gene expression; Cg2 isolate showed high expression of the pks‐1 gene, 41.21%, and also produced a great number of spores and perithecia. The association between the pks‐1 gene expression and chaetoglobosin A production was estimated. The Pks‐1 gene was expressed by all C. globosum isolates except one isolate, C1, which is another species of Chaetomium. In addition, all C. globosum isolates produced chaetoglobosin A with different concentrations and did not express the same levels of pks‐1. This finding may be a result of the solvent type used in the extraction.

中文翻译:

球毛壳菌pks-1基因的常规检测和定量实时PCR

Chaetomium globosum 被认为是针对各种土壤和种子传播病原体的潜在生物防治指标。精确的数据对于 C. globosum 的种群监测以使其在农业中的有效利用是必要的。已应用序列表征的扩增区域标记来检测这种生物防治剂,这将有助于在其应用部位检测球状梭菌。在 17 个 C. globosum 分离株中,只有 8 个 C. globosum 分离株扩增了 1,900 bp 的单态带。C. globosum 以产生 chaetoglobosin A 而闻名。 pks-1 基因在 C. globosum 中是独一无二的,因为它参与了 chaetoglobosin A 的产生、黑色素形成和孢子形成。pks-1 的实时 PCR 用于比较 pks-1 基因和毛壳球蛋白 A 生物合成和孢子形成的表达。发现 C. globosum 与 pks-1 基因表达水平相关;Cg2 分离株显示出 pks-1 基因的高表达,41.21%,并且还产生了大量的孢子和包膜。估计了 pks-1 基因表达与毛壳球蛋白 A 产生之间的关联。Pks-1 基因在所有 C. globosum 分离株中表达,除了一个分离株 C1,C1 是另一种毛壳菌属。此外,所有 C. globosum 分离株都产生不同浓度的毛壳球蛋白 A,并且不表达相同水平的 pks-1。这一发现可能是提取中使用的溶剂类型的结果。估计了 pks-1 基因表达与毛壳球蛋白 A 产生之间的关联。Pks-1 基因在所有 C. globosum 分离株中表达,除了一个分离株 C1,C1 是另一种毛壳菌属。此外,所有 C. globosum 分离株都产生不同浓度的毛壳球蛋白 A,并且不表达相同水平的 pks-1。这一发现可能是提取中使用的溶剂类型的结果。估计了 pks-1 基因表达与毛壳球蛋白 A 产生之间的关联。Pks-1 基因在所有 C. globosum 分离株中表达,除了一个分离株 C1,C1 是另一种毛壳菌属。此外,所有 C. globosum 分离株都产生不同浓度的毛壳球蛋白 A,并且不表达相同水平的 pks-1。这一发现可能是提取中使用的溶剂类型的结果。
更新日期:2020-03-02
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