College of Plant Protection, Hebei Agricultural University, Baoding, China.
College of Agronomy and Forestry, Hebei North University, Zhangjiakou, China.
Curr Microbiol. 2021 Jun;78(6):2173-2182. doi: 10.1007/s00284-021-02471-3. Epub 2021 Apr 20.
Fungal communities are associated with healthy peanut crops and good crop production, through the regulation of pod rot disease. Rotted peanut pods and their surrounding soil samples were collected from locations in northern China. Fungal species were identified by next-generation sequencing, using the conserved sequences of their internal transcribed spacer regions. Results showed that rotted pod samples were rich in the phyla Ascomycota and Basidiomycota, and soil samples also contained these, plus Chytridiomycota and Zygomycota. There were regional variations in the species of fungi related to peanut pod rot and its surrounding soil, between locations. Fungal species of Cryptococcus and Fusarium were less abundant in soil samples than in rotted pod samples, and were the main pathogenic fungi identified in our study. Soil total carbon, nitrogen, and potassium had a strong influence on the fungal community, and total phosphorous and calcium ions, together with soil pH, had a modest influence. Only Mycosphaerella and Gibberella were not significantly affected by these factors. These findings may be of some help to control pod rot disease and reduce the production loss of peanut crops.
真菌群落与健康的花生作物和良好的作物生产有关，通过调节荚腐病。从中国北方的不同地点采集了腐烂的花生荚和其周围的土壤样本。通过使用内部转录间隔区的保守序列进行下一代测序，鉴定了真菌种类。结果表明，腐烂的豆荚样本富含子囊菌门和担子菌门，土壤样本也含有这些门，外加壶菌门和接合菌门。与花生荚腐病及其周围土壤有关的真菌种类在不同地点之间存在地域差异。土壤样本中的隐球菌和镰刀菌种类比腐烂的豆荚样本中少，是我们研究中鉴定的主要致病真菌。土壤总碳、氮和钾对真菌群落有很强的影响，而总磷和钙离子以及土壤 pH 值有适度的影响。只有球腔菌属和赤霉属不受这些因素的显著影响。这些发现可能有助于控制荚腐病并减少花生作物的产量损失。
