Abstract
The often widespread and serious Root-Knot Nematode (RKN) disease is an important soil-borne disease affecting tobacco production. This study aimed to understand micro-ecological changes caused by RKN disease and interactions between disease and rhizosphere soil fungal communities. The 18S rRNA gene sequencing was used to study changes in rhizosphere fungal community of tobacco plants having RKN disease. In June 2018, a paired comparison was performed between rhizosphere fungal community structures of healthy tobacco plants and those with RKN disease [...]
Highlights
Meloidogyne spp. is an important group of plant parasitic nematodes, having many species and a wide host range (Back et al, 2002; Jeger et al, 2018)
In June 2018, a paired comparison was performed between rhizosphere fungal community structures of healthy tobacco plants and those with Root-Knot Nematode (RKN) disease in Yuxi and Jiuxiang, Yunnan Province, China
The operational taxonomic units (OTUs) abundance and alpha-diversity of fungal communities in different samples are shown in table 2
Summary
Meloidogyne spp. is an important group of plant parasitic nematodes, having many species and a wide host range (Back et al, 2002; Jeger et al, 2018). Members including Meloidogyne incognita, Meloidogyne hapla, Meloidogyne javanica and Meloidogyne arenaria are causal agents of tobacco RKN disease, an important soil-borne disease that negatively impacts tobacco production. This desease occurs in 13 major tobacco producing areas in Yunnan, Henan and Shandong provinces of China. Flue-cured tobacco is an important economic crop in Yunnan, which contains one-third of the total planting area, and produces a corresponding yield in China. This region plays an important role in China’s tobacco industry (Tong et al, 2016). The RKN disease has become an important factor restricting the development of the Yunnan tobacco industry
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