Details

Autor(en) / Beteiligte

• Yin, Nan
• Liu, Rui
• Zhao, Jian-Long
• Khan, Raja Asad Ali
• Li, Yan
• Ling, Jian
• Liu, Wei
• Yang, Yu-Hong
• Xie, Bing-Yan
• Mao, Zhen-Chuan

Titel

Volatile Organic Compounds of Bacillus cereus Strain Bc-cm103 Exhibit Fumigation Activity against Meloidogyne incognita

Ist Teil von

• Plant disease, 2021-04, Vol.105 (4), p.904-911

Ort / Verlag

United States

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• strain Bc-cm103 shows nematicidal activity and, therefore, has been used as a biological control agent to control the root-knot nematode . However, it remains unknown whether volatile organic compounds (VOCs) produced by strain Bc-cm103 are effective in biocontrol against . Therefore, in this study, we investigated the activity of Bc-cm103 VOCs against . The strain Bc-cm103 significantly repelled the second-stage juveniles (J2s) of . In vitro evaluation of VOCs produced by the fermentation of Bc-cm103 in a three-compartment Petri dish revealed the mortality rates of J2s as 90.8% at 24 h and 97.2% at 48 h. Additionally, evaluation of the ability of Bc-cm103 VOCs to suppress infection in a double-layered pot test showed that root galls on cucumber roots decreased by 46.1%. Furthermore, 21 VOCs were identified from strain Bc-cm103 by solid-phase microextraction gas chromatography-mass spectrometry, including alkanes, alkenes, esters, and sulfides. Among them, dimethyl disulfide (30.63%) and S-methyl ester butanethioic acid (30.29%) were reported to have strong nematicidal activity. Together, these results suggest that strain Bc-cm103 exhibits fumigation activity against .