Comparative study of two indoor microbial volatile pollutants, 2-Methyl-1-butanol and 3-Methyl-1-butanol, on growth and antioxidant system of rice (Oryza sativa) seedlings

Nguyen, Diem-Kieu; Nguyen, Tri-Phuong; Li, Yi-Rong; Ohme-Takagi, Masaru; Liu, Zin-Huang; Ly, Thach-Thao; Nguyen, Van-Anh; Trinh, Ngoc-Nam; Huang, Hao-Jen

doi:10.1016/j.ecoenv.2024.116055

Cited by 1 publication

(1 citation statement)

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“…Interestingly, we found that the treatment with 3-methylbutanol significantly augmented the abundance of the ion signal corresponding to 4-coumaric acid compared to control. Numerous studies underscore the physiological effects of 3-methylbutanol in plants, highlighting its activity as a potent compound capable of eliciting responses on its own [ 72 , 73 , 74 , 75 ]. Therefore, our results suggest that the combined influence of VOCs emitted by B. bassiana and 3-methylbutanol may trigger the accumulation of phenylpropanoids in plants, consequently affecting the feeding behavior of S. frugiperda larvae.…”

Section: Discussionmentioning

confidence: 99%

Volatile Semiochemicals Emitted by Beauveria bassiana Modulate Larval Feeding Behavior and Food Choice Preference in Spodoptera frugiperda (Lepidoptera: Noctuidae)

Ramírez-Ordorica,

Adame-Garnica,

Ramos-Aboites

et al. 2024

JoF

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Beauveria bassiana is an entomopathogenic fungus that parasitizes and kills insects. The role of volatile organic compounds (VOCs) emitted by B. bassiana acting as semiochemicals during its interaction with lepidopterans is poorly explored. Here, we studied the effect of VOCs from B. bassiana and 3-methylbutanol (as a single compound) on the feeding behavior of L2 larvae of Spodoptera frugiperda in sorghum plants. Additionally, we assessed whether fungal VOCs induce chemical modifications in the plants that affect larval food preferences. Metabolomic profiling of plant tissues was performed by mass spectrometry and bioassays in a dual-choice olfactometer. The results showed that the larval feeding behavior was affected by the B. bassiana strain AI2, showing that the insect response is strain-specific. Furthermore, 80 µg of 3-methylbutanol affected the number of bites. The larval feeding choice was dependent on the background context. Fragment spectra and a matching precursor ion mass of 165.882 m/z enabled the putative identification of 4-coumaric acid in sorghum leaves exposed to fungal VOCs, which may be associated with larval deterrent responses. These results provide valuable insights into the bipartite interaction of B. bassiana with lepidopterans through VOC emission, with the plant as a mediator of the interaction.

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Section: Discussionmentioning

confidence: 99%