Microbial Volatiles in Defense

2017 ◽  
pp. 45-60
Author(s):  
Monika ◽  
Khan Mohd. Sarim ◽  
S. S. Arya ◽  
S. Devi ◽  
Vikender Kaur ◽  
...  
Keyword(s):  
Microbial Volatiles

scholarly journals A Mass Spectrometry-Based Study Shows that Volatiles Emitted by Arthrobacter agilis UMCV2 Increase the Content of Brassinosteroids in Medicago truncatula in Response to Iron Deficiency Stress

Molecules ◽  
2019 ◽  
Vol 24 (16) ◽  
pp. 3011
Author(s):  
Idolina Flores-Cortez ◽  
Robert Winkler ◽  
Arturo Ramírez-Ordorica ◽  
Ma. Isabel Cristina Elizarraraz-Anaya ◽  
María Teresa Carrillo-Rayas ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Iron Deficiency ◽  
Medicago Truncatula ◽  
Stress Responses ◽  
Crop Yields ◽  
Abiotic Factors ◽  
Defense Responses ◽  
Iron Deficient ◽  
Arthrobacter Agilis ◽  
Microbial Volatiles

Iron is an essential plant micronutrient. It is a component of numerous proteins and participates in cell redox reactions; iron deficiency results in a reduction in nutritional quality and crop yields. Volatiles from the rhizobacterium Arthrobacter agilis UMCV2 induce iron acquisition mechanisms in plants. However, it is not known whether microbial volatiles modulate other metabolic plant stress responses to reduce the negative effect of iron deficiency. Mass spectrometry has great potential to analyze metabolite alterations in plants exposed to biotic and abiotic factors. Direct liquid introduction-electrospray-mass spectrometry was used to study the metabolite profile in Medicago truncatula due to iron deficiency, and in response to microbial volatiles. The putatively identified compounds belonged to different classes, including pigments, terpenes, flavonoids, and brassinosteroids, which have been associated with defense responses against abiotic stress. Notably, the levels of these compounds increased in the presence of the rhizobacterium. In particular, the analysis of brassinolide by gas chromatography in tandem with mass spectrometry showed that the phytohormone increased ten times in plants grown under iron-deficient growth conditions and exposed to microbial volatiles. In this mass spectrometry-based study, we provide new evidence on the role of A. agilis UMCV2 in the modulation of certain compounds involved in stress tolerance in M. truncatula.

scholarly journals Chemical diversity of microbial volatiles and their potential for plant growth and productivity

2015 ◽  
Vol 6 ◽  
Author(s):  
Chidananda Nagamangala Kanchiswamy ◽  
Mickael Malnoy ◽  
Massimo E. Maffei
Keyword(s):  
Plant Growth ◽  
Chemical Diversity ◽  
Microbial Volatiles

scholarly journals Microbial Volatiles: Small Molecules with an Important Role in Intra- and Inter-Kingdom Interactions

2017 ◽  
Vol 8 ◽  
Author(s):  
Kristin Schulz-Bohm ◽  
Lara Martín-Sánchez ◽  
Paolina Garbeva
Keyword(s):  
Small Molecules ◽  
Microbial Volatiles

Microbial volatiles: Prospects for plant defense and disease management

2021 ◽  
pp. 387-404
Author(s):  
Ajay Kumar ◽  
V. Yeka Zhimo ◽  
Antonio Biasi ◽  
Oleg Feygenberg ◽  
Shoshana Salim ◽  
...  
Keyword(s):  
Disease Management ◽  
Plant Defense ◽  
Microbial Volatiles

Response of Wild Spotted Wing Drosophila (Drosophila suzukii) to Microbial Volatiles

2019 ◽  
Vol 46 (8) ◽  
pp. 688-698 ◽  
Author(s):  
Eduardo Bueno ◽  
Kyle R. Martin ◽  
Robert A. Raguso ◽  
John G. Mcmullen ◽  
Stephen P. Hesler ◽  
...  
Keyword(s):  
Spotted Wing Drosophila ◽  
Drosophila Suzukii ◽  
Microbial Volatiles

scholarly journals Designing a species-selective lure based on microbial volatiles to target Lobesia botrana

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Sebastian Larsson Herrera ◽  
Péter Rikk ◽  
Gabriella Köblös ◽  
Magdolna Olívia Szelényi ◽  
Béla Péter Molnár ◽  
...  
Keyword(s):  
Lobesia Botrana ◽  
Future Research ◽  
Limiting Factor ◽  
Successful Implementation ◽  
Binary Blend ◽  
Research Papers ◽  
Economic Thresholds ◽  
Volatile Attractants ◽  
Female Attractant ◽  
Microbial Volatiles

AbstractSustainable, low impact control methods, including mating disruption and microbial insecticides against L. botrana have been available for decades. Yet, successful implementation has been restricted to only a few grapevine districts in the world. A limiting factor is the lack of a female attractant to either monitor or control the damaging sex. Volatile attractants for both female and male insects can be used to assess when L. botrana populations exceed economic thresholds, and to decrease the use of synthetic pesticides within both conventional and pheromone programs. Rather than using host-plant volatiles, which are readily masked by background volatiles released by the main crop, we tested the attractiveness of volatiles that signify microbial breakdown and more likely stand out against the background odour. A two-component blend of 2-phenylethanol (2-PET) and acetic acid (AA) caught significant numbers of both sexes. Catches increased with AA and, to a minimal extent, 2-PET loads. However, a higher load of 2-PET also increased bycatches, especially of Lepidoptera and Neuroptera. Major (ethanol, ethyl acetate, 3-methyl-1-butanol) or minor (esters, aldehydes, alcohols and a ketone) fermentation volatiles, did surprisingly not improve the attraction of L. botrana compared to the binary blend of 2-PET and AA alone, but strongly increased bycatches. The most attractive lure may thus not be the best choice in terms of specificity. We suggest that future research papers always disclose all bycatches to permit evaluation of lures in terms of sustainability.

scholarly journals Harnessing microbial volatiles to replace pesticides and fertilizers

2020 ◽  
Vol 13 (5) ◽  
pp. 1366-1376
Author(s):  
Gareth Thomas ◽  
David Withall ◽  
Michael Birkett
Keyword(s):  
Microbial Volatiles
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