Composición química de volátiles de hojas de caña de azúcar y pastos mediante cromatografía de gases

Ramírez-Medorio, Nelson José; Hernández‐Rosas, Francisco; Osorio-Acosta, Francisco; López-Collado, José; Figueroa-Rodríguez, Katia A.; Amante-Orozco, Alejandro

doi:10.29312/remexca.v0i22.1864

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…This aspect has been previously reported in different species (Ramírez-Medorio et al 2019). This could allow relating the presence of some compounds with the differential response detected in adult antixenosis and oviposition of Z. subfasciatus, since some authors mention that volatile compounds act as feeding and oviposition deterrents in pest insects (Ignacimuthu et al 2011;Hijaz et al 2016).…”

Section: Identification Of Candidate Volatile Compounds With Insectic...supporting

confidence: 52%

“…The differences found in the chromatograms could be related to the odors emitted by beans of the different genotypes and to the antixenosis detected in 'G11051' to adults of Z. subfasciatus, since these compounds can be detected by insects. In this regard, it is noted that the variation in the emission of volatiles could be linked to genetic factors (Ramírez-Medorio et al 2019).…”

Section: Identification Of Candidate Volatile Compounds With Insectic...mentioning

confidence: 99%

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Metabolomics of common bean (Phaseolus vulgaris L.) antixenosis to the Mexican weevil (Zabrotes subfasciatus Boh.)

Lamz-Piedra,

Jiménez-Galindo,

Olivas-Orozco

et al. 2024

J Plant Dis Prot

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Zabrotes subfasciatus (Boheman) is one of the main pests of storage beans, affecting common bean (Phaseolus vulgaris L.) in tropical world regions. The aim of this study was to evaluate antixenosis of two P. vulgaris genotypes to Z. subfasciatus and the emission of volatile compounds from seeds of these genotypes. Antixenosis in adults and oviposition was evaluated using the obligate antibiosis test, on 'G11051' and 'ICA Pijao' genotypes of common bean to Z. subfasciatus. The volatile compounds of their seeds related to antixenosis were also evaluated. The number of adult insects away from seeds, the percentage of eggs in seeds and the container and the number of total eggs were counted. The presence of volatile compounds was determined by headspace solid-phase microextraction coupled with gas chromatography -mass spectrometry (HS-SPME-GC-MS). Genotype 'G11051' showed higher adult antixenosis (80 % non-preference) and antixenosis by oviposition on their seeds than 'ICA Pijao' genotype which showed only 11 % repellency. Significant statistical differences were found in the volatile compounds detected. 'G11051' showed 65 compounds and 22 specific to this genotype, while in 'ICA Pijao', 53 compounds were detected, eight of which were specific to this genotype. Of these, dimethyl disulfide, limonene, (E)-2-hexenal and hexanal showed known antixenotic activity.

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Section: Identification Of Candidate Volatile Compounds With Insectic...supporting

confidence: 52%

Section: Identification Of Candidate Volatile Compounds With Insectic...mentioning

confidence: 99%

Metabolomics of common bean (Phaseolus vulgaris L.) antixenosis to the Mexican weevil (Zabrotes subfasciatus Boh.)

Lamz-Piedra,

Jiménez-Galindo,

Olivas-Orozco

et al. 2024

J Plant Dis Prot

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Metabolomics of common bean (Phaseolus vulgaris L.) antixenosis to the Mexican weevil (Zabrotes subfasciatus Boh.)

Piedra

Galindo²,

Olivas³

et al. 2023

Preprint

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Zabrotes subfasciatus (Boheman) is one of the main pests of storage beans, affecting common bean (Phaseolus vulgaris L.) in tropical world regions. The aim of this study was to evaluate antixenosis of two P. vulgaris genotypes to Z. subfasciatus and the emission of volatile compounds from seeds of these genotypes. Antixenosis in adults and oviposition was evaluated using the obligate antibiosis test, on ‘G11051’ and ‘ICA Pijao’ genotypes of common bean to Z. subfasciatus. The volatile compounds of their seeds related to antixenosis were also evaluated. The number of adult insects away from seeds, the percentage of eggs in seeds and the container and the number of total eggs were counted. The presence of volatile compounds was determined by headspace solid-phase microextraction coupled with gas chromatography - mass spectrometry (HS-SPME-GC-MS). Genotype ‘G11051’ showed higher adult antixenosis (80 % non-preference) and antixenosis by oviposition on their seeds than ‘ICA Pijao’ genotype which showed only 11 % repellency. Significant statistical differences were found in the volatile compounds detected. ‘G11051’ showed 65 compounds and 22 specific to this genotype, while in ‘ICA Pijao’, 53 compounds were detected, eight of which were specific to this genotype. Of these, dimethyl disulfide, limonene, (E)-2-hexenal and hexanal showed known antixenotic activity.

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Variation Between Three Eragrostis tef Accessions in Defense Responses to Rhopalosiphum padi Aphid Infestation

et al. 2020

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Tef (Eragrostis tef), a staple crop that originated in the Horn of Africa, has been introduced to multiple countries over the last several decades. Crop cultivation in new geographic regions raises questions regarding the molecular basis for biotic stress responses. In this study, we aimed to classify the insect abundance on tef crop in Israel, and to elucidate its chemical and physical defense mechanisms in response to insect feeding. To discover the main pests of tef in the Mediterranean climate, we conducted an insect field survey on three selected accessions named RTC-144, RTC-405, and RTC-406, and discovered that the most abundant insect order is Hemiptera. We compared the differences in Rhopalosiphum padi (Hemiptera; Aphididae) aphid performance, preference, and feeding behavior between the three accessions. While the number of aphid progeny was lower on RTC-406 than on the other two, the aphid olfactory assay indicated that the aphids tended to be repelled from the RTC-144 accession. To highlight the variation in defense responses, we investigated the physical and chemical mechanisms. As a physical barrier, the density of non-granular trichomes was evaluated, in which a higher number of trichomes on the RTC-406 than on the other accessions was observed. This was negatively correlated with aphid performance. To determine chemical responses, the volatile and central metabolite profiles were measured upon aphid attack for 4 days. The volatile analysis exposed a rich and dynamic metabolic profile, and the central metabolism profile indicated that tef plants adjust their sugars and organic and amino acid levels. Overall, we found that the tef plants possess similar defense responses as other Poaceae family species, while the non-volatile deterrent compounds are yet to be characterized. A transcriptomic time-series analysis of a selected accession RTC-144 infested with aphids revealed a massive alteration of genes related to specialized metabolism that potentially synthesize non-volatile toxic compounds. This is the first report to reveal the variation in the defense mechanisms of tef plants. These findings can facilitate the discovery of insect-resistance genes leading to enhanced yield in tef and other cereal crops.

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Composición química de volátiles de hojas de caña de azúcar y pastos mediante cromatografía de gases

Cited by 3 publications

References 11 publications

Metabolomics of common bean (Phaseolus vulgaris L.) antixenosis to the Mexican weevil (Zabrotes subfasciatus Boh.)

Metabolomics of common bean (Phaseolus vulgaris L.) antixenosis to the Mexican weevil (Zabrotes subfasciatus Boh.)

Metabolomics of common bean (Phaseolus vulgaris L.) antixenosis to the Mexican weevil (Zabrotes subfasciatus Boh.)

Variation Between Three Eragrostis tef Accessions in Defense Responses to Rhopalosiphum padi Aphid Infestation

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