Spatial distribution and community structure of microbiota associated with cowpea aphid (Aphis craccivora Koch)

Pawar, Madhusudan M.; Shivanna, B. K.; Prasannakumar, M. K.; Parivallal, P. Buela; Suresh, Kiran; Meenakshi, N.

doi:10.1007/s13205-022-03142-1

Cited by 3 publications

(3 citation statements)

References 82 publications

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“… Thairu and Hansen (2019) that Buchnera sRNAs were differentially expressed when aphids fed on different plants. There are three reasons for this: firstly, Phytotoxins or secondary metabolites produced by different host plants can inhibit or promote the increase of the symbiotic bacteria titer in pea aphids, and secondary metabolites also have an inhibitory and bactericidal effect ( Pawar et al., 2022 ). Secondly, significant differences in the amino acid composition of different host plants can interfere with the optimal symbiont density ( Sandstrom and Pettersson, 1994 ; Douglas, 2003 ).…”

Section: Discussionmentioning

confidence: 99%

Host plant-mediated effects on Buchnera symbiont: implications for biological characteristics and nutritional metabolism of pea aphids (Acyrthosiphon pisum)

Liu,

Yang,

Liu

et al. 2023

Front. Plant Sci.

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IntroductionThe pea aphid, Acyrthosiphon pisum, is a typical sap-feeding insect and an important worldwide pest. There is a primary symbiont-Buchnera aphidicola, which can synthesize and provide some essential nutrients for its host. At the same time, the hosts also can actively adjust the density of bacterial symbiosis to cope with the changes in environmental and physiological factors. However, it is still unclear how symbionts mediate the interaction between herbivorous insects’ nutrient metabolism and host plants.MethodsThe current study has studied the effects of different host plants on the biological characteristics, Buchnera titer, and nutritional metabolism of pea aphids. This study investigated the influence of different host plants on biological characteristics, Buchnera titer, and nutritional metabolism of pea aphids.Results and discussionThe titer of Buchnera was significantly higher on T. Pretense and M. officinalis, and the relative expression levels were 1.966±0.104 and 1.621±0.167, respectively. The content of soluble sugar (53.46±1.97µg/mg), glycogen (1.12±0.07µg/mg) and total energy (1341.51±39.37µg/mg) of the pea aphid on V. faba were significantly higher and showed high fecundity (143.86±11.31) and weight (10.46±0.77µg/mg). The content of total lipids was higher on P. sativum and T. pretense, which were 2.82±0.03µg/mg and 2.92±0.07µg/mg, respectively. Correlation analysis found that the difference in Buchnera titer was positively correlated with the protein content in M. officinalis and the content of total energy in T. pratense (P < 0.05). This study confirmed that host plants not only affected the biological characteristics and nutritional metabolism of pea aphids but also regulated the symbiotic density, thus interfering with the nutritional function of Buchnera. The results can provide a theoretical basis for further studies on the influence of different host plants on the development of pea aphids and other insects.

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Section: Discussionmentioning

confidence: 99%

Host plant-mediated effects on Buchnera symbiont: implications for biological characteristics and nutritional metabolism of pea aphids (Acyrthosiphon pisum)

Liu,

Yang,

Liu

et al. 2023

Front. Plant Sci.

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“… 3 It hosts many plants such as Rosaceae, Malvaceae, Asteraceae, Caryophyllaceae, Solanaceae, Chenopodiaceae, and Ranunculaceae families, but it appears to prefer groups of the bean family. 4 − 6 Aphids are vectors for a number of plant viruses such as mosaic virus, mottle virus, alfalfa mosaic virus, and peanut virus. 7 , 8 …”

Section: Introductionmentioning

confidence: 99%

“…Aphis craccivora, also identified as the cowpea aphid, is among the most threatening crop pests causing direct damage to plants by distorting and delaying plant growth. , The molasses produced by the vector are applied on the plant and encourage mold growth with soot limiting photosynthesis . It hosts many plants such as Rosaceae, Malvaceae, Asteraceae, Caryophyllaceae, Solanaceae, Chenopodiaceae, and Ranunculaceae families, but it appears to prefer groups of the bean family. − Aphids are vectors for a number of plant viruses such as mosaic virus, mottle virus, alfalfa mosaic virus, and peanut virus. , …”

Section: Introductionmentioning

confidence: 99%

Green Design, Synthesis, and Molecular Docking Study of Novel Quinoxaline Derivatives with Insecticidal Potential against Aphis craccivora

et al. 2022

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An efficient and environmentally friendly method was established for designing novel 3-amino-1,4-dihydroquinoxaline-2-carbonitrile ( 1 ) via the reaction of bromomalononitrile and benzene-1,2-diamine under microwave irradiation in an excellent yield (93%). This targeted amino derivative was utilized for the construction of a series of Schiff bases ( 8 – 13 ). A new series of thiazolidinone derivatives ( 15 – 20 ) were synthesized in high yields (89–96%) via treatment of thioglycolic acid with Schiff bases ( 8 – 13 ) under microwave irradiation in high yields (89–96%). Moreover, new pyrimidine derivatives ( 26 – 30 and 35 – 38 ) were prepared by treatment of compound 1 with arylidenes ( 21 – 25 ) and/or alkylidenemalononitriles ( 31 – 34 ) using piperidine as a basic catalyst under microwave conditions. Based on elemental analyses and spectral data, the structures of the new assembled compounds were determined. The newly synthesized quinoxaline derivatives were screened and studied as an insecticidal agent against Aphis craccivora . The obtained results indicate that compound 16 is the most toxicological agent against nymphs of cowpea aphids ( Aphis craccivora ) compared to the other synthesized pyrimidine and thiazolidinone derivatives. The molecular docking study of the new quinoxaline derivatives registered that compound 16 had the highest binding score (−10.54 kcal/mol) and the thiazolidinone moiety formed hydrogen bonds with Trp143.

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Illustrating the current geographic distribution of Diaphorina citri (Hemiptera: Psyllidae) in Campeche, Mexico: a maximum entropy modeling approach

Alonso-Hernández,

Granados-Echegoyen,

Pérez-Pacheco

et al. 2024

Florida Entomologist

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Diaphorina citri Kuwayama (Asian citrus psyllid) is a quarantine pest found in at least 60 countries, causing indirect damage as a primary vector of pathogens associated with Huanglongbing in citrus trees. Huanglongbing-infected trees die within 3–8 years, accompanied by economic losses in citriculture. D. citri has spread in Mexico to several states and is a high risk to Mexican citriculture due to its ability to cause damage and the lack of a disease cure. The primary objective of this research was to enhance our understanding of the current status of D. citri in southeastern Mexico. This study analyzed the distribution of D. citri in Campeche, Mexico from 2013 to 2020. The study generated 572,619 D. citri records from 40,620 yellow sticky traps deployed in 10 of the 12 municipalities of the state. We employed advanced MaxEnt and DivaGIS software to accomplish this study. Results showed population fluctuations with a peak during June and July from 2013 to 2019 and July and September in 2020. The study found a higher presence of D. citri in Campeche, Tenabo, Carmen, Champotón, and Escárcega and a higher incidence in Citrus latifolia Tanaka ex Q. Jiménez and Citrus sinensis (L.) Osbeck crops. The variance in the number of D. citri adults captured per year and the dispersion index (a parameter measuring the ability of insects to leave one ecosystem and move to another in search of suitable conditions for their survival and reproduction) was greater than the annual mean, demonstrating a spatially distributed, right-skewed aggregate. The elliptical polygon or standard deviation ellipse indicated the tendency for a less elongated ellipse in 2013–2014. From 2015 to 2018 D. citri expanded north towards Hecelchakán and south towards Champotón, Escárcega, and Carmen. In 2019, D. citri expanded north towards Champotón, Campeche, Tenabo, Hecelchakán, and Calkiní. The months with the most activity between 2013 and 2020 were May, June, July, and August, with June having the highest numbers collected. The results of the enveloped tests (parameter measuring how environmental conditions influence the spatial patterns of insect populations) showed the adaptability of D. citri to different conditions. D. citri prefers temperatures of 24.6–27.9 °C and 1,050–1,500 mm of rainfall. Areas with high-risk for D. citri are coastal and northern parts of the study area. Central Campeche is suitable, and southern parts have low to medium risk. Our research shows the relationship between climatic factors and the distribution of D. citri in the state of Campeche, Mexico. Moreover, our findings will be crucial for implementing effective surveillance measures in areas where the probability model indicates the potential presence of D. citri. This is especially significant due to the remarkable adaptability of D. citri to diverse environmental conditions.

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Spatial distribution and community structure of microbiota associated with cowpea aphid (Aphis craccivora Koch)

Cited by 3 publications

References 82 publications

Host plant-mediated effects on Buchnera symbiont: implications for biological characteristics and nutritional metabolism of pea aphids (Acyrthosiphon pisum)

Host plant-mediated effects on Buchnera symbiont: implications for biological characteristics and nutritional metabolism of pea aphids (Acyrthosiphon pisum)

Green Design, Synthesis, and Molecular Docking Study of Novel Quinoxaline Derivatives with Insecticidal Potential against Aphis craccivora

Illustrating the current geographic distribution of Diaphorina citri (Hemiptera: Psyllidae) in Campeche, Mexico: a maximum entropy modeling approach

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