Biological aspects of Bemisia tabaci biotype B and the chemical causes of resistance in soybean genotypes

Vieira, Simone Silva; Lourenção, André Luiz; Graça, José Perez da; Janegitz, T.; Salvador, Mariana Closs; Oliveira, M. C. N. de; Hoffmann-Campo, C. B.

doi:10.1007/s11829-016-9458-4

Cited by 14 publications

(7 citation statements)

References 45 publications

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“…The whitefly, Bemisia tabaci MEAM1 (Gennadius 1889) (Hemiptera: Aleyrodidae), is considered one of the most destructive invasive pests of many crops, including soybean (Glycine max (L.) Merril) [1]. Whiteflies were considered a secondary pest in soybean until the early 2000s, but today, it represents a species of economic importance [2], responsible for causing direct damage through the removal of phloem sap and indirectly favoring formation and growth of the fungus (Capnodium sp.) that causes sooty mold due to the excretion of honeydew.…”

Section: Introductionmentioning

confidence: 99%

Correlation-Based Network Analysis of the Influence of Bemisia tabaci Feeding on Photosynthesis and Foliar Sugar and Starch Composition in Soybean

Schutze

Yamamoto

Malaquias

et al. 2022

Insects

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Bemisia tabaci (MEAM1) represents a species of economic importance in soybean. One of the obstacles to the management of B. tabaci is the quantification of damage by the pest because damage is indirectly inferred through losses in productivity. The objective of this study was to characterize the influence of B. tabaci feeding on soybean by assessing effects on photosynthetic parameters and the sugar and starch content of soybean leaves. The goal was to identify the optimal parameter to directly quantify pest damage on crop yield. Correlation networks were created among data on sugar content (fructose, glucose, and sucrose), starch and photosynthetic parameters (initial fluorescence, performance index on absorption basis, and turn-over number), and the number of nymphs at each of three infestations level (low, medium, and high) during both the vegetative and reproductive stage of the crop. In general, nymphs were more abundant during the vegetative stage. Starch content was strongly correlated with nymph density. A strong positive correlation was observed between fructose and nymph density during the vegetative stage. Among the photosynthetic parameters, the turn-over number N was positively correlated with nymph density at a low-infestation level and negatively correlated with nymphs when they occurred at a high-infestation level. B. tabaci feeding affected the plant’s physiology and its interaction is reflected in part by the relationships among photosynthetic parameters as well as the levels of sugars and starch. This understanding might be useful in developing better monitoring tools for pest management.

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Section: Introductionmentioning

confidence: 99%

Correlation-Based Network Analysis of the Influence of Bemisia tabaci Feeding on Photosynthesis and Foliar Sugar and Starch Composition in Soybean

Schutze

Yamamoto

Malaquias

et al. 2022

Insects

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“…The discrepancy among these studies might be due to the feeding guilds or food habits of herbivores, such as specialist and generalist responding differently to plant secondary chemistry 67 – 69 , reflecting different coevolution between insects and plant defence. In this study, genistin acted as an antifeedant of both the pea aphids and cowpea aphids, which had been demonstrated to negatively affect stinkbugs ( Nezara viridula and Piezodorus guildinii ) and whitefly ( Bemisia tabaci ) 70 , 71 . They all seem to imply that genistin may be important secondary compounds conferring resistance to many insects that belong to different feeding guilds.…”

Section: Discussionmentioning

confidence: 86%

Elevated CO2 and O3 alter the feeding efficiency of Acyrthosiphon pisum and Aphis craccivora via changes in foliar secondary metabolites

Huang

Guo

Yuan

et al. 2018

Sci Rep

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Elevated CO2 and O3 can affect aphid performance via altering plant nutrients, however, little is known about the role of plant secondary metabolites in this process, especially for aphids feeding behaviors. We determined the effects of elevated CO2 and O3 on the growth and phenolics of alfalfa (Medicago sativa) and feeding behaviors of the pea aphids (Acyrthosiphon pisum) and cowpea aphids (Aphis craccivora). Elevated CO2 improved plant growth, but could not completely offset the negative effects of elevated O3. Elevated O3 increased foliar genistin content at the vegetative stage, increased ferulic acid at the reproductive stage, and elevated CO2 increased those at both stages. Simultaneously elevated CO2 and O3 increased foliar ferulic acid content at the reproductive stage and increased genistin content at both stages. For pea aphids, feeding efficiency was reduced under elevated CO2 at the reproductive stage and decreased under elevated O3 at the vegetative stage. For cowpea aphids, feeding efficiency was increased under elevated CO2 at the vegetative stage and decreased under elevated O3 at both stages. Simultaneously elevated CO2 and O3 decreased both aphids feeding efficiency. We concluded that CO2 and O3 independently or interactively had different effects on two aphids feeding behaviors through altering foliar ferulic acid and genistin contents.

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“…Therefore, it is essential that both constitutive and inducible responses to insect herbivory be considered when attempting to correlate the distribution of secondary metabolites in plants and theories of plant defense. Because soybean genotypes exhibit great variation in avonoids concentrations when injured or not by insects (Vieira et al 2016;Bentivenha et al 2017), using soybean as a model plant for testing the optimal defense theory could give further insights on its validity, and how induced resistance could be best used into integrated pest management practices.…”

Section: Discussionmentioning

confidence: 99%

Soybean leaf age and plant stage influence expression of resistance to velvetbean caterpillar and fall armyworm

et al. 2021

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Numerous species of herbivorous insects are associated with soybeans, including the specialist velvetbean caterpillar (VBC), Anticarsia gemmatalis, and the generalist fall armyworm (FAW), Spodoptera frugiperda. Expression of plant resistance is in uenced by factors intrinsic to host plants, such as leaf age and plant stage, which can differentially affect specialist and generalist insects due to varying levels of plant defense and corresponding insect adaptation. In this study four experiments were carried out to test the hypotheses that levels of antibiosisresistance to VBC and FAW in the resistant genotype PI 227687 and susceptible genotype IGRA RA 626 RR are related to leaf age and plant stage of soybean. Furthermore, the concentrations of nutrients and selected avonoids were quanti ed to give insights on possible chemical mechanisms underlying the resistance. As results, development of VBC and FAW were negatively affected when larvae fed leaves of the resistant genotype, older leaves from the lower part of plants, or leaves from reproductive-stage soybeans. The effects were partly different for each insect species, and the generalist FAW was more affected by higher resistance levels in the older leaves of soybean than the specialist VBC. Distribution and concentrations of nutrients and avonoids in soybean in function of leaf age and plant stage may explain the varying levels of antibiosis-resistance to VBC and FAW. These results can bene t developments of speci c protocols for screening resistant soybean genotypes and pest management strategies focused in plant parts and growth stages that insect-resistance levels are lowest. Key MessageLeaf age and plant stage are factors that in uence expression of resistance to insects. These factors were investigated in soybean genotypes on VBC and FAW development.Development of VBC and FAW were negatively affected on the resistant genotype, older leaves, and leaves from reproductive-stage soybeans, and the varying levels of resistance may be explained by avonoids and nutrients concentrations.The results can bene t developments of speci c protocols for screening soybean resistant genotypes and pest management strategies.

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Biological aspects of Bemisia tabaci biotype B and the chemical causes of resistance in soybean genotypes

Cited by 14 publications

References 45 publications

Correlation-Based Network Analysis of the Influence of Bemisia tabaci Feeding on Photosynthesis and Foliar Sugar and Starch Composition in Soybean

Correlation-Based Network Analysis of the Influence of Bemisia tabaci Feeding on Photosynthesis and Foliar Sugar and Starch Composition in Soybean

Elevated CO2 and O3 alter the feeding efficiency of Acyrthosiphon pisum and Aphis craccivora via changes in foliar secondary metabolites

Soybean leaf age and plant stage influence expression of resistance to velvetbean caterpillar and fall armyworm

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