Asymmetric consequences of host plant occupation on the competition between the whiteflies <i>Bemisia tabaci</i> cryptic species <scp>MEAM1</scp> and <i>Trialeurodes vaporariorum</i> (Hemiptera: Aleyrodidae)

Zhang, Guifen; Löveï, Gábor L.; Hu, Man; Wan, Fang‐Hao

doi:10.1002/ps.3713

Cited by 13 publications

(8 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…tabaci and its herbivorous competitors Trichoplusia ni , Pieris rapae , Liriomyza trifolii , and Trialeurodes vaporariorum have shown that the presence of B . tabaci might influence the performance of these competitors via host plant induced defense reactions [39–42]. …”

Section: Introductionmentioning

confidence: 99%

Antioxidant Enzyme Responses Induced by Whiteflies in Tobacco Plants in Defense against Aphids: Catalase May Play a Dominant Role

et al. 2016

View full text Add to dashboard Cite

BackgroundBemisia tabaci MEAM1 (Middle East-Asia Minor 1) feeding alters antioxidative enzyme activity in some plant species. Infestation of B. tabaci nymphs decreases Myzus persicae performance on systemic, but not local leaves of tobacco plants. However, it is unclear if B. tabaci nymphs induced antioxidant activities contributing to the aphid resistance.Methodology/Principal FindingsWe investigated the relationship between antioxidants induced by nymphs of B. tabaci feeding on tobacco and aphid resistance. The activities of catalase (CAT), peroxidase (POD), superoxide dismutase (SOD) and the concentration of hydrogen peroxide (H2O2) were assayed in tobacco leaves at different feeding times following infestation of B. tabaci nymphs. The infestation altered the activities of CAT and POD, but had no significant effect on SOD activity. The highest CAT activity was observed at 15 d after infestation. This was 98.2% greater than control systemic leaves, but 32.6% lower than the control in local leaves. Higher POD activity was recorded in local vs. systemic leaves after 15 d of infestation. POD activity was 71.0% and 112.9% higher in local and systemic leaves, respectively, than in the controls. The changes of CAT, but not POD or SOD activity were correlated to levels of aphid resistance. H2O2 levels were higher in local than in systemic leaves in contrast to CAT activity. Tobacco curly shoot virus mediated virus-induced gene silencing was employed to determine if CAT activation was involved in the aphid resistance induced by B. tabaci nymphs. B. tabaci induced CAT activity decreased when the Cat1 expression was silenced. The performance assay indicated that Cat1 silencing made B. tabaci infested plants a more suitable host for aphids than infested control plants. The aphid survival rate was reduced by 40.4% in infested control plants, but reduced by only 26.1% in Cat1-silenced plants compared to uninfested controls. Also, qPCR results showed that silencing of Cat1 led to the suppression of the B. tabaci mediated PR-2a expression.Conclusions/SignificanceAphid resistance in plants infested with B. tabaci nymphs is associated with enhanced antioxidant activities in which CAT may play a dominant role. This resistance probably acted via interactions with SA-mediated defense responses.

show abstract

Section: Introductionmentioning

confidence: 99%

Antioxidant Enzyme Responses Induced by Whiteflies in Tobacco Plants in Defense against Aphids: Catalase May Play a Dominant Role

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Recently, studies of B . tabaci and its herbivorous competitors Trichoplusia ni , Pieris rapae , Liriomyza trifolii , and Trialeurodes vaporariorum have shown that the plants previously exposed to whitefly feeding to be less suitable for other herbivores, which subsequently showed behavioral differences (oviposition, feeding preferences) and reduced development, survival rates, and overall population growth [ 21 – 25 ].…”

Section: Introductionmentioning

confidence: 99%

Feeding of Whitefly on Tobacco Decreases Aphid Performance via Increased Salicylate Signaling

et al. 2015

View full text Add to dashboard Cite

BackgroundThe feeding of Bemisia tabaci nymphs trigger the SA pathway in some plant species. A previous study showed that B. tabaci nymphs induced defense against aphids (Myzus persicae) in tobacco. However, the mechanism underlying this defense response is not well understood.Methodology/Principal FindingsHere, the effect of activating the SA signaling pathway in tobacco plants through B. tabaci nymph infestation on subsequent M. persicae colonization is investigated. Performance assays showed that B. tabaci nymphs pre-infestation significantly reduced M. persicae survival and fecundity systemically in wild-type (WT) but not salicylate-deficient (NahG) plants compared with respective control. However, pre-infestation had no obvious local effects on subsequent M. persicae in either WT or NahG tobacco. SA quantification results indicated that the highest accumulation of SA was induced by B. tabaci nymphs in WT plants after 15 days of infestation. These levels were 8.45- and 6.14-fold higher in the local and systemic leaves, respectively, than in controls. Meanwhile, no significant changes of SA levels were detected in NahG plants. Further, biochemical analysis of defense enzymes polyphenol oxidase (PPO), peroxidase (POD), β-1,3-glucanase, and chitinase demonstrated that B. tabaci nymph infestation increased these enzymes’ activity locally and systemically in WT plants, and there was more chitinase and β-1, 3-glucanase activity systemically than locally, which was opposite to the changing trends of PPO. However, B. tabaci nymph infestation caused no obvious increase in enzyme activity in any NahG plants except POD.Conclusions/SignificanceIn conclusion, these results underscore the important role that induction of the SA signaling pathway by B. tabaci nymphs plays in defeating aphids. It also indicates that the activity of β-1, 3-glucanase and chitinase may be positively correlated with resistance to aphids.

show abstract

“…B. tabaci MEAM1 feeding induced Arabidopsis SA-signaling pathways and suppresses or does not alter the expression of JA/ethylene-regulated genes Zarate et al 2007;Zhang et al 2013b), while M. persicae infestation activates both SA-and JAsignaling pathways (Moran et al 2002;Girling et al 2008 (Zhang et al 2013a), indicating that the two species induce different defense responses in tomato. Puthoff et al (2010)'s report of these two pests feeding on tomato (S. lycopersicum) leaves inducing similar local and systemic expression patterns in several defense-and wound-response genes could perhaps be caused by a different experimental design.…”

Section: Discussionmentioning

confidence: 97%

Species-specific effects on salicylic acid content and subsequent Myzus persicae (Sulzer) performance by three phloem-sucking insects infesting Nicotiana tabacum L.

Zhang

Xue

Zhao

2015

Arthropod-Plant Interactions

View full text Add to dashboard Cite

Bemisia tabaci Middle East-Asia Minor 1 (MEAM1) nymphs, when feeding on tobacco, generate changes that have negative systemic effects on the aphid Myzus persicae. To determine whether differences exist among defense responses induced by B. tabaci MEAM1, the whitefly Trialeurodes vaporariorum, and M. persicae, we compared salicylic acid (SA) contents in tobacco plants infested by adults and nymphs of these three species, as well as their effect on subsequently colonizing M. persicae. Plants infested with B. tabaci MEAM1 nymphs had 19.1-and 10.2-fold higher local and systemic SA levels, respectively, than the control. Infestation with T. vaporariorum caused a smaller (4.4-and 2.3-fold, respectively) increase. Nymphs of either whitefly species had significantly greater effects on SA levels than adults. SA levels in M. persicae-infested plants were 3.0-and 1.2-fold higher than in the control. Pre-infestation with B. tabaci MEAM1 nymphs significantly reduced M. persicae survival and fecundity, while T. vaporariorum nymphs reduced survival but had no effect on fecundity compared with the uninfested control. Pre-infestation with M. persicae or whitefly adults had no obvious local or systemic effects on subsequent M. persicae. The SA pathway may be a core B. tabaci MEAM1-induced defense against aphids in tobacco.

show abstract

Asymmetric consequences of host plant occupation on the competition between the whiteflies Bemisia tabaci cryptic species MEAM1 and Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

Abstract: The interspecific interactions between B. tabaci MEAM1 and T. vaporariorum were asymmetric, with B. tabaci MEAM1 being the superior competitor. This superiority could partially explain the rapid spread of B. tabaci MEAM1 in China.

Cited by 13 publications

References 38 publications

Antioxidant Enzyme Responses Induced by Whiteflies in Tobacco Plants in Defense against Aphids: Catalase May Play a Dominant Role

Antioxidant Enzyme Responses Induced by Whiteflies in Tobacco Plants in Defense against Aphids: Catalase May Play a Dominant Role

Feeding of Whitefly on Tobacco Decreases Aphid Performance via Increased Salicylate Signaling

Species-specific effects on salicylic acid content and subsequent Myzus persicae (Sulzer) performance by three phloem-sucking insects infesting Nicotiana tabacum L.

Contact Info

Product

Resources

About