Direct and indirect plant defenses induced by (Z)-3-hexenol in tomato against whitefly attack

Yang, Fengbo; Zhang, Qinghe; Yao, Qixi; Chen, Gong; Hong, Tong Zheng; Jian-min, Zhang; Li, Chuanren; Su, Qi; Zhang, Youjun

doi:10.1007/s10340-020-01234-6

Cited by 40 publications

(39 citation statements)

References 71 publications

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“…In addition to finding that Z ‐3‐HOL priming reduced vector whitefly settling/feeding (Figure 1d; Yang et al, 2020) and reduced virus transmission by whiteflies, we also found that Z ‐3‐HOL reduced the negative impact of whitefly infestation on tomato growth. In the greenhouse, Z ‐3‐HOL exposure caused a small but statistically significant reduction in the aboveground dry mass of tomato plants without whitefly infestation (Figure 7b).…”

Section: Discussionsupporting

confidence: 83%

“…Our results also indicated that Z ‐3‐HOL pre‐exposure significantly reduced whitefly vector visitation time (1 hr) and settling time (2–24 hr) (Figure 1d). Furthermore, our recent study using electrical penetration graphing analysis showed that Z ‐3‐HOL treatment can also attenuate whitefly feeding by shortening the total feeding period and phloem ingestion and increasing the frequency of stylet puncture (Yang et al, 2020). We therefore expect that both early and late whitefly deterrent effects of Z ‐3‐HOL will help to reduce infection rates and virus transmission.…”

Section: Discussionmentioning

confidence: 99%

“…For the Z ‐3‐HOL treatment, 100 nmol of Z ‐3‐HOL (Sigma‐Aldrich), dissolved in 100 μL of dichloromethane (DCM, 1 nmol μL −1 ), were pipetted onto a cotton ball, which was then hung in a 5‐L glass jar containing a tomato plant for 24 hr. This dose was selected based on the results of our recent study demonstrating that Z ‐3‐HOL can prime defence response in tomato (Yang et al, 2020). Controls consisted of a plant in a chamber exposed to 100 μL of DCM on a cotton ball for the same period.…”

Section: Methodsmentioning

confidence: 99%

“…Increasing the resistance of current cultivars to vector insects or to the viruses that they transmit may be a useful alternative to the application of chemicals for control of vectors or to the breeding of new cultivars with enhanced resistance to viruses. Previous studies have shown that exogenous application of Z ‐3‐HOL and other GLVs can increase JA levels and induce the transcription of defence‐related genes and downstream metabolites in plants (Arimura, Ozawa, Horiuchi, Nishioka, & Takabayashi, 2001; Engelberth et al, 2004; Engelberth, Contreras, Dalvi, Li, & Engelberth, 2013; Farag et al, 2005; Xin, Li, Li, Chen, & Sun, 2016; Yang et al, 2020) and influence herbivore performance and behaviour (Wei & Kang, 2011; Xin et al, 2016; Yang et al, 2020). However, whether Z ‐3‐HOL treatment affects subsequent virus transmission and infection has not been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Defence priming in tomato by the green leaf volatile (Z)‐3‐hexenol reduces whitefly transmission of a plant virus

Yang

Zhang

et al. 2020

Plant Cell & Environment

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Green leaf volatiles (GLVs) can induce defence priming, that is, can enable plants to respond faster or more strongly to future stress. The effects of priming by GLVs on defence against insect herbivores and pathogens have been investigated, but little is known about the potential of GLVs to prime crops against virus transmission by vector insects. Here, we tested the hypothesis that exposure to the GLV Z-3-hexenol (Z-3-HOL) can prime tomato (Solanum lycopersicum) for an enhanced defence against subsequent Tomato yellow leaf curl virus (TYLCV) transmission by the whitefly Bemisia tabaci. Bioassays showed that Z-3-HOL priming reduced subsequent plant susceptibility to TYLCV transmission by whiteflies. Z-3-HOL treatment increased transcripts of jasmonic acid (JA) biosynthetic genes and increased whitefly-induced transcripts of salicylic acid (SA) biosynthetic genes in plants. Using chemical inducers, transgenics and mutants, we demonstrated that induction of JA reduced whitefly settling and successful whitefly inoculation, while induction of SA reduced TYLCV transmission by whiteflies. Defence gene transcripts and flavonoid levels were enhanced when whiteflies fed on Z-3-HOL-treated plants. Moreover, Z-3-HOL treatment reduced the negative impact of whitefly infestation on tomato growth. These findings suggest that Z-3-HOL priming may be a valuable tool for improving management of insecttransmitted plant viruses.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Defence priming in tomato by the green leaf volatile (Z)‐3‐hexenol reduces whitefly transmission of a plant virus

Yang

Zhang

et al. 2020

Plant Cell & Environment

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“…For example, bioassays have shown that naïve honeybees are attracted to apple floral scent [ 50 ]. However, many plants, including tomato, release repellent volatile organic compounds to defend against insect herbivores [ 51 , 52 , 53 ]. Plant defense against herbivores may show a trade-off with pollinator attraction [ 54 ].…”

Section: Discussionmentioning

confidence: 99%

Prior Experience with Food Reward Influences the Behavioral Responses of the Honeybee Apis mellifera and the Bumblebee Bombus lantschouensis to Tomato Floral Scent

Zhang

Shan

et al. 2020

Insects

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Bee responses to floral scent are usually influenced by both innate biases and prior experience. Honeybees are less attracted than bumblebees to tomato flowers. However, little is known about how tomato floral scent regulates the foraging behaviors of honeybees and bumblebees. In this study, the foraging behaviors of the honeybee Apis mellifera and the bumblebee Bombus lantschouensis on tomato flowers in greenhouses were investigated. Whether the two bee species exhibit different responses to tomato floral scent and how innate biases and prior experience influence bee choice behavior were examined. In the greenhouses, honeybees failed to collect pollen from tomato flowers, and their foraging activities decreased significantly over days. Additionally, neither naïve honeybees nor naïve bumblebees showed a preference for tomato floral scent in a Y-tube olfactometer. However, foraging experience in the tomato greenhouses helped bumblebees develop a strong preference for the scent, whereas honeybees with foraging experience continued to show aversion to tomato floral scent. After learning to associate tomato floral scent with a sugar reward in proboscis extension response (PER) assays, both bee species exhibited a preference for tomato floral scent in Y-tube olfactometers. The findings indicated that prior experience with a food reward strongly influenced bee preference for tomato floral scent.

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Changes in volatile profile and related gene expression during senescence of tobacco leaves

Wen

Cao

et al. 2023

J Sci Food Agric

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BACKGROUNDVolatile organic compounds are critical for food flavor and play important roles in plant–plant interactions and plants' communications with the environment. Tobacco is well‐studied for secondary metabolism and most of the typical flavor substances in tobacco leaves are generated at the mature stage of leaf development. However, the changes in volatiles during leaf senescence are rarely studied.RESULTSThe volatile composition of tobacco leaves at different stages of senescence was characterized for the first time. Comparative volatile profiling of tobacco leaves at different stages was performed using solid‐phase microextraction coupled with gas chromatography/mass spectrometry. In total, 45 volatile compounds were identified and quantified, including terpenoids, green leaf volatiles (GLVs), phenylpropanoids, Maillard reaction products, esters, and alkanes. Most of the volatile compounds showed differential accumulation during leaf senescence. Some terpenoids, including neophytadiene, β‐springene, and 6‐methyl‐5‐hepten‐2‐one, increased significantly with the progress of leaf senescence. Hexanal and phenylacetaldehyde also showed increased accumulation in leaves during senescence. The results from gene expression profiling indicated that genes involved in metabolism of terpenoids, phenylpropanoids, and GLVs were differentially expressed during leaf yellowing.CONCLUSIONDynamic changes in volatile compounds during tobacco leaf senescence are observed and the integration of gene‐metabolites datasets offers important readouts for the genetic control of volatile production during the process of leaf senescence. © 2023 Society of Chemical Industry.

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Direct and indirect plant defenses induced by (Z)-3-hexenol in tomato against whitefly attack

Cited by 40 publications

References 71 publications

Defence priming in tomato by the green leaf volatile (Z)‐3‐hexenol reduces whitefly transmission of a plant virus

Defence priming in tomato by the green leaf volatile (Z)‐3‐hexenol reduces whitefly transmission of a plant virus

Prior Experience with Food Reward Influences the Behavioral Responses of the Honeybee Apis mellifera and the Bumblebee Bombus lantschouensis to Tomato Floral Scent

Changes in volatile profile and related gene expression during senescence of tobacco leaves

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