Communication between plants: induced resistance in poplar seedlings following herbivore infestation, mechanical wounding, and volatile treatment of the neighbors

Tang, Fang; Zhao, Wen-Liang; Gao, Xiwu

doi:10.1111/eea.12114

Cited by 18 publications

(12 citation statements)

References 61 publications

(98 reference statements)

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“…Low temperature, drought, insect pests, and other adverse conditions can induce PAL expression and promote the synthesis of various biologically active substances, thus enhancing the antioxidant capacity of tissues. 39,40 This result was similar to the conclusion of our study. The transcriptional peaks of PAL were delayed by coating treatment, which can increase the resistance of winter jujube.…”

Section: Discussionsupporting

confidence: 92%

Physiological and metabolic analysis of winter jujube after postharvest treatment with calcium chloride and a composite film

et al. 2020

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BACKGROUND: Ziziphus jujuba Miller cv. Dongzao is extremely susceptible to reddening, browning, nutritional loss, and perishability after harvest. In this study, we evaluated the mechanisms of calcium chloride and chitosan/nano-silica composite film treatments on the quality, especially in reddening, by physiological and metabolomic assays. RESULTS: The treatment delayed the decline of phenylalanine ammonia-lyase (PAL), chalcone synthase (CHS), and chalcone isomerase (CHI) activities. Meanwhile, the treated groups retarded the increases in anthocyanin and quercetin contents by inhibiting the gene expressions of flavonol synthase (ZjFLS), dihydroflavonol 4-reductase (ZjDFR), and anthocyanidin synthase (ZjANS), while promoting leucoanthocyanidin reductase (ZjLAR) expression, which leads to retardation of fruit reddening. Anthocyanins were found to be responsible for post-harvest winter jujube reddening through principal component analysis. Results from the technique for order preference by similarity to an ideal solution indicated that the treated group delayed the decline of the quality of 'Dongzao' and extended its shelf life. CONCLUSION: The treatment induced the heightening of flavonoids metabolism. They enhanced the nutritional value and the ability to resist stress by delaying the decline of PAL, CHS, and CHI activities. Meanwhile, the treated groups retarded the increase in anthocyanin and quercetin contents by inhibiting the gene expressions of ZjFLS, ZjDFR, and ZjANS and promoting ZjLAR expression, which leads to retardation of fruit reddening. Anthocyanins are responsible for post-harvest winter jujube reddening. Coating treatment effectively delayed the decline of winter jujube quality.

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Section: Discussionsupporting

confidence: 92%

Physiological and metabolic analysis of winter jujube after postharvest treatment with calcium chloride and a composite film

et al. 2020

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“…MeSA is an aromatic compound naturally produced by plants under attack from phloem-feeding herbivores like aphids (Staudt et al, 2010). The role of MeSA in plant-plant and plant-insect interactions has been demonstrated in cereal plant species (Ninkovic et al, 2003) as well as other plant systems (James, 2005;Orre, Wratten, Jonsson, & Hale, 2010;Snoeren et al, 2010;Tang, Zhao, & Gao, 2013). MeSA is a typical induced compound naturally found in our study habitat, as aphids are the main herbivorous pests of cereal crops.…”

Section: Olfactory Cues and Arthropod Preymentioning

confidence: 81%

Disentangling olfactory and visual information used by field foraging birds

Rubene

Leidefors

Ninkovic

et al. 2018

Ecology and Evolution

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Foraging strategies of birds can influence trophic plant–insect networks with impacts on primary plant production. Recent experiments show that some forest insectivorous birds can use herbivore‐induced plant volatiles (HIPVs) to locate herbivore‐infested trees, but it is unclear how birds combine or prioritize visual and olfactory information when making foraging decisions. Here, we investigated attraction of ground‐foraging birds to HIPVs and visible prey in short vegetation on farmland in a series of foraging choice experiments. Birds showed an initial preference for HIPVs when visual information was the same for all choice options (i.e., one experimental setup had all options with visible prey, another setup with hidden prey). However, if the alternatives within an experimental setup included visible prey (without HIPV) in competition with HIPV‐only, then birds preferred the visual option over HIPVs. Our results show that olfactory cues can play an important role in birds’ foraging choices when visual information contains little variation; however, visual cues are preferred when variation is present. This suggests certain aspects of bird foraging decisions in agricultural habitats are mediated by olfactory interaction mechanisms between birds and plants. We also found that birds from variety of dietary food guilds were attracted to HIPVs; hence, the ability of birds to use plant cues is probably more general than previously thought, and may influence the biological pest control potential of birds on farmland.

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“…Polyphenol oxidase was identified from propolis for the first time when it has been purified from black poplar leaves [22] and its activity has been determined in poplar seedlings [23]. The enzyme might have been made inactive when alcohols was added [20], or by heating during the decoction process.…”

Section: Resultsmentioning

confidence: 99%

Identification of Catechol as a New Marker for Detecting Propolis Adulteration

Huang

Zhang

et al. 2014

Molecules

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Adulteration of propolis with poplar extract is a serious issue in the bee products market. The aim of this study was to identify marker compounds in adulterated propolis, and examine the transformation of chemical components from poplar buds to propolis. The chemical profiles of poplar extracts and propolis were compared, and a new marker compound, catechol, was isolated and identified from the extracts of poplar buds. The polyphenol oxidase, catechol oxidase, responsible for catalyzing oxidation of catechol was detected in poplar buds and propolis. The results indicate catechol can be used as a marker to detect propolis adulterated with poplar extract.

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Communication between plants: induced resistance in poplar seedlings following herbivore infestation, mechanical wounding, and volatile treatment of the neighbors

Cited by 18 publications

References 61 publications

Physiological and metabolic analysis of winter jujube after postharvest treatment with calcium chloride and a composite film

Physiological and metabolic analysis of winter jujube after postharvest treatment with calcium chloride and a composite film

Disentangling olfactory and visual information used by field foraging birds

Identification of Catechol as a New Marker for Detecting Propolis Adulteration

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