The Plant Nuclear Pore Complex — The Nucleocytoplasmic Barrier and Beyond

Zhou, Xiao; Boruc, Joanna; Meier, Iris

doi:10.1002/9781118472507.ch3

Cited by 6 publications

(2 citation statements)

References 171 publications

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“…Herbivorous insects encounter a variety of chemical defense metabolites in their plant diet and thus require efficient strategies to prevent intoxication 1,2 . Many plant defense metabolites are stored as non-toxic glucosides (pro-toxins) and are hydrolyzed to reactive aglucones in the herbivore gut by plant or insect β -glucosidases.…”

Section: Introductionmentioning

confidence: 99%

Identification and evolution of glucosinolate sulfatases in a specialist flea beetle

Ahn

Betzin

Gikonyo

et al. 2019

Sci Rep

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Glucosinolates, a characteristic group of specialized metabolites found in Brassicales plants, are converted to toxic isothiocyanates upon herbivory. Several insect herbivores, including the cabbage stem flea beetle (Psylliodes chrysocephala), prevent glucosinolate activation by forming desulfo-glucosinolates. Here we investigated the molecular basis of glucosinolate desulfation in P. chrysocephala, an important pest of oilseed rape. Enzyme activity assays with crude beetle protein extracts revealed that glucosinolate sulfatase (GSS) activity is associated with the gut membrane and has narrow substrate specificity towards the benzenic glucosinolate sinalbin. In agreement with GSS activity localization in vivo, we identified six genes encoding arylsulfatase-like enzymes with a predicted C-terminal transmembrane domain, of which five showed GSS activity upon heterologous expression in insect cells. PcGSS1 and PcGSS2 used sinalbin and indol-3-ylmethyl glucosinolate as substrates, respectively, whereas PcGSS3, PcGSS4, and PcGSS5 showed weak activity in enzyme assays. RNAi-mediated knock-down of PcGSS1 and PcGSS2 expression in adult beetles confirmed their function in vivo. In a phylogenetic analysis of coleopteran and lepidopteran arylsulfatases, the P. chrysocephala GSSs formed a cluster within a coleopteran-specific sulfatase clade distant from the previously identified GSSs of the diamondback moth, Plutella xylostella, suggesting an independent evolution of GSS activity in ermine moths and flea beetles.

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Section: Introductionmentioning

confidence: 99%

Identification and evolution of glucosinolate sulfatases in a specialist flea beetle

Ahn

Betzin

Gikonyo

et al. 2019

Sci Rep

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“…Plants produce more than 200,000 different secondary metabolites, and many of them are involved in defence against herbivores (Mithöfer and Boland 2012). The distribution of secondary metabolites in related plant species often correlates with the food plant range of specialised insect herbivores, which evolved strategies to avoid, tolerate, or detoxify these defence compounds (Heckel 2014). Such adaptations presumably played an important role in the species diversification of plant-feeding insects (Ehrlich and Raven 1964; Futuyma and Agrawal 2009), but the specific molecular mechanisms underlying host plant adaptation, and their role in insect ecology and speciation, are largely unknown.…”

Section: Introductionmentioning

confidence: 99%

Adaptation of flea beetles to Brassicaceae: host plant associations and geographic distribution of Psylliodes Latreille and Phyllotreta Chevrolat (Coleoptera, Chrysomelidae)

Gikonyo¹,

Biondi²,

Beran³

2019

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The cosmopolitan flea beetle genera Phyllotreta and Psylliodes (Galerucinae, Alticini) are mainly associated with host plants in the family Brassicaceae and include economically important pests of crucifer crops. In this review, the host plant associations and geographical distributions of known species in these genera are summarised from the literature, and their proposed phylogenetic relationships to other Alticini analysed from published molecular phylogenetic studies of Galerucinae. Almost all Phyllotreta species are specialised on Brassicaceae and related plant families in the order Brassicales, whereas Psylliodes species are associated with host plants in approximately 24 different plant families, and 50% are specialised to feed on Brassicaceae. The current knowledge on how Phyllotreta and Psylliodes are adapted to the characteristic chemical defence in Brassicaceae is reviewed. Based on our findings we postulate that Phyllotreta and Psylliodes colonised Brassicaceae independently from each other.

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Compartmentation of Salicylate-induced proteins

Tarchevsky

2014

Appl Biochem Microbiol

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A key factor of immunity, salicylic acid (exogenous or accumulating under the action of biotrophic or semibiotrophic pathogens on plants), causes the formation of not only protective antipatho genic proteins but also many proteins, which enhance the resistance of host plant cells. Salicylate induced proteins, which are encoded by nuclear genes and formed with cytoplasmic ribosomes, function in the cytosol or are transported into nuclei, vacuoles, plastids, mitochondria, and outside the plasmalemma. This review is focused on salicylate induced proteins, which are not only delivered into different compartments but are also involved in their transmembrane transport.

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The Plant Nuclear Pore Complex — The Nucleocytoplasmic Barrier and Beyond

Cited by 6 publications

References 171 publications

Identification and evolution of glucosinolate sulfatases in a specialist flea beetle

Identification and evolution of glucosinolate sulfatases in a specialist flea beetle

Adaptation of flea beetles to Brassicaceae: host plant associations and geographic distribution of Psylliodes Latreille and Phyllotreta Chevrolat (Coleoptera, Chrysomelidae)

Compartmentation of Salicylate-induced proteins

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