Plant chemical defense: at what cost?

Neilson, Elizabeth Heather Jakobsen; Goodger, Jason Q. D.; Woodrow, Ian E.; Møller, Birger Lindberg

doi:10.1016/j.tplants.2013.01.001

Cited by 313 publications

(243 citation statements)

References 72 publications

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“…In newly formed shoots of Eucalyptus cladocalyx, as much as 25% of leaf nitrogen can be tied up in prunasin [53]. In specific plant tissues, the nitrogen and sugar bound within cyanogenic glycosides may therefore represent significant percentages of the total organic matter present [12]. Recycling of cyanogenic glycosides may thus serve to balance resource demands in primary metabolism.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Despite the established role of cyanogenic glycosides in plant chemical defence, it is apparent that they possess additional physiological functions which improve the plants phenotypic plasticity during specific developmental stages and under environmental stress [1,2,[7][8][9][10][11][12]. Studies on Olinia species suggest that cyanogenic glucosides may be involved in modulating oxidative stress by scavenging reactive oxygen species (e.g.…”

Section: Introductionmentioning

confidence: 99%

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A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species

Pičmanová

Neilson

Motawia

et al. 2015

Biochemical Journal

119

126

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N. (2015). A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species. Biochemical Journal, 469(3), 375-389. DOI: 10.1042/BJ20150390 1 A RECYCLING PATHWAY FOR CYANOGENIC GLYCOSIDES EVIDENCED BY THE COMPARATIVE METABOLIC PROFILING IN THREE CYANOGENIC PLANT SPECIES ABSTRACTCyanogenic glycosides are phytoanticipins involved in plant defence against herbivores by virtue of their ability to release toxic HCN upon tissue disruption. In addition, endogenous turnover of cyanogenic glycosides without the liberation of HCN may offer plants an important source of reduced nitrogen at specific developmental stages. To investigate the presence of putative turnover products of cyanogenic glycosides, comparative metabolic profiling using LC-MS/MS and HR-MS complemented by ion-mobility mass spectrometry was carried out in three cyanogenic plant species: cassava, almond and sorghum. In total, the endogenous formation of 36 different chemical structures related to the cyanogenic glucosides linamarin, lotaustralin, prunasin, amygdalin and dhurrin was discovered, including di-and triglycosides derived from these compounds. The relative abundance of the compounds was assessed in different tissues and developmental stages. Based on results common to the three phylogenetically unrelated species, a potential recycling endogenous turnover pathway for cyanogenic glycosides is described in which reduced nitrogen and carbon are recovered for primary metabolism without the liberation of free HCN. Glycosides of amides, carboxylic acids and anitriles derived from cyanogenic glycosides appear as common intermediates in this pathway and may also have individual functions in the plant. The recycling of cyanogenic glycosides and the biological significance of the presence of the turnover products in cyanogenic plants open entirely new insights into the multiplicity of biological roles cyanogenic glycosides may play in plants.Abbreviations: HR-MS, high-resolution mass spectrometry; EIC, extracted ion chromatogram; IM-MS, ionmobility mass spectrometry; ATD, arrival time distribution; CID, collision-induced dissociation 2 SUMMARY STATEMENTA potential recycling pathway for cyanogenic glycosides is presented wherein reduced nitrogen and carbon are recovered for primary metabolism without HCN liberation. Common types of glycosylated pathway intermediates were found in three cyanogenic plant species: cassava, almond and sorghum.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species

Pičmanová

Neilson

Motawia

et al. 2015

Biochemical Journal

119

126

View full text Add to dashboard Cite

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“…Resistance costs also include allocation costs, since resources have to be diverted away from concurrent needs, such as growth and reproduction (Strauss et al, 2002). However, costs may be reduced by auxiliary functions of secondary metabolites (Neilson et al, 2013) or by expressing resistance only when it is needed (inducible defence; Agrawal, 2005).…”

Section: Introductionmentioning

confidence: 99%

Herbivore-induced defence response in the brown seaweedFucus vesiculosus(Phaeophyceae): temporal pattern and gene expression

Flöthe

Molis

Kruse

et al. 2014

European Journal of Phycology

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This study aimed to reveal the dynamics of inducible anti-herbivory traits in the brown seaweed Fucus vesiculosus, in response to grazing by the isopod Idotea baltica. As the molecular basis of defence induction in seaweeds is poorly understood, a transcriptomic approach was used to gain insight into cellular processes underlying defence induction and thus promote the mechanistic understanding of anti-herbivory responses in seaweeds. In a 27 day feeding-assayed induction experiment, temporal patterns of the induced anti-herbivory resistance of F. vesiculosus were assessed under laboratory conditions. Feeding assays were performed at three day intervals, using fresh and reconstituted food. Microarray hybridizations investigating the expression of genes 3 days before, as well as at the same time as, feeding assays revealed a decreased palatability of previously grazed F. vesiculosus pieces compared with non-grazed control pieces. Despite permanent exposure to grazers, F. vesiculosus palatability varied over time. Non-grazed F. vesiculosus pieces were significantly preferred to grazed pieces after 18 and again after 27 days of previous grazing, while their relative palatability for isopods was comparable at all other times during the experiment. Relative to controls, 562/402 genes were ≥ 1.5-fold up-/down-regulated in seaweed pieces that were grazed for 18 days, i.e. when induction of defences was detected in feeding assays. Massive reprogramming of the regulatory expression orchestra (translation, transcription) as well as up-regulation of genes involved in lipid and carbohydrate metabolism, intracellular trafficking, defence and stress response was found. At the same time, down-regulation of photosynthesis was observed in grazed seaweed pieces. This study suggests a high level of temporal variability in induced anti-herbivory traits of F. vesiculosus and reveals increased expression of genes with putative defensive functions in conjunction with the reallocation of resources from primary to secondary metabolism.

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“…Another factor that may have contributed to the increase of shoot and root biomass is the direct effect of the application of essential oils. The use of some essential oils at certain concentrations may induce the growth of plants, insects and microorganisms, as verified by Bonaldo et al (2007), Neilson et al (2013), Haddi et al (2015) and .…”

Section: Resultsmentioning

confidence: 80%

Parapiptadenia rigida MYCORRHIZATION WITH SPORES OF Scleroderma citrinum

Steffen¹,

Steffen²,

Morais³

et al. 2017

CERNE

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Ectomycorrhizal fungal inoculation in forestry seedlings aids plant establishment and growth in the field. The objectives of this study were: to determine the mycorrhizal capacity of the ectomycorrhizal fungus Scleroderma citrinum in Parapiptadenia rigida (red angico) seedlings and to evaluate the viability of a mycorrhizal inoculation technique for forest seedlings involving the use of spores. Mature spores were inoculated in the substrate (75% soil and 25% carbonized rice husk), totaling 1.5 grams of fungal spores per liter of substrate. P. rigida seeds were sown in substrates inoculated or not inoculated with fungal spores in presence or absence of Pinus echinata and Eucalyptus citriodora essential oil: not inoculated (T1), inoculated (T2), inoculated more pine essential oil (T3), inoculated more eucalyptus essential oil (T4). Seedlings of Pinus elliottii were used for a positive control of mycorrhizal inoculation (T5) and not inoculated (T6) with fungal spores. At 90 days after sowing, the base stem diameter, height, fresh and dry weight of shoots and roots, percentage of root colonization and Dickson Index were determined. The presence of fungal structures in P. rigida and P. elliottii roots inoculated with S. citrinum spores was observed, demonstrating the occurrence of an ectomycorrhizal association. The application of pine and eucalyptus essential oils in the substrate increased the percentage of ectomycorrhizal colonization in P. rigida seedlings. The addition of S. citrinum mature spores in the substrate used for seedling production is a viable practice for ectomycorrhizal inoculation and it can be used in forest nurseries in controlled mycorrhization programs. MICORRIZAÇÃO DE Parapiptadenia rigida COM ESPOROS DE Scleroderma citrinumRESUMO: A inoculação de fungos ectomicorrízicos em mudas florestais beneficia o estabelecimento e crescimento das plantas no campo. Os objetivos do trabalho foram: determinar a capacidade de micorrização do fungo ectomicorrízico Scleroderma citrinum em mudas de Parapiptadenia rigida (angico-vermelho) e avaliar a viabilidade da técnica de inoculação micorrízica de mudas florestais através do uso de esporos. Esporos maduros foram inoculados ao substrato (75% solo e 25% casca de arroz carbonizada), totalizando 1,5 gramas de esporos de fungo por litro de substrato. Sementes de P. rigida foram semeadas em substratos inoculados ou não com esporos de S. citrinum, na presença ou ausência dos óleos essências de Pinus echinata e Eucalyptus citriodora: não inoculado (T1), inoculado (T2), inoculado mais adição de óleo essencial de pinus (T3), inoculado mais adição de óleo essencial de eucalipto (T4). Mudas de Pinus elliottii foram utilizadas para controle positivo da inoculação micorrízica, inoculadas (T5) e não inoculadas com esporos ectomicorrízicos (T6). Aos 90 dias após a semeadura, foram determinados o diâmetro do colo, a altura, as massas fresca e seca da parte aérea e das raízes, o percentual de colonização radicular e o Índice de Dickson. Observou-se presença de estru...

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Plant chemical defense: at what cost?

Cited by 313 publications

References 72 publications

A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species

A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species

Herbivore-induced defence response in the brown seaweedFucus vesiculosus(Phaeophyceae): temporal pattern and gene expression

Parapiptadenia rigida MYCORRHIZATION WITH SPORES OF Scleroderma citrinum

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