Alterations in plant sugar metabolism: signatory of pathogen attack

Kanwar, Poonam; Jha, Gopaljee

doi:10.1007/s00425-018-3018-3

Cited by 64 publications

(40 citation statements)

References 161 publications

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“…Moreover, the different sugars might be finely sensed and might provide a mechanism to conduct carbon flux during viral infection (Sade et al, 2013; Hulsmans et al 2016). Besides metabolic flux diversion, another possible source of soluble sugar could be related to alteration of sugar transporters, which convert these `source` leaves into `sink` tissues (Kanwar and Jha 2019), or a gluconeogenesis process induction. These possible sugar sources are not mutually exclusive but might be operating in combination, and have to be explored in future studies.…”

Section: Discussionmentioning

confidence: 99%

Cassava common mosaic viruscauses photosynthetic alterations associated with changes in chloroplast ultrastructure and carbohydrate metabolism of cassava plants

Luna

et al. 2020

Preprint

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Section: Discussionmentioning

confidence: 99%

Cassava common mosaic viruscauses photosynthetic alterations associated with changes in chloroplast ultrastructure and carbohydrate metabolism of cassava plants

Luna

et al. 2020

Preprint

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“…7). It is believed that depletion of carbohydrates enhances plant susceptibility to a pathogen infection (Morkunas and Ratajczak 2014, Bezrutczyk et al 2018, Kanwar and Jha 2018. A decrease in the content of total sugars and reducing sugars in B. juncea during progressive A. brassicae infection (Mathpal et al 2011) and Albugo candida infection (Mishra et al 2009) was reported.…”

Section: Black Spot Disease Influences Brassica Juncea Primary Metabomentioning

confidence: 99%

Leaf position‐dependent effect of Alternaria brassicicola development on host cell death, photosynthesis and secondary metabolites in Brassica juncea

Macioszek

Wielanek

Morkunas

et al. 2019

Physiologia Plantarum

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During the first 24 hours of infection, Alternaria brassicicola developmental parameters such as conidial germination, germ tubes and appressoria formation on each of the five mature Brassica juncea leaves, correlated with a leaf position showing stronger development of the pathogen on older leaves than on young ones. As a consequence of fungal development, the black spot disease was observed during 96 hours of infection on a macroscopic scale, as well as via confocal microscopy. Degradation of the chloroplast thylakoids and plastoglobule appearance during infection, followed by the decrease in chlorophyll a fluorescence parameters i.e. maximum quantum yield of PSII (Fv/Fm), non‐photochemical quenching (NPQ) and chlorophyll a:b ratio, have been observed. Also, after an initial increase of carbohydrates (glucose, fructose and sucrose), content far below the respective control values was found. The content of secondary metabolites such as flavonoids and glucosinolates increased in a leaf position‐dependent manner in infected leaves, with a lower level in older leaves than in younger ones. Although, the total phenolic compounds (TPCs) content did not differ significantly in infected leaves compared to control leaves, TPCs level in both control and infected leaves was leaf position‐dependent. To the best of our knowledge, this is the first report on leaf position‐dependent effect on the B. juncea biochemical response to A. brassicicola infection.

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“…The carbohydrate metabolism was affected also by this adaptation: the increase of sucrose, which is usually coupled with a reduction of fructose levels, has been reported in literature to be in indication of the plant to store energy to be utilized for the production of molecules to be used against pathogens [50].…”

Section: Resultsmentioning

confidence: 99%

NMR-Based Metabolomic Comparison of Brassica oleracea (Var. italica): Organic and Conventional Farming

Lucarini¹,

Cocco

Raguso

et al. 2020

Foods

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Brassicaceae family provides several crops which are worldwide known for their interesting phytochemical profiles, especially in terms of content of glucosinolates. These secondary metabolites show several beneficial effects toward consumers’ health, and several studies have been conducted to identify cultivation factors affecting their content in crops. One of the agronomic practices which is attracting growing interest is the organic one, which consists in avoiding the use of mineral fertilizers as well as pesticides. The aim of this study is to define the metabolic profile of Brassica oleracea (var. italica) and to compare the samples grown using organic and conventional fertilization methods. The hydroalcoholic and organic extracts of the samples have been analyzed by NMR spectroscopy. Forty-seven metabolites belonging to the categories of organic acids, amino acids, carbohydrates, fatty acids, sterols, and other molecules have been identified. Thirty-seven metabolites have been quantified. Univariate and multivariate PCA analyses allowed to observe that the organic practice influenced the nitrogen transport, the carbohydrate metabolism, the glucosinolate content and the phenylpropanoid pathway in B. oleracea (var. italica).

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Alterations in plant sugar metabolism: signatory of pathogen attack

Cited by 64 publications

References 161 publications

Cassava common mosaic viruscauses photosynthetic alterations associated with changes in chloroplast ultrastructure and carbohydrate metabolism of cassava plants

Cassava common mosaic viruscauses photosynthetic alterations associated with changes in chloroplast ultrastructure and carbohydrate metabolism of cassava plants

Leaf position‐dependent effect of Alternaria brassicicola development on host cell death, photosynthesis and secondary metabolites in Brassica juncea

NMR-Based Metabolomic Comparison of Brassica oleracea (Var. italica): Organic and Conventional Farming

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