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Pathogen-induced AdDjSKI of the wild peanut, Arachisdiogoi, potentiates tolerance of multiple stresses in E. coli andtobacco
University of Hyderabad.
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2018 (English)In: Plant Science, Vol. 272, p. 62-74Article in journal (Refereed) Published
Abstract [en]

A gene encoding a serine-rich DnaJIII protein called AdDjSKI that has a 4Fe-4S cluster domain was found to be differentially upregulated in the wild peanut, Arachis diogoi in its resistance responses against the late leaf spot causing fungal pathogen Phaeoisariopsis personata when compared with the cultivated peanut, Arachis hypogaea. AdDjSKI is induced in multiple stress conditions in A. diogoi. Recombinant E. coli cells expressing AdDjSKI showed better growth kinetics when compared with vector control cells under salinity, osmotic, acidic and alkaline stress conditions. Overexpression of this type three J-protein potentiates not only abiotic stress tolerance in Nicotiana tabacum var. Samsun, but also enhances its disease resistance against the phytopathogenic fungi Phytophthora parasitica pv nicotianae and Sclerotinia sclerotiorum. In the present study we show transcriptional upregulation of APX, Mn-SOD and HSP70 under heat stress and increased transcripts of PR genes in response to fungal infection. This transmembrane-domain-containing J protein displays punctate localization in chloroplasts. AdDjSKI appears to ensure proper folding of proteins associated with the photosynthetic machinery under stress.

Place, publisher, year, edition, pages
2018. Vol. 272, p. 62-74
Keywords [en]
AdDjSKI; Arachis diogoi, DnaJ/HSP40, Multiple stress tolerance, Nicotiana tabacum var Samsun
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:umu:diva-156687DOI: 10.1016/j.plantsci.2018.03.033PubMedID: 29807607OAI: oai:DiVA.org:umu-156687DiVA, id: diva2:1291215
Available from: 2019-02-22 Created: 2019-02-22 Last updated: 2019-03-01Bibliographically approved

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Available from 2020-07-01 00:00

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Bag, Pushan

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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