Cloning, overexpression and functional characterization of a class III chitinase from Casuarina glauca nodules

Inês Graça, Jingsi Liang, Márcia Guilherme, Pedro Tavares, Maria Manuela Ferreira-Pinto, Ana M.P. Melo, Ana I. Ribeiro-Barros, Alice S. Pereira

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This work was based on the study of a defense-related protein involved in actinorhizal symbiosis established between Casuarina glauca and a nitrogen fixing bacterium from the Frankia genus, namely a class III chitinase (CgCHI3). In order to understand its role during the symbiotic process, recombinant CgCHI3 was overexpressed in Escherichia coli and subsequently characterized. In this context, the recombinant protein showed endochitinase, β-1,3-glucanase, β-1,4 glucanase and lysozyme activity, as well as the capacity to inhibit the growth of non-symbiotic bacteria (E. coli strains BL21 and K12, Paracoccus denitrificans and Bacillus subtilis). It exhibited no antifungal activity against Colletotrichum gloeosporioides, Botrytis cinerea, Trichoderma viride and Fusarium oxysporum and did not affect the growth of the symbiotic bacteria Frankia and Rhizobium, neither the performance of Frankia nodulation factors. These results suggest that recombinant CgCHI3 is a multifunctional protein involved in the infection process, specifically in the lysis of the cell wall during intracellular penetration, or in the formation of the infection thread, or any other modification of the cells in order to accommodate the symbiotic bacteria.

Original languageEnglish
Pages (from-to)139-148
Number of pages10
JournalSymbiosis
Volume70
Issue number1-3
DOIs
Publication statusPublished - 1 Nov 2016

Fingerprint

Frankia
Casuarina glauca
chitinase
Organism Cloning
Bacteria
bacteria
Paracoccus denitrificans
Colletotrichum
Escherichia coli
Escherichia coli K12
Botrytis
Chitinases
nitrogen-fixing bacteria
Rhizobium
Trichoderma
Trichoderma viride
Symbiosis
Glomerella cingulata
Fusarium
Muramidase

Keywords

  • Casuarina glauca
  • Cellulase and glucanase
  • Chitinase class III
  • Frankia
  • Glycoside hydrolase protein family
  • Plant-defense
  • Symbiosis

Cite this

Graça, Inês ; Liang, Jingsi ; Guilherme, Márcia ; Tavares, Pedro ; Ferreira-Pinto, Maria Manuela ; Melo, Ana M.P. ; Ribeiro-Barros, Ana I. ; Pereira, Alice S. / Cloning, overexpression and functional characterization of a class III chitinase from Casuarina glauca nodules. In: Symbiosis. 2016 ; Vol. 70, No. 1-3. pp. 139-148.
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Graça, I, Liang, J, Guilherme, M, Tavares, P, Ferreira-Pinto, MM, Melo, AMP, Ribeiro-Barros, AI & Pereira, AS 2016, 'Cloning, overexpression and functional characterization of a class III chitinase from Casuarina glauca nodules', Symbiosis, vol. 70, no. 1-3, pp. 139-148. https://doi.org/10.1007/s13199-016-0403-1

Cloning, overexpression and functional characterization of a class III chitinase from Casuarina glauca nodules. / Graça, Inês; Liang, Jingsi; Guilherme, Márcia; Tavares, Pedro; Ferreira-Pinto, Maria Manuela; Melo, Ana M.P.; Ribeiro-Barros, Ana I.; Pereira, Alice S.

In: Symbiosis, Vol. 70, No. 1-3, 01.11.2016, p. 139-148.

Research output: Contribution to journalArticle

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T1 - Cloning, overexpression and functional characterization of a class III chitinase from Casuarina glauca nodules

AU - Graça, Inês

AU - Liang, Jingsi

AU - Guilherme, Márcia

AU - Tavares, Pedro

AU - Ferreira-Pinto, Maria Manuela

AU - Melo, Ana M.P.

AU - Ribeiro-Barros, Ana I.

AU - Pereira, Alice S.

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KW - Glycoside hydrolase protein family

KW - Plant-defense

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