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Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions

Chitosan is capable of triggering the induction of defence responses of the plants. This study was carried out to investigate in vitro and in vivo antifungal activity of submicron chitosan dispersions and also to determine the mechanism of induced resistance in dragon fruit plants by strengthening o...

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Main Authors: Ali, Asgar, Zahid, Noosheen, Manickam, Sivakumar, Siddiqui, Yasmeen, Alderson, Peter G., Maqbool, Mehdi
Format: Article
Published: Elsevier 2014
Online Access:http://psasir.upm.edu.my/id/eprint/34171/
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spelling my.upm.eprints.341712015-12-07T08:31:24Z http://psasir.upm.edu.my/id/eprint/34171/ Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions Ali, Asgar Zahid, Noosheen Manickam, Sivakumar Siddiqui, Yasmeen Alderson, Peter G. Maqbool, Mehdi Chitosan is capable of triggering the induction of defence responses of the plants. This study was carried out to investigate in vitro and in vivo antifungal activity of submicron chitosan dispersions and also to determine the mechanism of induced resistance in dragon fruit plants by strengthening of cell wall and production of pathogenesis related proteins. Highest inhibition in radial mycelial growth (90.2%) was obtained by 600 nm droplet size at 1.0% chitosan concentration. None of the emulsifiers showed any antifungal effect during in vitro studies. Field studies showed the reduction of 22% disease incidence and 66% disease severity in anthracnose on dragon fruit plants treated with 600 nm droplet size as compared to control plants after one month of assessment. Lignin contents in cell wall of dragon fruit plants increased 2 folds in plants treated with 1.0% chitosan at 600 nm droplet size while 11 and 10 folds increase in β-1,3-glucanase and chitinase activity, respectively was also recorded in the plants inoculated with Colletotrichum gloeosporioides. The accumulation of lignin and higher level activity of pathogenesis related proteins in response to submicron chitosan dispersions may bolster in mounting effective resistance against the devastating disease of anthracnose. Elsevier 2014-09 Article PeerReviewed Ali, Asgar and Zahid, Noosheen and Manickam, Sivakumar and Siddiqui, Yasmeen and Alderson, Peter G. and Maqbool, Mehdi (2014) Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions. Crop Protection, 63. pp. 83-88. ISSN 0261-2194; ESSN: 1873-6904 10.1016/j.cropro.2014.05.009
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Chitosan is capable of triggering the induction of defence responses of the plants. This study was carried out to investigate in vitro and in vivo antifungal activity of submicron chitosan dispersions and also to determine the mechanism of induced resistance in dragon fruit plants by strengthening of cell wall and production of pathogenesis related proteins. Highest inhibition in radial mycelial growth (90.2%) was obtained by 600 nm droplet size at 1.0% chitosan concentration. None of the emulsifiers showed any antifungal effect during in vitro studies. Field studies showed the reduction of 22% disease incidence and 66% disease severity in anthracnose on dragon fruit plants treated with 600 nm droplet size as compared to control plants after one month of assessment. Lignin contents in cell wall of dragon fruit plants increased 2 folds in plants treated with 1.0% chitosan at 600 nm droplet size while 11 and 10 folds increase in β-1,3-glucanase and chitinase activity, respectively was also recorded in the plants inoculated with Colletotrichum gloeosporioides. The accumulation of lignin and higher level activity of pathogenesis related proteins in response to submicron chitosan dispersions may bolster in mounting effective resistance against the devastating disease of anthracnose.
format Article
author Ali, Asgar
Zahid, Noosheen
Manickam, Sivakumar
Siddiqui, Yasmeen
Alderson, Peter G.
Maqbool, Mehdi
spellingShingle Ali, Asgar
Zahid, Noosheen
Manickam, Sivakumar
Siddiqui, Yasmeen
Alderson, Peter G.
Maqbool, Mehdi
Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions
author_facet Ali, Asgar
Zahid, Noosheen
Manickam, Sivakumar
Siddiqui, Yasmeen
Alderson, Peter G.
Maqbool, Mehdi
author_sort Ali, Asgar
title Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions
title_short Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions
title_full Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions
title_fullStr Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions
title_full_unstemmed Induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions
title_sort induction of lignin and pathogenesis related proteins in dragon fruit plants in response to submicron chitosan dispersions
publisher Elsevier
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/34171/
_version_ 1643831073166065664
score 13.211869

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