• Home
  • Browse
    • Current Issue
    • By Issue
    • By Author
    • By Subject
    • Author Index
    • Keyword Index
  • Journal Info
    • About Journal
    • Aims and Scope
    • Editorial Board
    • Publication Ethics
    • Peer Review Process
  • Guide for Authors
  • Submit Manuscript
  • Contact Us
 
  • Login
  • Register
Home Articles List Article Information
  • Save Records
  • |
  • Printable Version
  • |
  • Recommend
  • |
  • How to cite Export to
    RIS EndNote BibTeX APA MLA Harvard Vancouver
  • |
  • Share Share
    CiteULike Mendeley Facebook Google LinkedIn Twitter
Journal of Plant Protection and Pathology
arrow Articles in Press
arrow Current Issue
Journal Archive
Volume Volume 16 (2025)
Volume Volume 15 (2024)
Volume Volume 14 (2023)
Volume Volume 13 (2022)
Volume Volume 12 (2021)
Volume Volume 11 (2020)
Volume Volume 10 (2019)
Volume Volume 9 (2018)
Volume Volume 8 (2017)
Volume Volume 7 (2016)
Volume Volume 6 (2015)
Volume Volume 5 (2014)
Issue Issue 12
Issue Issue 11
Issue Issue 10
Issue Issue 9
Issue Issue 8
Issue Issue 7
Issue Issue 6
Issue Issue 5
Issue Issue 4
Issue Issue 3
Issue Issue 2
Issue Issue 1
Volume Volume 4 (2013)
Volume Volume 3 (2012)
Volume Volume 2 (2011)
Volume Volume 1 (2010)
Volume Volume 34 (2009)
Volume Volume 33 (2008)
Volume Volume 32 (2007)
Volume Volume 31 (2006)
Volume Volume 30 (2005)
Volume Volume 29 (2004)
Volume Volume 28 (2003)
Volume Volume 27 (2002)
Volume Volume 26 (2001)
Volume Volume 25 (2000)
Aly, A., El – Wakil, A., Omar, M., Asran, A. (2014). EVALUATION OF RELATIONSHIP BETWEEN CHITINASE PRODUCTION AND BIOCONTROL CAPACITY OF TRICHODERMA ISOLATES. Journal of Plant Protection and Pathology, 5(6), 803-815. doi: 10.21608/jppp.2014.87993
A. Aly; A. El – Wakil; M. Omar; Amal Asran. "EVALUATION OF RELATIONSHIP BETWEEN CHITINASE PRODUCTION AND BIOCONTROL CAPACITY OF TRICHODERMA ISOLATES". Journal of Plant Protection and Pathology, 5, 6, 2014, 803-815. doi: 10.21608/jppp.2014.87993
Aly, A., El – Wakil, A., Omar, M., Asran, A. (2014). 'EVALUATION OF RELATIONSHIP BETWEEN CHITINASE PRODUCTION AND BIOCONTROL CAPACITY OF TRICHODERMA ISOLATES', Journal of Plant Protection and Pathology, 5(6), pp. 803-815. doi: 10.21608/jppp.2014.87993
Aly, A., El – Wakil, A., Omar, M., Asran, A. EVALUATION OF RELATIONSHIP BETWEEN CHITINASE PRODUCTION AND BIOCONTROL CAPACITY OF TRICHODERMA ISOLATES. Journal of Plant Protection and Pathology, 2014; 5(6): 803-815. doi: 10.21608/jppp.2014.87993

EVALUATION OF RELATIONSHIP BETWEEN CHITINASE PRODUCTION AND BIOCONTROL CAPACITY OF TRICHODERMA ISOLATES

Article 13, Volume 5, Issue 6, June 2014, Page 803-815  XML PDF (525.47 K)
Document Type: Original Article
DOI: 10.21608/jppp.2014.87993
View on SCiNiTO View on SCiNiTO
Authors
A. Aly; A. El – Wakil; M. Omar; Amal Asran
Plant Pathol. Res. Instit., Agric. Res. Center, Giza, Egypt
Abstract
Twenty-four fungi were isolated from five plant hosts collected from 15 governorates. The mean percentage of fungal recovery from hosts showed that Trichoderma spp. (35.98%) were the most dominant fungi. The other fungi occurred at frequencies ranged from 0.07 to 17.67%. Occurrence of Trichoderma spp. was negatively correlated with incidence of five pathogenic fungi. However, the significant correlation was observed between isolation frequency of Trichoderma spp. and isolation frequency of Fusarium spp. (r= -0.57, p= 0.03). Fifteen isolates of Trichoderma spp. were screened for their biocontrol capacity against soil-borne fungal pathogens under greenhouse conditions by using eight pathosystems. These isolates showed various levels of antagonism within each pathosystem. When the same isolates were in-vitroscreened for chitinase activity, 20% of the isolates were high producers, 40% were medium producers, and 40% were low producers. Regression analysis was used to study the effect of chitinase activity (independent variable) on percentage of surviving seedlings (dependent variable) in each pathosystem. In most pathosystems, the in-vitro efficiency of Trichoderma isolates in producing chitinase was not significantly correlated with the percentage of surviving seedlings, which was used as a parameter for evaluating the antagonistic activity of Trichoderma isolates under greenhouse conditions. This finding may indicate that the in-vitro chitinase activity of Trichoderma isolates is of no practical value because it cannot be used as a criterion to predict their in-vivo performance. Grouping the isolates by cluster analysis, based on their biocontrol patterns, was not related to their chitinase activity. This result suggests that chitinase may not be involved in the biocontrol process of the tested isolates. Similarly, grouping the isolates by cluster analysis, based on their RAPD banding patterns, was not related to their chitinase activity. This result indicates that RAPD banding patterns were unable to differentiate among the isolates based on their chitinase activity.
Statistics
Article View: 122
PDF Download: 362
Home | Glossary | News | Aims and Scope | Sitemap
Top Top

Journal Management System. Designed by NotionWave.