SECONDARY COMPOUNDS RELEASED BY RHIZOSPHERIC BACTERIA EXHIBIT FUNGISTATIC EFFECTS AGAINST PHYTOPATHOGENIC FUNGUS.

Sh. Anwar; F. Mahmood; N. A. Tahir; G. F. Salih

doi:10.36103/ijas.v53i5.1631

Article Details

SECONDARY COMPOUNDS RELEASED BY RHIZOSPHERIC BACTERIA EXHIBIT FUNGISTATIC EFFECTS AGAINST PHYTOPATHOGENIC FUNGUS.

Authors:

Sh. Anwar | F. Mahmood | N. A. Tahir | G. F. Salih

Publisher:

University of Baghdad

Journal:

IRAQI JOURNAL OF AGRICULTURAL SCIENCES Vol.53 Issue 5, pp.1174-1183

Document Type:

Article

Publication Date:

10/2022

Document Language:

English

Document ID (Org No.):

2001371874

pISSN:

2410-0862

DOI:

10.36103/ijas.v53i5.1631

Keywords:

Abstract:

 The aim of conducted research was to devalute the inhibition effect of metabolites secreted by some Rhizospheric bacteria on the growth of two pathogenic fungi: Rhizoctonia solani and Fussarium solani, 330 bacteria isolates were obtained from the rhizosphere of the wheat, tomato, cowpea and Mt. Atlas mastic tree grown in the Sulaimani. Thirty-five isolates were screened for suppression of phytopathogeneic fungus. Results showed that most of these rhizospheric bacteria were have fungistatic potential in different degrees. The highest inhibition of the linear growth of fungi was noted for R. solani and F. solani, by Bacillus cereus LXJ73 (90.41%), Bacillus atropheaus SM-1 (75%) respectively. Six bacterial isolates were selected which have potential effect on the growth of the two studied fungi, five isolates belonging to the Bacillus genus and one isolate belonging to the genus Klebsiella. these isolates were molecularly confirmed by 16SrRNA, and their activity for inhibiting fungal growth were studied. The extracted metabolities analysied by Gas chromatography-Mass spectrometry (GC-MS), showing that extracts contain different volatile organic compounds as Pyrrolo[1,2-a]pyrazine-1,4-dione, hexahydro-, 2-Pentanone, 4-hydroxy-4-methyl-, Isosteviol methyl ester,2-methyl-, Butanoic acid, 3-methyl-, 3-Pyrrolidin-2-yl-propionic acid, 9-Octadecenamide, (Z)-, Hexadecane, Tridecane, 2,5-Piperazinedione, 3,6-bis(2-methyl propyl)-, 1,2-Benzenedicarboxylic acid, diisooctyl ester, Acetic acid, Dodecane, beta.-D-Glucopyranose, 1,6-anhydro-, Lauric acid, 2-(hexadecyloxy)-3-(octadecyloxy)propyl ester and cis-Vaccenic acid. The presence of these componuds indicate that all studied Bacillus species and Klebsiella michiganensis M1-3-11having antagonistic activity and they can be used for development of biocontrol agents to reducing the phytopathogenic problems and decreasing mycotoxine in contaminated crops.

Article Details

SECONDARY COMPOUNDS RELEASED BY RHIZOSPHERIC BACTERIA EXHIBIT FUNGISTATIC EFFECTS AGAINST PHYTOPATHOGENIC FUNGUS.

Authors:

Sh. Anwar | F. Mahmood | N. A. Tahir | G. F. Salih

Publisher:

University of Baghdad

Journal:

IRAQI JOURNAL OF AGRICULTURAL SCIENCES Vol.53 Issue 5, pp.1174-1183

Document Type:

Article

Publication Date:

10/2022

Document Language:

English

Document ID (Org No.):

2001371874

pISSN:

2410-0862

DOI:

10.36103/ijas.v53i5.1631

biocontrol

rhizospheric bacteria

fungistatic activity

volatile organic compounds

Issues

Article Details

SECONDARY COMPOUNDS RELEASED BY RHIZOSPHERIC BACTERIA EXHIBIT FUNGISTATIC EFFECTS AGAINST PHYTOPATHOGENIC FUNGUS.

Authors: Sh. Anwar | F. Mahmood | N. A. Tahir | G. F. Salih

Publisher: University of Baghdad

Journal: IRAQI JOURNAL OF AGRICULTURAL SCIENCES Vol.53 Issue 5, pp.1174-1183

Document Type: Article

Publication Date: 10/2022

Document Language: English

Document ID (Org No.): 2001371874

pISSN: 2410-0862

DOI: 10.36103/ijas.v53i5.1631

biocontrol

rhizospheric bacteria

fungistatic activity

volatile organic compounds

Issues

Authors:

Sh. Anwar | F. Mahmood | N. A. Tahir | G. F. Salih

Publisher:

University of Baghdad

Journal:

IRAQI JOURNAL OF AGRICULTURAL SCIENCES Vol.53 Issue 5, pp.1174-1183

Document Type:

Article

Publication Date:

10/2022

Document Language:

English

Document ID (Org No.):

2001371874

pISSN:

2410-0862

DOI:

10.36103/ijas.v53i5.1631