Meyerozyma guilliermondii SQUCC-33Y suppresses postharvest fruit rot of strawberry caused by Alternaria alternata

B. A.A. Al-Rahbi; A. M. Al-Sadi; I. H. Al-Mahmooli; S. S. Al-Maawali; N. M.T. Al-Mahruqi; R. Velazhahan

doi:10.1007/s13313-021-00779-z

Meyerozyma guilliermondii SQUCC-33Y suppresses postharvest fruit rot of strawberry caused by Alternaria alternata

B. A.A. Al-Rahbi, A. M. Al-Sadi, I. H. Al-Mahmooli, S. S. Al-Maawali, N. M.T. Al-Mahruqi, R. Velazhahan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Strawberry fruits are vulnerable to infection by a broad range of fungal pathogens before and after harvest. In this study, Alternaria spp. strains associated with fruit rot of strawberry were isolated and characterized and the potential of the antagonistic yeast Meyerozyma guilliermondii strain SQUCC-33Y for the control of fruit rot of strawberry was evaluated. A total of seven isolates of Alternaria (STR2-STR8) were isolated from strawberry fruits showing symptoms of rot. On the basis of internal transcribed spacer (ITS) ribosomal RNA (rRNA) sequences, these fungal isolates were identified as Alternaria alternata. Pathogenicity tests revealed that most of the strains of A. alternata were pathogenic to strawberry. The measurement of disease severity on strawberry fruits revealed significant differences in the virulence between A. alternata strains. M. guilliermondii restricted the growth of all the strains of A. alternata in dual culture assay. Postharvest treatment of strawberry fruits with M. guilliermondii significantly reduced the fruit rot lesion size caused by A. alternata. This antagonistic yeast has the potential for use as a biofungicide for the control of A. alternata-induced postharvest fruit rot of strawberry.

Original language	English
Pages (from-to)	349-352
Number of pages	4
Journal	Australasian Plant Pathology
Volume	50
Issue number	3
DOIs	https://doi.org/10.1007/s13313-021-00779-z
Publication status	Published - Feb 23 2021
Externally published	Yes

Keywords

Alternaria alternata
Biological control
Fruit rot
Meyerozyma guilliermondii
Strawberry

ASJC Scopus subject areas

Plant Science

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10.1007/s13313-021-00779-z

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@article{4eb891735d7243fb9a37069ccfd54181,

title = "Meyerozyma guilliermondii SQUCC-33Y suppresses postharvest fruit rot of strawberry caused by Alternaria alternata",

abstract = "Strawberry fruits are vulnerable to infection by a broad range of fungal pathogens before and after harvest. In this study, Alternaria spp. strains associated with fruit rot of strawberry were isolated and characterized and the potential of the antagonistic yeast Meyerozyma guilliermondii strain SQUCC-33Y for the control of fruit rot of strawberry was evaluated. A total of seven isolates of Alternaria (STR2-STR8) were isolated from strawberry fruits showing symptoms of rot. On the basis of internal transcribed spacer (ITS) ribosomal RNA (rRNA) sequences, these fungal isolates were identified as Alternaria alternata. Pathogenicity tests revealed that most of the strains of A. alternata were pathogenic to strawberry. The measurement of disease severity on strawberry fruits revealed significant differences in the virulence between A. alternata strains. M. guilliermondii restricted the growth of all the strains of A. alternata in dual culture assay. Postharvest treatment of strawberry fruits with M. guilliermondii significantly reduced the fruit rot lesion size caused by A. alternata. This antagonistic yeast has the potential for use as a biofungicide for the control of A. alternata-induced postharvest fruit rot of strawberry.",

keywords = "Alternaria alternata, Biological control, Fruit rot, Meyerozyma guilliermondii, Strawberry",

author = "Al-Rahbi, {B. A.A.} and Al-Sadi, {A. M.} and Al-Mahmooli, {I. H.} and Al-Maawali, {S. S.} and Al-Mahruqi, {N. M.T.} and R. Velazhahan",

note = "Funding Information: This study was funded, in part, by Sultan Qaboos University and The Research Council, Sultanate of Oman grants CR/AGR/CROP/19/01 and RC/RG-AGR/CROP/19/02. Publisher Copyright: {\textcopyright} 2021, Australasian Plant Pathology Society Inc. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "2021",

month = feb,

day = "23",

doi = "10.1007/s13313-021-00779-z",

language = "English",

volume = "50",

pages = "349--352",

journal = "Australasian Plant Pathology",

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T1 - Meyerozyma guilliermondii SQUCC-33Y suppresses postharvest fruit rot of strawberry caused by Alternaria alternata

AU - Al-Rahbi, B. A.A.

AU - Al-Sadi, A. M.

AU - Al-Mahmooli, I. H.

AU - Al-Maawali, S. S.

AU - Al-Mahruqi, N. M.T.

AU - Velazhahan, R.

N1 - Funding Information: This study was funded, in part, by Sultan Qaboos University and The Research Council, Sultanate of Oman grants CR/AGR/CROP/19/01 and RC/RG-AGR/CROP/19/02. Publisher Copyright: © 2021, Australasian Plant Pathology Society Inc. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/2/23

Y1 - 2021/2/23

N2 - Strawberry fruits are vulnerable to infection by a broad range of fungal pathogens before and after harvest. In this study, Alternaria spp. strains associated with fruit rot of strawberry were isolated and characterized and the potential of the antagonistic yeast Meyerozyma guilliermondii strain SQUCC-33Y for the control of fruit rot of strawberry was evaluated. A total of seven isolates of Alternaria (STR2-STR8) were isolated from strawberry fruits showing symptoms of rot. On the basis of internal transcribed spacer (ITS) ribosomal RNA (rRNA) sequences, these fungal isolates were identified as Alternaria alternata. Pathogenicity tests revealed that most of the strains of A. alternata were pathogenic to strawberry. The measurement of disease severity on strawberry fruits revealed significant differences in the virulence between A. alternata strains. M. guilliermondii restricted the growth of all the strains of A. alternata in dual culture assay. Postharvest treatment of strawberry fruits with M. guilliermondii significantly reduced the fruit rot lesion size caused by A. alternata. This antagonistic yeast has the potential for use as a biofungicide for the control of A. alternata-induced postharvest fruit rot of strawberry.

AB - Strawberry fruits are vulnerable to infection by a broad range of fungal pathogens before and after harvest. In this study, Alternaria spp. strains associated with fruit rot of strawberry were isolated and characterized and the potential of the antagonistic yeast Meyerozyma guilliermondii strain SQUCC-33Y for the control of fruit rot of strawberry was evaluated. A total of seven isolates of Alternaria (STR2-STR8) were isolated from strawberry fruits showing symptoms of rot. On the basis of internal transcribed spacer (ITS) ribosomal RNA (rRNA) sequences, these fungal isolates were identified as Alternaria alternata. Pathogenicity tests revealed that most of the strains of A. alternata were pathogenic to strawberry. The measurement of disease severity on strawberry fruits revealed significant differences in the virulence between A. alternata strains. M. guilliermondii restricted the growth of all the strains of A. alternata in dual culture assay. Postharvest treatment of strawberry fruits with M. guilliermondii significantly reduced the fruit rot lesion size caused by A. alternata. This antagonistic yeast has the potential for use as a biofungicide for the control of A. alternata-induced postharvest fruit rot of strawberry.

KW - Alternaria alternata

KW - Biological control

KW - Fruit rot

KW - Meyerozyma guilliermondii

KW - Strawberry

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IS - 3

ER -

Meyerozyma guilliermondii SQUCC-33Y suppresses postharvest fruit rot of strawberry caused by Alternaria alternata

Abstract

Keywords

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