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185714

Pathogenicity Evaluation of Bipolaris oryzae Isolates on Egyptian Rice Cultivars

Article

Last updated: 01 Jan 2025

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Subjects

-

Tags

Plant diseases

Abstract

The aim of this study was to evaluate the pathogenicity of Bipolaris oryzae, the causal agent of brown spot disease on Egyptian rice cultivars. Sample of rice were collected from 10 cultivars namely (Sakha 101, Sakha 104, Sakha 106, Giza 176, Giza 177, Giza 178, Giza 182, Egyptian hybrid and Egyptian Yasmin). Fungal genera were recovered from the rice samples. These fungi were identified as(Curvularia lunata, Asprgillus niger, Asprgillus flavus, Penicillium sp., Trichoderma, Alternaria alternata, Bipolaris oryzae, Fusarium verticillioides, Fusarium chlamydosporum, Rhizopus oryzae, Curvularia tuberculate, Bipolaris hawaiiensis, Cephaliophora tropica and Negrospora sp.). Out of the fourteen fungi,Bipolaris oryzae (B. oryzae) was characterized as one of the highest frequently exists fungus. Ten isolates of B. oryzae were investigated in terms of spore dimension, number of septa of conidia, linear growth and culture color. These ten B. oryzae isolates were used in the pathogenicity test on five commercial rice cultivars (Sakha 108, Sakha super 300, Giza 177, Giza 182 and Egyptian hybrid. The disease severity was assessed 7days after inoculation, 21-days-old rice plants. The most aggressive B. oryzae isolates were B.o10, B.o7, B.o9 and B.o8. On the other hand, the lowest aggressive once were B.o2, and B.o1. Screening of the B. oryzae isolates on the commercial rice cultivars in the rice cultivation area in Egypt could help develop prediction plane of brown spot disease, ultimately, facilitate the most proper decision for rice cultivars to be cultivated. 
 

DOI

10.21608/asejaiqjsae.2021.185714

Keywords

rice, pathogenicity, Bipolaris oryzae, Egypt

Authors

First Name

Sherihan M.

Last Name

M. Bekheet

MiddleName

-

Affiliation

Department of Plant Pathology, Faculty of Agriculture, Alexandria University, El-Shatby 21545, Alexandria, Egypt Plant Pathology Institute, Agriculture Research Center, 12619, Giza, Egypt

Email

sheri_2222@yahoo.com

City

-

Orcid

-

First Name

Ahmed F.

Last Name

El-Bebany

MiddleName

-

Affiliation

Department of Plant Pathology, Faculty of Agriculture, Alexandria University, El-Shatby 21545, Alexandria, Egypt

Email

-

City

-

Orcid

-

First Name

Sayed S.

Last Name

Aboshosha

MiddleName

-

Affiliation

Department of Plant Pathology, Faculty of Agriculture, Alexandria University, Egypt.

Email

sayed.aboshosha@yahoo.com

City

-

Orcid

-

First Name

Mohsen M.

Last Name

Saleh

MiddleName

-

Affiliation

Plant Pathology Institute, Agriculture Research Center, 12619, Giza, Egypt

Email

-

City

-

Orcid

-

First Name

Amany H.

Last Name

M. Shams

MiddleName

-

Affiliation

Department of Plant Pathology, Faculty of Agriculture, Alexandria University, El-Shatby 21545, Alexandria, Egypt

Email

-

City

-

Orcid

-

Volume

42

Article Issue

3

Related Issue

26297

Issue Date

2021-09-01

Receive Date

2021-06-20

Publish Date

2021-09-30

Page Start

609

Page End

617

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 42_Issue 3_Pages 609-617.pdf

PDF . 471.1kB

Link

https://asejaiqjsae.journals.ekb.eg/article_185714.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=185714

Order

3

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Pathogenicity Evaluation of Bipolaris oryzae Isolates on Egyptian Rice Cultivars

Details

Type

Article

Created At

22 Jan 2023