Beta
ManageSearchChatDiscover
261072

Controlling The Bacterial Leaf Spot Disease in Pepper Caused by Xanthomonas vesicatoria Using Natural Bacteritoxicants

Article

Last updated: 22 Jan 2023

OverviewSimilar Items

Subjects

-

Tags

-

Abstract

Isolation trials of bacteria associated to leaf spot collected from various locations in Egypt yielded 39 bacterial isolates.  Following purification, the isolated bacteria were identified as Bacillus spp. (15 isolates), Pseudomonas spp. (12 isolates), and Xanthomonas campestris pv. vesicatoria "Xcv" (12 isolates).  Both Bacillus spp. and Pseudomonas spp. had the higher frequency, being 38.46 and 30.77%, respectively than Xcv (30.77%). I1, I3, I4, I6, I9, I10, I11, and I12 had a low pathogenicity index exclusively on pepper plants. The antibacterial capabilities of five tested bacteriotoxicants were evaluated against Xcv in vitro. Copper oxychloride had the greatest increase in the inhibitory zone, followed by oxytetracycline then hydrogen peroxide, and clove oil treatments, being 6.32, 5.45, 5.14, and 4.52 mm, respectively. In vivo, all treatments examined outperformed the control treatment in terms of reducing bacterial leaf spot disease evaluation. All evaluated treatments increased total pepper production. Copper-treated control treatment resulted in the greatest increase in total fruit yield (23.68 kg/plot) during two successive growing seasons (2019/2020 and 2020/2021). The oxytetracycline, curcumin, clove oil, and hydrogen peroxide treatments all had a great effect on increasing total fruit yield. The investigated treatments enhanced total phenols content and oxidative enzymes activity in pepper leaves as compared to the treated-copper control and untreated control treatments. Curcumin, followed by clove oil and then hydrogen peroxide, provided the greatest rise in the determined oxidative enzymes activities in leaves. In terms of vitamin-C increase percentage, all evaluated bacteriotoxicants enhanced vitamin-C content.

DOI

10.21608/eajbsf.2022.261072

Keywords

Bacterial leaf spot - Xanthomonas campestris pv. vesicatoria, oxytetracycline - hydrogen peroxide - clove oil- total phenols- oxidative enzymes

Authors

First Name

Ibrahim

Last Name

EL-Fiki

MiddleName

A. I.

Affiliation

Plant Pathology Department, Faculty of Agriculture, Moshtoher, Benha University, Benha13511, Egypt

Email

ibrahim.elfiki@fagr.bu.edu.eg

City

-

Orcid

-

First Name

Youssef,

Last Name

M.

MiddleName

Maryan,

Affiliation

Plant Pathology Department, Faculty of Agriculture, Cairo University, 12612 Giza, Egypt.

Email

maryan.youssef@agr.cu.edu.eg

City

-

Orcid

0000-0002-1944-669X

First Name

Hassan

Last Name

Eman

MiddleName

O.

Affiliation

Plant Pathology Department, Faculty of Agriculture, Moshtoher, Benha University, Benha13511, Egypt

Email

eman.ali@fagr.bu.edu.eg

City

benha

Orcid

0000-0002-8145-2169

Volume

14

Article Issue

1

Related Issue

29915

Issue Date

2022-06-01

Receive Date

2022-03-30

Publish Date

2022-06-23

Page Start

229

Page End

245

Print ISSN

2090-0864

Online ISSN

2090-0791

Article File

EAJBSF_Volume 14_Issue 1_Pages 229-245.pdf

PDF . 791.8kB

Link

https://eajbsf.journals.ekb.eg/article_261072.html

Detail API

https://eajbsf.journals.ekb.eg/service?article_code=261072

Order

21

Type

Original Article

Type Code

6

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control

Publication Link

https://eajbsf.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023