Combatting Sugar Beet Root Rot: Streptomyces Strains’ Efficacy against Fusarium oxysporum

Author:

Abdelghany Walaa R.1ORCID,Yassin Abeer S.2ORCID,Abu-Ellail Farrag F. B.2ORCID,Al-Khalaf Areej A.3,Omara Reda I.1ORCID,Hozzein Wael N.4ORCID

Affiliation:

1. Plant Pathology Research Institute, Agricultural Research Center, Giza 12619, Egypt

2. Sugar Crops Research Institute, Agricultural Research Center, Giza 12619, Egypt

3. Biology Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia

4. Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt

Abstract

Sugar beet root rot disease triggered by Fusarium oxysporum f. sp. radicis-betae is a destructive disease and dramatically affects the production and quality of the sugar beet industry. Employing beneficial microorganisms as a biocontrol strategy represents an eco-friendly and sustainable approach to combat various plant diseases. The distinct aspect of this study was to assess the antifungal and plant growth-promoting capabilities of recently isolated Streptomyces to treat sugar beet plants against infection with the phytopathogen F. oxysporum. Thirty-seven actinobacterial isolates were recovered from the rhizosphere of healthy sugar beet plants and screened for their potential to antagonize F. oxysporum in vitro. Two isolates SB3-15 and SB2-23 that displayed higher antagonistic effects were morphologically and molecularly identified as Streptomyces spp. Seed treatment with the fermentation broth of the selected Streptomyces strains SB3-15 and SB2-23 significantly reduced disease severity compared to the infected control in a greenhouse experiment. Streptomyces SB2-23 exhibited the highest protective activity with high efficacy ranging from 91.06 to 94.77% compared to chemical fungicide (86.44 to 92.36%). Furthermore, strain SB2-23 significantly increased plant weight, root weight, root length, and diameter. Likewise, it improves sucrose percentage and juice purity. As a consequence, the strain SB2-23’s intriguing biocontrol capability and sugar beet root growth stimulation present promising prospects for its utilization in both plant protection and enhancement strategies.

Funder

Princess Nourah bint Abdulrahman University

Publisher

MDPI AG

Reference77 articles.

1. Comparative pathogenicity and virulence of Fusarium species on sugar beet;Burlakoti;Plant Dis.,2012

2. Changes in root morphology with yield level of sugar beet;Hoffmann;Zuckerindustrie,2017

3. Occurrence and importance of root rots caused by fungal pathogens on sugar beet grown in Konya province of Turkey;Kaya;Zuckerindustrie,2020

4. Bacteria and yeast associated with sugar beet root rot at harvest in the intermountain west;Strausbaugh;Plant Dis.,2008

5. Fusarium Yellows Affects Postharvest Respiration Rate; Sucrose Concentration, and Invert Sugar in Sugarbeet;Campbell;J. Sugarbeet. Res.,2011

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3