Screening of Amaranthus sp. Varieties for Resistance to Bacterial Wilt Caused by Ralstonia solanacearum

Bacterial wilt, caused by Ralstonia solanacearum, is an emerging constraint in amaranth production in Benin. Host resistance is the most sustainable disease control measure. Ten amaranth varieties including A2002, Bresil (B) -Sel, Madiira 2, AC-NL, GARE ES13-7, Madiira 1, UG-AMES1...

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Autores principales:	Rachidatou Sikirou, Marie Epiphane Dossoumou, Judith Honfoga, Victor Afari-Sefa, Ramasamy Srinivasan, Mathews Paret, Wubetu Bihon
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	bacterial wilt <i>Ralstonia solanacearum</i> amaranth screening resistance Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/837835051a72463b847abc642dd2201c
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spelling	oai:doaj.org-article:837835051a72463b847abc642dd2201c2021-11-25T17:47:24ZScreening of <i>Amaranthus</i> sp. Varieties for Resistance to Bacterial Wilt Caused by <i>Ralstonia solanacearum</i>10.3390/horticulturae71104652311-7524https://doaj.org/article/837835051a72463b847abc642dd2201c2021-11-01T00:00:00Zhttps://www.mdpi.com/2311-7524/7/11/465https://doaj.org/toc/2311-7524Bacterial wilt, caused by <i>Ralstonia solanacearum</i>, is an emerging constraint in amaranth production in Benin. Host resistance is the most sustainable disease control measure. Ten amaranth varieties including A2002, Bresil (B) -Sel, Madiira 2, AC-NL, GARE ES13-7, Madiira 1, UG-AMES13-2, AM-NKGN, IP-5-Sel and a local variety from Benin were screened for resistance to bacterial wilt. The study was conducted in a screen house and in the naturally contaminated open field during a consecutive rainy and dry season using a randomized complete block design with four and three replications, respectively. In the screen house, plants were inoculated by drenching a 40 mL of bacterial suspension containing 10<sup>8</sup> CFU/mL of <i>R. solanacearum</i> strain NCBI 5 GenBank N° MH397250 at the collar region. The bacterial wilt incidence (BWI) and the area under the disease progress curve (AUDPC) suggested differential reactions of amaranth varieties to the pathogen. BWI and AUDPC were low for UG-AMES13-2, moderate for Madiira 2, AM-NKGN and the local variety and very high for A2002, Bresil (B) -Sel, AC-NL, GARE ES13-7, Madiira 1 and IP-5-Sel. The World Vegetable Center’s UG-AMES13-2 can be considered as first choice, which is resistant to <i>R. solanacearum</i>, and should be scaled up for seed production towards supporting farmers.Rachidatou SikirouMarie Epiphane DossoumouJudith HonfogaVictor Afari-SefaRamasamy SrinivasanMathews ParetWubetu BihonMDPI AGarticlebacterial wilt<i>Ralstonia solanacearum</i>amaranthscreeningresistancePlant cultureSB1-1110ENHorticulturae, Vol 7, Iss 465, p 465 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bacterial wilt <i>Ralstonia solanacearum</i> amaranth screening resistance Plant culture SB1-1110
spellingShingle	bacterial wilt <i>Ralstonia solanacearum</i> amaranth screening resistance Plant culture SB1-1110 Rachidatou Sikirou Marie Epiphane Dossoumou Judith Honfoga Victor Afari-Sefa Ramasamy Srinivasan Mathews Paret Wubetu Bihon Screening of <i>Amaranthus</i> sp. Varieties for Resistance to Bacterial Wilt Caused by <i>Ralstonia solanacearum</i>
description	Bacterial wilt, caused by <i>Ralstonia solanacearum</i>, is an emerging constraint in amaranth production in Benin. Host resistance is the most sustainable disease control measure. Ten amaranth varieties including A2002, Bresil (B) -Sel, Madiira 2, AC-NL, GARE ES13-7, Madiira 1, UG-AMES13-2, AM-NKGN, IP-5-Sel and a local variety from Benin were screened for resistance to bacterial wilt. The study was conducted in a screen house and in the naturally contaminated open field during a consecutive rainy and dry season using a randomized complete block design with four and three replications, respectively. In the screen house, plants were inoculated by drenching a 40 mL of bacterial suspension containing 10<sup>8</sup> CFU/mL of <i>R. solanacearum</i> strain NCBI 5 GenBank N° MH397250 at the collar region. The bacterial wilt incidence (BWI) and the area under the disease progress curve (AUDPC) suggested differential reactions of amaranth varieties to the pathogen. BWI and AUDPC were low for UG-AMES13-2, moderate for Madiira 2, AM-NKGN and the local variety and very high for A2002, Bresil (B) -Sel, AC-NL, GARE ES13-7, Madiira 1 and IP-5-Sel. The World Vegetable Center’s UG-AMES13-2 can be considered as first choice, which is resistant to <i>R. solanacearum</i>, and should be scaled up for seed production towards supporting farmers.
format	article
author	Rachidatou Sikirou Marie Epiphane Dossoumou Judith Honfoga Victor Afari-Sefa Ramasamy Srinivasan Mathews Paret Wubetu Bihon
author_facet	Rachidatou Sikirou Marie Epiphane Dossoumou Judith Honfoga Victor Afari-Sefa Ramasamy Srinivasan Mathews Paret Wubetu Bihon
author_sort	Rachidatou Sikirou
title	Screening of <i>Amaranthus</i> sp. Varieties for Resistance to Bacterial Wilt Caused by <i>Ralstonia solanacearum</i>
title_short	Screening of <i>Amaranthus</i> sp. Varieties for Resistance to Bacterial Wilt Caused by <i>Ralstonia solanacearum</i>
title_full	Screening of <i>Amaranthus</i> sp. Varieties for Resistance to Bacterial Wilt Caused by <i>Ralstonia solanacearum</i>
title_fullStr	Screening of <i>Amaranthus</i> sp. Varieties for Resistance to Bacterial Wilt Caused by <i>Ralstonia solanacearum</i>
title_full_unstemmed	Screening of <i>Amaranthus</i> sp. Varieties for Resistance to Bacterial Wilt Caused by <i>Ralstonia solanacearum</i>
title_sort	screening of <i>amaranthus</i> sp. varieties for resistance to bacterial wilt caused by <i>ralstonia solanacearum</i>
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/837835051a72463b847abc642dd2201c
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Screening of <i>Amaranthus</i> sp. Varieties for Resistance to Bacterial Wilt Caused by <i>Ralstonia solanacearum</i>

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