{"id":499,"date":"2022-09-30T08:41:03","date_gmt":"2022-09-30T06:41:03","guid":{"rendered":"https:\/\/acepartnerz.kinsta.cloud\/ramr2d\/?post_type=boursier&p=499"},"modified":"2024-02-28T15:04:34","modified_gmt":"2024-02-28T14:04:34","slug":"alassane-diallo","status":"publish","type":"boursier","link":"https:\/\/ace-partner.org\/ramr2d\/boursier\/alassane-diallo\/","title":{"rendered":"Alassane DIALLO"},"content":{"rendered":"\n

Date de d\u00e9but : 01\/11\/2021
Date pr\u00e9visionnelle de soutenance de th\u00e8se : D\u00e9cembre 2024
Profil ORCID<\/strong><\/mark> : 0009-0003-5700-2277<\/mark><\/strong><\/p>\n\n\n\n

<\/p>\n\n\n\n

Intitul\u00e9<\/strong> :
Analyse d\u2019esp\u00e8ces v\u00e9g\u00e9tales natives de sites miniers en C\u00f4te d\u2019Ivoire et au Maroc et d\u00e9veloppement de proc\u00e9d\u00e9s de phytorestauration : perspectives d\u2019application m\u00e9thodologique en Afrique de l\u2019Ouest\u00a0<\/strong><\/strong><\/p>\n\n\n\n

R\u00e9sum\u00e9 du projet scientifique<\/strong>
Les activit\u00e9s mini\u00e8res en Afrique sont significatives, repr\u00e9sentant 10 % de la production mondiale et abritant 30 % des ressources mini\u00e8res. Cependant, ces activit\u00e9s ont des impacts n\u00e9gatifs majeurs sur les \u00e9cosyst\u00e8mes et la biodiversit\u00e9. La phytorem\u00e9diation \u00e9merge comme une alternative \u00e9cologique et abordable pour restaurer les sites miniers d\u00e9grad\u00e9s, principalement dans les pays en d\u00e9veloppement. Toutefois, en Afrique de l’Ouest, les \u00e9tudes sur ces probl\u00e9matiques sont rares \u00e0 l’\u00e9chelle territoriale. Cette th\u00e8se vise \u00e0 d\u00e9velopper une approche inclusive en analysant les esp\u00e8ces v\u00e9g\u00e9tales dominantes dans des sites miniers en C\u00f4te d’Ivoire et au Maroc. Apr\u00e8s la caract\u00e9risation de la contamination, des esp\u00e8ces tol\u00e9rantes et hyperaccumulatrices seront identifi\u00e9es et soumises \u00e0 des analyses physiologiques et biochimiques. Ces travaux permettront de proposer des solutions innovantes pour la phytorem\u00e9diation adapt\u00e9e aux \u00e9cosyst\u00e8mes miniers d\u00e9grad\u00e9s, favorisant ainsi le transfert de connaissances et de technologies \u00e0 l’\u00e9chelle r\u00e9gionale.<\/p>\n\n\n\n

Synth\u00e8se des r\u00e9sultats obtenus <\/strong>:<\/p>\n\n\n\n

Cette \u00e9tude a men\u00e9 une analyse compl\u00e8te des r\u00e9ponses morphologiques, physiologiques et biochimiques au plomb (Pb) et au zinc (Zn) dans trois populations m\u00e9tallicoles (MP) et une population non m\u00e9tallicole (NMP) de P. harmala. Les sols des sites marocains pr\u00e9sentaient une faible teneur en mati\u00e8re organique et des concentrations \u00e9lev\u00e9es de Pb et de Zn, ce qui indique une contamination importante. L’exposition au Pb et au Zn a significativement r\u00e9duit la biomasse a\u00e9rienne dans la NMP, la MP-Mibladen et la MP-Aouli par rapport \u00e0 la MP-Zaida. La biomasse racinaire a \u00e9galement diminu\u00e9 de mani\u00e8re significative dans le NMP par rapport au MP. La teneur en anthocyanes \u00e9tait notablement plus \u00e9lev\u00e9e dans MP-Zaida sous exposition au Pb. La teneur en proline et les activit\u00e9s des enzymes antioxydantes \u00e9taient significativement plus \u00e9lev\u00e9es dans le NMP que dans le MP sous exposition au Pb et au Zn. La NMP a accumul\u00e9 des niveaux plus \u00e9lev\u00e9s de Pb et de Zn \u00e0 la fois dans les racines et les parties a\u00e9riennes par rapport \u00e0 la MP, ce qui sugg\u00e8re une accumulation plus importante mais une tol\u00e9rance plus faible. MP-Zaida a montr\u00e9 une accumulation de m\u00e9taux plus faible et une tol\u00e9rance plus \u00e9lev\u00e9e, ce qui en fait un candidat prometteur pour la phytostabilisation.<\/p>\n\n\n\n

\n
\"\"
Pr\u00e9sentation \u00e0 la Conf\u00e9rence internationale Mining the Connections du 25 au 27 avril 2022
Au Quebc, Canada<\/figcaption><\/figure>\n\n\n\n
\"\"
Pr\u00e9sentation poster, Congr\u00e8s international \u201cPlant Biology Europe 2023\u201d du 3 au 6 juillet 2023 \u00e0 Marseille, France<\/figcaption><\/figure>\n\n\n\n
\"\"
Pr\u00e9sentation de mes travaux au CEMEM de la C\u00f4te d\u2019Ivoire \u00e0 l\u2019INP-HB \u00e0 l\u2019occasion de mon sejour \u00e0 Yamoussoukro<\/figcaption><\/figure>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"

Date de d\u00e9but : 01\/11\/2021Date pr\u00e9visionnelle de soutenance de th\u00e8se : D\u00e9cembre 2024Profil ORCID : 0009-0003-5700-2277 Intitul\u00e9 : Analyse d\u2019esp\u00e8ces v\u00e9g\u00e9tales natives de sites miniers en C\u00f4te d\u2019Ivoire et au Maroc et d\u00e9veloppement de proc\u00e9d\u00e9s de phytorestauration : perspectives d\u2019application m\u00e9thodologique en Afrique de l\u2019Ouest\u00a0 R\u00e9sum\u00e9 du projet scientifiqueLes activit\u00e9s mini\u00e8res en Afrique sont significatives, […]<\/p>\n","protected":false},"featured_media":501,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"class_list":["post-499","boursier","type-boursier","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nAlassane DIALLO - RAMR2D<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ace-partner.org\/ramr2d\/boursier\/alassane-diallo\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alassane DIALLO - 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