Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro

Abstract. Sukmawati, Ala A, Patandjengi B, Gusli S. 2020. Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro. Biodiversitas 21: 5665-5673. Alginate-producing bacteria are important for improving the quality of dry land, as they can both dissolve phosphate and fix nitrog...

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Autores principales:	Sukmawati sukmawati, AMBO ALA, BAHARUDDIN PATANDJENGI, SIKSTUS GUSLI
Formato:	article
Lenguaje:	EN
Publicado:	MBI & UNS Solo 2020
Materias:	alginates, biofilm, rhizosphere, dry land, exopolysaccharide, soil nutrition Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/af5c53b1e2e8434fb1341bbe0a2d4f98
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spelling	oai:doaj.org-article:af5c53b1e2e8434fb1341bbe0a2d4f982021-11-22T00:52:01ZExploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro1412-033X2085-472210.13057/biodiv/d211224https://doaj.org/article/af5c53b1e2e8434fb1341bbe0a2d4f982020-11-01T00:00:00Zhttps://smujo.id/biodiv/article/view/6810https://doaj.org/toc/1412-033Xhttps://doaj.org/toc/2085-4722Abstract. Sukmawati, Ala A, Patandjengi B, Gusli S. 2020. Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro. Biodiversitas 21: 5665-5673. Alginate-producing bacteria are important for improving the quality of dry land, as they can both dissolve phosphate and fix nitrogen. Until now, the alginate-producing bacteria are largely isolated from seaweed. These bacteria were from the root ecosystem of cultivated plants. This study was conducted to explore bacteria that were capable of producing alginates, dissolving phosphates, and fixing nitrogen from the rhizosphere of corn (Zea mays), cocoa (Theobroma cacao), and lamtoro (Leucaena leucocephala). The characterization was carried out both morphologically and physiologically. A total of 17 isolates were successfully grown on alginate media, of which six isolates were from maize rhizosphere, five isolates from cocoa, and six isolates from the lamtoro rhizosphere. Bacterial isolates from the rhizosphere of maize and cocoa varied in terms of colony colors. In contrast, isolates from the lamtoro rhizosphere varied in colony forms. The KK1-40 isolates showed the highest cell biomass and dry weight which were 0.082 g mL-1 and 0.068 g respectively. The KK3-32 isolate showed the highest phosphate dissolution concentration of 10.85 mg L-1 with phosphate solubility efficiency value (PSE) and phosphate solubility index (PSI) which were 166.7 and a phosphate solubility index (PSI) 2.67 with a phosphate dissolution concentration of 10.85 mg L-1. LR1-25 isolates were able to fix the highest amount of nitrogen with a total N content of 0.36%. Isolates KK1-40 and LR1-25 were identified as Gram-negative bacteria and isolate KK-32 were identified as Gram-positive bacteria. The bacterial isolates KK1-40, KK3-32, and LR1-25 were superior bacteria that can be formulated to increase the productivity of dry land.Sukmawati sukmawatiAMBO ALABAHARUDDIN PATANDJENGISIKSTUS GUSLIMBI & UNS Soloarticlealginates, biofilm, rhizosphere, dry land, exopolysaccharide, soil nutritionBiology (General)QH301-705.5ENBiodiversitas, Vol 21, Iss 12 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	alginates, biofilm, rhizosphere, dry land, exopolysaccharide, soil nutrition Biology (General) QH301-705.5
spellingShingle	alginates, biofilm, rhizosphere, dry land, exopolysaccharide, soil nutrition Biology (General) QH301-705.5 Sukmawati sukmawati AMBO ALA BAHARUDDIN PATANDJENGI SIKSTUS GUSLI Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro
description	Abstract. Sukmawati, Ala A, Patandjengi B, Gusli S. 2020. Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro. Biodiversitas 21: 5665-5673. Alginate-producing bacteria are important for improving the quality of dry land, as they can both dissolve phosphate and fix nitrogen. Until now, the alginate-producing bacteria are largely isolated from seaweed. These bacteria were from the root ecosystem of cultivated plants. This study was conducted to explore bacteria that were capable of producing alginates, dissolving phosphates, and fixing nitrogen from the rhizosphere of corn (Zea mays), cocoa (Theobroma cacao), and lamtoro (Leucaena leucocephala). The characterization was carried out both morphologically and physiologically. A total of 17 isolates were successfully grown on alginate media, of which six isolates were from maize rhizosphere, five isolates from cocoa, and six isolates from the lamtoro rhizosphere. Bacterial isolates from the rhizosphere of maize and cocoa varied in terms of colony colors. In contrast, isolates from the lamtoro rhizosphere varied in colony forms. The KK1-40 isolates showed the highest cell biomass and dry weight which were 0.082 g mL-1 and 0.068 g respectively. The KK3-32 isolate showed the highest phosphate dissolution concentration of 10.85 mg L-1 with phosphate solubility efficiency value (PSE) and phosphate solubility index (PSI) which were 166.7 and a phosphate solubility index (PSI) 2.67 with a phosphate dissolution concentration of 10.85 mg L-1. LR1-25 isolates were able to fix the highest amount of nitrogen with a total N content of 0.36%. Isolates KK1-40 and LR1-25 were identified as Gram-negative bacteria and isolate KK-32 were identified as Gram-positive bacteria. The bacterial isolates KK1-40, KK3-32, and LR1-25 were superior bacteria that can be formulated to increase the productivity of dry land.
format	article
author	Sukmawati sukmawati AMBO ALA BAHARUDDIN PATANDJENGI SIKSTUS GUSLI
author_facet	Sukmawati sukmawati AMBO ALA BAHARUDDIN PATANDJENGI SIKSTUS GUSLI
author_sort	Sukmawati sukmawati
title	Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro
title_short	Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro
title_full	Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro
title_fullStr	Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro
title_full_unstemmed	Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro
title_sort	exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro
publisher	MBI & UNS Solo
publishDate	2020
url	https://doaj.org/article/af5c53b1e2e8434fb1341bbe0a2d4f98
work_keys_str_mv	AT sukmawatisukmawati exploringofpromisingbacteriafromtherhizosphereofmaizecocoaandlamtoro AT amboala exploringofpromisingbacteriafromtherhizosphereofmaizecocoaandlamtoro AT baharuddinpatandjengi exploringofpromisingbacteriafromtherhizosphereofmaizecocoaandlamtoro AT sikstusgusli exploringofpromisingbacteriafromtherhizosphereofmaizecocoaandlamtoro
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Exploring of promising bacteria from the rhizosphere of maize, cocoa and lamtoro

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