Dynamic population of N2-fixing cyanobacteria in an organic rice field

Abstract. Hendrayanti D, Rusmana I, Santosa DA, Hamim. 2019. Dynamic population of N2-fixing Cyanobacteria in an organic rice field. Biodiversitas 20: 2883-2890. The existence of free living N2-fixing cyanobacteria in rice fields has been acknowledged as an advantage for rice crops. At present, impl...

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Autores principales:	DIAN HENDRAYANTI, IMAM RUSMANA, DWI ANDREAS SANTOSA, HAMIM
Formato:	article
Lenguaje:	EN
Publicado:	MBI & UNS Solo 2019
Materias:	nitrogen fixation, rice phase, soil cyanobacteria, structure community Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/124a655f25a34029b58a42b87c23b1ad
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spelling	oai:doaj.org-article:124a655f25a34029b58a42b87c23b1ad2021-11-21T21:54:58ZDynamic population of N2-fixing cyanobacteria in an organic rice field1412-033X2085-472210.13057/biodiv/d201014https://doaj.org/article/124a655f25a34029b58a42b87c23b1ad2019-09-01T00:00:00Zhttps://smujo.id/biodiv/article/view/4319https://doaj.org/toc/1412-033Xhttps://doaj.org/toc/2085-4722Abstract. Hendrayanti D, Rusmana I, Santosa DA, Hamim. 2019. Dynamic population of N2-fixing Cyanobacteria in an organic rice field. Biodiversitas 20: 2883-2890. The existence of free living N2-fixing cyanobacteria in rice fields has been acknowledged as an advantage for rice crops. At present, implementation of organic rice-systems has been increasing as an alternative way for keeping rice fields healthy. Therefore, investigation of N2-fixing cyanobacteria as a part of the soil components is important. Dynamic populations of the filamentous N2-fixing cyanobacteria assemblage in organic rice field at Ciparay, South Bandung, was investigated during the crop’s growth cycle (January-March 2018). Soil samples were collected from four plots of 20 ha rice fields. At each plot, soil from three random stations with three replications was taken using a 3-cm-diameter plastic cylinder. Composite samples from each station were analyzed for colony enumeration (TPC method), relative abundance and frequency, and species identification. The results show that population reached peak on the 80 days after planting (194 x 106 cfu/g soil). Species number decreased following increased density of the rice canopy. Among the 23 morphospecies found along the rice growth, four species were always found during all stages of growth: Halotia wernerae CSO2, Roholtiella mojavensis CSO6, Hapalosiphon welwitschii CSO7, and Desmonostoc danxiaense CSO3. The community of N2-fixing cyanobacteria found in the organic rice field was different to those reported from non-organic rice field.DIAN HENDRAYANTIIMAM RUSMANADWI ANDREAS SANTOSAHAMIMMBI & UNS Soloarticlenitrogen fixation, rice phase, soil cyanobacteria, structure communityBiology (General)QH301-705.5ENBiodiversitas, Vol 20, Iss 10 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	nitrogen fixation, rice phase, soil cyanobacteria, structure community Biology (General) QH301-705.5
spellingShingle	nitrogen fixation, rice phase, soil cyanobacteria, structure community Biology (General) QH301-705.5 DIAN HENDRAYANTI IMAM RUSMANA DWI ANDREAS SANTOSA HAMIM Dynamic population of N2-fixing cyanobacteria in an organic rice field
description	Abstract. Hendrayanti D, Rusmana I, Santosa DA, Hamim. 2019. Dynamic population of N2-fixing Cyanobacteria in an organic rice field. Biodiversitas 20: 2883-2890. The existence of free living N2-fixing cyanobacteria in rice fields has been acknowledged as an advantage for rice crops. At present, implementation of organic rice-systems has been increasing as an alternative way for keeping rice fields healthy. Therefore, investigation of N2-fixing cyanobacteria as a part of the soil components is important. Dynamic populations of the filamentous N2-fixing cyanobacteria assemblage in organic rice field at Ciparay, South Bandung, was investigated during the crop’s growth cycle (January-March 2018). Soil samples were collected from four plots of 20 ha rice fields. At each plot, soil from three random stations with three replications was taken using a 3-cm-diameter plastic cylinder. Composite samples from each station were analyzed for colony enumeration (TPC method), relative abundance and frequency, and species identification. The results show that population reached peak on the 80 days after planting (194 x 106 cfu/g soil). Species number decreased following increased density of the rice canopy. Among the 23 morphospecies found along the rice growth, four species were always found during all stages of growth: Halotia wernerae CSO2, Roholtiella mojavensis CSO6, Hapalosiphon welwitschii CSO7, and Desmonostoc danxiaense CSO3. The community of N2-fixing cyanobacteria found in the organic rice field was different to those reported from non-organic rice field.
format	article
author	DIAN HENDRAYANTI IMAM RUSMANA DWI ANDREAS SANTOSA HAMIM
author_facet	DIAN HENDRAYANTI IMAM RUSMANA DWI ANDREAS SANTOSA HAMIM
author_sort	DIAN HENDRAYANTI
title	Dynamic population of N2-fixing cyanobacteria in an organic rice field
title_short	Dynamic population of N2-fixing cyanobacteria in an organic rice field
title_full	Dynamic population of N2-fixing cyanobacteria in an organic rice field
title_fullStr	Dynamic population of N2-fixing cyanobacteria in an organic rice field
title_full_unstemmed	Dynamic population of N2-fixing cyanobacteria in an organic rice field
title_sort	dynamic population of n2-fixing cyanobacteria in an organic rice field
publisher	MBI & UNS Solo
publishDate	2019
url	https://doaj.org/article/124a655f25a34029b58a42b87c23b1ad
work_keys_str_mv	AT dianhendrayanti dynamicpopulationofn2fixingcyanobacteriainanorganicricefield AT imamrusmana dynamicpopulationofn2fixingcyanobacteriainanorganicricefield AT dwiandreassantosa dynamicpopulationofn2fixingcyanobacteriainanorganicricefield AT hamim dynamicpopulationofn2fixingcyanobacteriainanorganicricefield
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Dynamic population of N2-fixing cyanobacteria in an organic rice field

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