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Reducing Pb accumulation in roots of sweet potato under low lead-contaminated soil by Azotobacter inoculation

Journal of Degraded and Mining Lands Management · Vol. 10 No. 2 (2023) · hlm. 4271–4280

DOI
10.15243/jdmlm.2023.102.4271
ISSN
2502-2458, 2339-076X
Terbit
2023-01-01
Penerbit
Brawijaya University
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc/4.0

Abstrak

Agricultural soil is possibly threatened by lead (Pb) contamination due to the intensive use of fertilizers. The rhizobacteria were recommended for the bioremediation of soils contaminated by low concentrations of Pb. The experiment was conducted to observe the Azotobacter's ability to proliferate in Pb-contaminated broth and to decrease the Pb availability in soil, Pb uptake by sweet potato roots, and sweet potato growth. The resistance test was performed by growing five Azotobacter isolates in N-free broth with various Pb levels. A pot experiment was conducted in a factorial randomized block design to test three levels of Pb in soil and two Azotobacter isolates. The results showed that Azotobacter Azv4 and A. choroococcum were resistant to 100 mg L-1 Pb in N-free broth. In the pot experiment, Azotobacter Azv4 Inoculation caused less Pb in soil and roots of sweet potatoes grown in Pb-contaminated soil than A. choroococcum. Either Azotobacter or Pb soil did not influence vine length. However, Azv4 was more prominent in increasing branch number, root volume and length; higher Pb in soil reduced branch number but did not affect root parameters. Azotobacter Azv4 increased more shoot and root dry weight compared to A. choroococcum, but both isolates did not change the shoot-to-root ratio (S/R). The Pb contamination only reduced root dry weight and reduced the S/R. This research considered utilizing rhizobacteria Azotobacter for reducing Pb levels in soil and roots; and increasing sweet potato biomass.

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  • Padjadjaran University
  • National Research and Innovation Agency
  • Universitas Majalengka
  • Universitas Islam Nusantara
  • Universitas Pattimura
  • Universitas Islam Negeri Ar-Raniry
  • Kementerian Energi dan Sumber Daya Mineral
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Rekan penulisOrganisasiArtikel bersama
Mieke Rochimi SetiawatiPadjadjaran University16
Emma Trinurani SofyanPadjadjaran University9
Nadia Nuraniya KamaluddinPadjadjaran University7
Betty Natalie FitriatinPadjadjaran University7
Oviyanti MulyaniPadjadjaran University5
Benny JoyPadjadjaran University5
Rhazista NoviardiNational Research and Innovation Agency5
Diyan HerdiyantoroPadjadjaran University4
Triyani DewiNational Research and Innovation Agency4
Anne NurbaityPadjadjaran University4
Debby UstariUniversitas Islam Nusantara3
Mega Kartika HermawanPadjadjaran University3
Syafrizal SyafrizalUniversitas Islam Negeri Ar-Raniry3
Zulkifliani ZulkiflianiAfiliasi tidak diketahui3
Nia KurniatiPadjadjaran University2
Arif Affan WicaksonoPadjadjaran University2
Mahfud ArifinPadjadjaran University2
Abraham SuriadikusumahPadjadjaran University2
Safri IshmayanaPadjadjaran University2
Danar DonoPadjadjaran University2
Neneng Sri WidayaniPadjadjaran University2
Agustinus Marthin KalayUniversitas Pattimura2
Muhamad Rahman DjuansahNational Research and Innovation Agency2
Tualar SimarmataPadjadjaran University2
Sondi KuswaryanPadjadjaran University1
Rustam RustamKementerian Energi dan Sumber Daya Mineral1
Dadang Epi SukarsaPadjadjaran University1
Acep Atma WijayaUniversitas Majalengka1
Hana D RahayuUniversitas Majalengka1
Adi Oksifa Rahma HartiAfiliasi tidak diketahui1
Meddy RachmadiPadjadjaran University1
Tarra Martiana DewiPadjadjaran University1
Reviana AuliaPadjadjaran University1
Haris MaulanaPadjadjaran University1

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Sumber metadata: OAI-PMH (metadata jurnal) http://jdmlm.ub.ac.id/index.php/jdmlm/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">Reducing Pb accumulation in roots of sweet potato under low lead-contaminated soil by Azotobacter inoculation</dc:title>
	<dc:creator>Hindersah, Reginawanti</dc:creator>
	<dc:creator>Subarja, Vera Oktavia</dc:creator>
	<dc:creator>Suryatmana, Pujawati</dc:creator>
	<dc:creator>Sudirja, Rija</dc:creator>
	<dc:creator>Karuniawan, Agung</dc:creator>
	<dc:creator>Hidayat, Yusup</dc:creator>
	<dc:subject xml:lang="en-US">Azotobacter</dc:subject>
	<dc:subject xml:lang="en-US">biomass</dc:subject>
	<dc:subject xml:lang="en-US">Pb resistance</dc:subject>
	<dc:subject xml:lang="en-US">Pb uptake</dc:subject>
	<dc:subject xml:lang="en-US">soil Pb</dc:subject>
	<dc:description xml:lang="en-US">Agricultural soil is possibly threatened by lead (Pb) contamination due to the intensive use of fertilizers. The rhizobacteria were recommended for the bioremediation of soils contaminated by low concentrations of Pb. The experiment was conducted to observe the Azotobacter's ability to proliferate in Pb-contaminated broth and to decrease the Pb availability in soil, Pb uptake by sweet potato roots, and sweet potato growth. The resistance test was performed by growing five Azotobacter isolates in N-free broth with various Pb levels. A pot experiment was conducted in a factorial randomized block design to test three levels of Pb in soil and two Azotobacter isolates. The results showed that Azotobacter Azv4 and A. choroococcum were resistant to 100 mg L-1 Pb in N-free broth. In the pot experiment, Azotobacter Azv4 Inoculation caused less Pb in soil and roots of sweet potatoes grown in Pb-contaminated soil than A. choroococcum. Either Azotobacter or Pb soil did not influence vine length. However, Azv4 was more prominent in increasing branch number, root volume and length; higher Pb in soil reduced branch number but did not affect root parameters. Azotobacter Azv4 increased more shoot and root dry weight compared to A. choroococcum, but both isolates did not change the shoot-to-root ratio (S/R). The Pb contamination only reduced root dry weight and reduced the S/R. This research considered utilizing rhizobacteria Azotobacter for reducing Pb levels in soil and roots; and increasing sweet potato biomass.</dc:description>
	<dc:publisher xml:lang="en-US">Brawijaya University</dc:publisher>
	<dc:date>2023-01-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/1403</dc:identifier>
	<dc:identifier>10.15243/jdmlm.2023.102.4271</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Degraded and Mining Lands Management; Vol. 10 No. 2 (2023); 4271-4280</dc:source>
	<dc:source>2502-2458</dc:source>
	<dc:source>2339-076X</dc:source>
	<dc:source>10.15243/jdmlm.2023.102</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/1403/pdf</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 Journal of Degraded and Mining Lands Management</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-nc/4.0</dc:rights>
</oai_dc:dc>