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Identification of Potential Pathogen Bacteria Causing Tuber Rot in Porang (Amorphophallus muelleri Blume)

Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences · Vol. 10 No. 2 (2020) · pp. 99–104

DOI
10.11594/jtls.10.02.02
ISSN
2527-4376, 2087-5517
Published
2020-04-29
Publisher
Journal of Tropical Life Science
Language
eng

Abstract

Tuber rot has been reported as one of the limiting factors to porang (Amorphophallus muelleri Blume) tuber production. Bacterial infection is one of the main causes of tuber rot during storage. In this study, a total of seven bacterial isolates obtained from porang tubers were tested for their potency to cause rotting on porang tubers. Porang tubers were immersed in bacterial suspension and incubated for 14 days. The physical properties of the tubers such as texture and color, and the chemical properties such as reducing sugar and ethanol content were determined at the end of incubation period. All infected tubers were soft, slimy and darker. Two isolates, T4 and T9A, had the highest potency to cause tuber rot indicated by the significantly higher reducing sugar content (14.38 and 15.32 mg/ml) and higher ethanol content (32.17 and 35.05%) compared to control tubers which were not infected with bacteria. Both isolates were identified as Bacillus altitudinis and Pseudomonas stutzeri, respectively, based on 16S rDNA sequence analysis.

Keywords

Collaboration network of the authors

40 authors · 94 co-authorship links · 4 across different organisations · showing the 40 most connected

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • University of Brawijaya
  • STMIK AMIKOM Surakarta
  • Universitas Amikom Yogyakarta
  • Indonesian Institute of Sciences
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Amin Setyo LeksonoUniversity of Brawijaya2
Herawati HerawatiUniversity of Brawijaya2
Yoga Dwi JatmikoAffiliation unknown2
Estri Laras ArumingtyasAffiliation unknown2
Suharjono SuharjonoAffiliation unknown2
Moch. Hari PurwidiantoroSTMIK AMIKOM Surakarta1
Tinuk AgustinSTMIK AMIKOM Surakarta1
Riska Putri QurotaayuinaUniversity of Brawijaya1
Amin Setyo LeksonoAffiliation unknown1
Wildania Putri AgustinaAffiliation unknown1
Marsa SalsabilaAffiliation unknown1
Nabila Fitri RosyidaAffiliation unknown1
Riska Putri QurotaayuninaAffiliation unknown1
Nia KurniawanAffiliation unknown1
Anisa ZairinaAffiliation unknown1
Hakan BozdoğanAffiliation unknown1
Evi OctavianyAffiliation unknown1
Elsa Mega SuryaniAffiliation unknown1
Hikmah MaulidiyahAffiliation unknown1
Salam A. IbrahimAffiliation unknown1
NurjanahAffiliation unknown1
Binawati GintingAffiliation unknown1
Ilham MaulanaAffiliation unknown1
Tasya UlfikaAffiliation unknown1
Dian SiswantoUniversity of Brawijaya1
Idham Halil ZakariaAffiliation unknown1
Siti Mariyah UlfaAffiliation unknown1
Anna SafitriAffiliation unknown1
Nishia Waya MerayAffiliation unknown1
Dewi Ayu LestariIndonesian Institute of Sciences1
H. HendrianAffiliation unknown1
Sri WidyartiAffiliation unknown1
Nunung HarijatiAffiliation unknown1
Syukria I ZamAffiliation unknown1
Jehan Ramdani HaryatiAffiliation unknown1
Didik WahyudiAffiliation unknown1
Isna Arofatun NikmahAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) http://jtrolis.ub.ac.id/index.php/jtrolis/oai, first harvested 9 Nov 2026, last seen 9 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">Identification of Potential Pathogen Bacteria Causing Tuber Rot in Porang (Amorphophallus muelleri Blume)</dc:title>
	<dc:creator xml:lang="en">Aini, Afifah Nur</dc:creator>
	<dc:creator xml:lang="en">Azrianingsih, Rodiyati</dc:creator>
	<dc:creator xml:lang="en">Mustafa, Irfan</dc:creator>
	<dc:subject xml:lang="en">Amorphophallus muelleri</dc:subject>
	<dc:subject xml:lang="en">pathogen bacteria</dc:subject>
	<dc:subject xml:lang="en">tuber rot</dc:subject>
	<dc:subject xml:lang="en">porang</dc:subject>
	<dc:description xml:lang="en">Tuber rot has been reported as one of the limiting factors to porang (Amorphophallus muelleri Blume) tuber production. Bacterial infection is one of the main causes of tuber rot during storage. In this study, a total of seven bacterial isolates obtained from porang tubers were tested for their potency to cause rotting on porang tubers. Porang tubers were immersed in bacterial suspension and incubated for 14 days. The physical properties of the tubers such as texture and color, and the chemical properties such as reducing sugar and ethanol content were determined at the end of incubation period. All infected tubers were soft, slimy and darker. Two isolates, T4 and T9A, had the highest potency to cause tuber rot indicated by the significantly higher reducing sugar content (14.38 and 15.32 mg/ml) and higher ethanol content (32.17 and 35.05%) compared to control tubers which were not infected with bacteria. Both isolates were identified as Bacillus altitudinis and Pseudomonas stutzeri, respectively, based on 16S rDNA sequence analysis.</dc:description>
	<dc:publisher xml:lang="en">Journal of Tropical Life Science</dc:publisher>
	<dc:date>2020-04-29</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://jtrolis.ub.ac.id/index.php/jtrolis/article/view/1238</dc:identifier>
	<dc:identifier>10.11594/jtls.10.02.02</dc:identifier>
	<dc:source xml:lang="en">Journal of Tropical Life Science; Vol. 10 No. 2 (2020); 99 - 104</dc:source>
	<dc:source>2527-4376</dc:source>
	<dc:source>2087-5517</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://jtrolis.ub.ac.id/index.php/jtrolis/article/view/1238/pdf</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2020 Journal of Tropical Life Science</dc:rights>
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