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All Journal Jurnal Ilmu Lingkungan jurnal Ilmu Pertanian (Agricultural Science) Acta Solum
Anjar Cahyaningtyas
Department of Soil Science, Faculty of Agriculture, Universitas Pembangunan Nasional “Veteran” Yogyakarta, Yogyakarta, Indonesia
Agriculture, Biological Sciences & Forestry Environmental Science

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Keragaman Jamur Mikoriza Arbuskular pada Rizosfer Tiga Varietas Tanaman Tebu: Diversity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Three Sugarcane Varieties Zulfa Fatmawati; Jaka Widada; Donny Widianto; Anjar Cahyaningtyas; Devanda Ayu Lidya Permata Putri
Acta Solum Vol. 3 No. 2 (2025): Maret 2025
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v3i2.3293

Abstract

Arbuscular mycorrhizal fungi (AMF) form associations with more than 80% of the terrestrial plants. These associations enhance nutrient sequestration and plant resistance to environmental stress. The diversity of AMF is highly influenced by the host plants. The types of AMF in the Bululawang, Kidang Kencana, and Pasuruan Jengkol 922 sugarcane varieties grown in a similar location were identified through morphological and molecular methods. AMF spores were isolated by the wet sieving method. The morphological features of the AMF spore mounted in PVLG and Melzer’s reagent were observed under a microscope. The DNA of the fungi was extracted, and the ribosomal RNA genes were amplified by nested PCR with the NS1-NS4 primer pairs, followed by the AML1-AML2 primer pairs. A moderate diversity of AMF was observed, with a total of 269 spores found in the Kidang Kencana variety, 191 spores in the Bululawang variety, and 142 spores in the Pasuruan Jengkol 922 variety. Four AMF species have been identified morphologically and molecularly, namely Glomus flavisporum, Acaulospora koskei, Gigaspora Margarita, and Scutellospora savannicola. These findings indicate that the number and type of AMF associated with sugarcane roots are influenced by plant varieties, in which the Glomus sp. is the dominant species in the three sugarcane varieties studied.
Detection of Arbuscular Mycorrhizal Fungi in the Root of Allium fistulosum Grown in the Fumigated Field Anjar Cahyaningtyas; Devanda Ayu Lidya Permata Putri; Ummi Rosyidah; Zulfa Fatmawati
Acta Solum Vol. 3 No. 3 (2025): Juli 2025
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v3i3.3355

Abstract

Soil fumigation is important pre-plantation practices to maximize land productivity. Not only effectively eliminate soil pests and pathogens, but this practice also affecting the beneficial soil microbial community including arbuscular mycorrhizal (AM) fungi. The AM fungal community in the roots of Allium fistulosum were studied. The roots have been collected from fumigated and non-fumigated field. The DNA has been extracted, then the fungal LSU ribosomal RNA gene has been amplified and sequenced. Two and three AM fungal OTUs have been detected from fumigated and non-fumigated field, respectively. Decomposer and pathogenic fungi were detected coexist with the AM fungi, suggesting the resilience of these fungi upon fumigation treatment.
Characterization of Soil-like Materials from Non-active Zone of Piyungan Waste Disposal Facility, Indonesia: Implications for Compost and Organic Fertilizer Use Usamah Khalil Abdur Rozak; Lelanti Peniwiratri; Anjar Cahyaningtyas
Jurnal Ilmu Lingkungan Vol 24, No 4 (2026): July 2026
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.24.4.1042-1048

Abstract

Municipal solid waste (MSW) disposed of in landfills contains a significant proportion of organic fraction that decomposes into soil-like materials that can be potentially recovered and reused. Landfill mining is an emerging strategy to recover these materials from older waste deposits. Integration of these materials into circular waste practices can therefore reduce landfill volume and recover valuable resources. However, given the heterogeneous nature of waste deposited in landfills over time, concerns arise about the quality and safety of the soil-like material, particularly when intended for use as compost or organic fertilizer. In this study, soil-like material samples (n=4) were collected from two landfill age groups, i.e., younger piles (16–20 years) and older piles (21–25 years). Samples were characterized for chemical properties, physical characteristics, and heavy metal content. The results were then compared with the Indonesian National Standards (SNI) 19-7030-2004 for organic domestic compost and SNI 7763:2024 for solid organic fertilizer. Findings revealed that total NPK content in older material (0.80 ± 0.35%) met the NPK threshold for organic domestic compost (≥ 0.70%), whereas younger material (0.40 ± 0.17%) failed. Both age groups failed the NPK requirement for solid organic fertilizer (≥ 2). Furthermore, cadmium (Cd) concentrations in both younger (39.81 ± 11.32 mg/kg) and older (33.47 ± 12.60 mg/kg) materials severely exceeded regulatory thresholds (≤ 3 mg/kg for compost; ≤ 2 mg/kg for fertilizer). Lead (Pb) concentrations (11.32 ± 7.92 mg/kg and 21.43 ± 11.38 mg/kg) complied with statutory standards across both groups. These findings indicate that while mined soil like materials possess resource potential, post-recovery treatments, including inert screening, nutrient enrichment, and heavy metal remediation, are essential prior to land application.
Exploration of Pesticide-Tolerant Indigenous Bacteria from Shallot Monoculture Farm Zulfa Fatmawati; Anjar Cahyaningtyas; Maulana Khafid Arrohman; Yanisworo Wijaya Ratih; Dias Setiyani; Rio Triatmojo Nugroho; Bima Wirayuda Nugraha
Jurnal Ilmu Pertanian Vol 11, No 2 (2026): August
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.113215

Abstract

Intensive and prolonged use of methomyl and abamectin in Indonesian horticultural systems has raised concerns about soil contamination and the decline of beneficial microbial communities. This study aimed to isolate and characterize indigenous soil bacteria capable of tolerating and potentially degrading these pesticides. Soil samples were collected from a shallot field with a long history of pesticide application in Kendal, Central Java, and cultured on minimal salt medium (MSM) supplemented with methomyl, abamectin, or their combination at concentrations of 0, 25, 50, 75, and 100 ppm. A total of 88 bacterial colonies were observed and categorized into four morphotypes, namely isolates W, C, Y, and R. Growth assays revealed that isolates W and C demonstrated the highest tolerance, indicated by the highest optical density (OD) and maintaining viability across all pesticide treatments, although reduced growth was observed under combined pesticide exposure. Several isolates exhibited increased optical density after 72 hours, suggesting potential physiological adaptation to xenobiotic stress conditions. Isolates with the highest growth performance under pesticide application were identified through 16S rRNA sequencing as Acinetobacter baumannii, Bacillus subtilis, and Brevibacillus nitrificans. Pathogenicity tests were performed on tobacco leaves to ensure their safety for agricultural applications. No necrosis, chlorosis, or leaf spotting was observed up to seven days after inoculation, indicating that all isolates were non-pathogenic under the conditions tested. Overall, the indigenous isolates, particularly isolates W and C, show high tolerance to methomyl and abamectin applications and thus have the potential as candidates for microbial-based bioremediation of methomyl- and abamectin-contaminated soils. Further investigation into their degradation pathways, enzymatic mechanisms, and field-scale performance is required to support their application in sustainable agricultural management.
Co-Authors Bima Wirayuda Nugraha Devanda Ayu Lidya Permata Putri Dias Setiyani Donny Widianto Jaka Widada Lelanti Peniwiratri Maulana Khafid Arrohman Rio Triatmojo Nugroho Ummi Rosyidah Usamah Khalil Abdur Rozak Yanisworo Wijaya Ratih Zulfa Fatmawati Zulfa Fatmawati Zulfa Fatmawati