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All Journal EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi Makara Journal of Science
Khairani, Hafifatunil
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology

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Catatan Persebaran Russula cf. cyanoxantha di Hutan Kampus Institut Pertanian Bogor Putra, Ivan Permana; Haryadi, Silva Restiana; Nafsahan, Hury Khastina; Emillio, Guido Qais; Nuraeni, Siti Panesya; Anisyah, Fara Ayu; Khairani, Hafifatunil
EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi, dan Mikrobiologi Vol 8 No 1 (2023): Ekotonia: Jurnal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi
Publisher : Department of Biology, Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/ekotonia.v8i1.4016

Abstract

Russula cyanoxantha is one of a group of ectomycorrhizal-forming mushrooms. This species has a main distribution in the four seasons region. Until now, there is limited information on the distribution and taxonomic studies of this species of mushroom in Indonesia. Therefore, this study aimed to add information on the morphological characteristics, taxonomy, and distribution of R. cyanoxantha in Indonesia. This study was conducted in the campus forest of IPB University. Fresh fruiting bodies were observed in the field and in the laboratory. The parameters observed were macroscopic and microscopic characters of the collected samples. The mushroom found had cap colored in shades of white, gray, and purplish. The lamellae are white to cream colored and adnate to the cap, cylindrical stipe. Spores are round to oval with ornaments in the form of small spines on their cell walls. The results of this study are expected to contribute towards the addition of data on Russula mushrooms in Indonesia.
Antibacterial Activity of Endophytic Actinobacteria Isolated from Ziziphus mauritiana Against Multidrug-Resistant Strains Khairani, Hafifatunil; Priyanto, Jepri Agung; Prastya, Muhammad Eka; Retnowati, Dwi
Makara Journal of Science Vol. 29, No. 1
Publisher : UI Scholars Hub

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Abstract

Increasing resistance to existing antibiotics has led to a need for new alternative sources. Among the possibilities that need to be explored is the endophytic actinobacteria associated with Ziziphus mauritiana. The present study aimed to evaluate the antibacterial activity of endophytic actinobacteria isolated from Z. mauritiana against five multidrug-resistant bacterial strains. Thirty actinobacteria isolates were obtained from the roots, stem, and leaves of the plant using the serial dilution technique. Using a double-layer agar test, we found that colonies from five of the 30 isolates (16%) exhibited antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) and the M18 strain of Bacillus subtilis. Interestingly, the crude extracts derived from four selected isolates (BBK 1, DBK 2, DBK 3, and DBSB 1) showed inhibitory activity against MRSA, with inhibition zone diameters ranging from 8 (±0.8) to 11 (±2.9) mm. The highest inhibition zone was seen in DBK 2. This had a zone diameter of 11 (±2.9) mm, which is not signifi-cantly different from the zone diameter of 12 (±0) mm seen in tetracycline. The minimum inhibitory concentrations (MICs) were determined using the micro-broth dilution technique. This showed MICs ranging from 2,500–5,000 μg/mL in the four extracts. Based on 16S ribosomal ribonucleic acid (rRNA) sequences, the four selected isolates were found to belong to the Streptomyces spp., with similarity values exceeding 99%. These four isolates require further study as potential antibiotic sources, particularly against MRSA.
Catatan Persebaran Russula cf. cyanoxantha di Hutan Kampus Institut Pertanian Bogor Putra, Ivan Permana; Haryadi, Silva Restiana; Nafsahan, Hury Khastina; Emillio, Guido Qais; Nuraeni, Siti Panesya; Anisyah, Fara Ayu; Khairani, Hafifatunil
EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi, dan Mikrobiologi Vol 8 No 1 (2023): Ekotonia: Jurnal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi
Publisher : Department of Biology, Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/ekotonia.v8i1.4016

Abstract

Russula cyanoxantha is one of a group of ectomycorrhizal-forming mushrooms. This species has a main distribution in the four seasons region. Until now, there is limited information on the distribution and taxonomic studies of this species of mushroom in Indonesia. Therefore, this study aimed to add information on the morphological characteristics, taxonomy, and distribution of R. cyanoxantha in Indonesia. This study was conducted in the campus forest of IPB University. Fresh fruiting bodies were observed in the field and in the laboratory. The parameters observed were macroscopic and microscopic characters of the collected samples. The mushroom found had cap colored in shades of white, gray, and purplish. The lamellae are white to cream colored and adnate to the cap, cylindrical stipe. Spores are round to oval with ornaments in the form of small spines on their cell walls. The results of this study are expected to contribute towards the addition of data on Russula mushrooms in Indonesia.
Co-Authors Anisyah, Fara Ayu Dwi Retnowati Emillio, Guido Qais Haryadi, Silva Restiana Ivan Permana Putra Jepri Agung Priyanto, Jepri Agung Nafsahan, Hury Khastina Nuraeni, Siti Panesya Prastya, Muhammad Eka