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All Journal Journal of Natural Sciences and Mathematics Research Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi
Robbi Mauizzatul Hikmah
Universitas Islam Negeri Walisongo Semarang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Education Materials Science & Nanotechnology Physics

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Analyzing causes of the death of Ferns (Pteridophyta) in the Padang Savana, Taman Nasional Bromo Tengger Semeru (TN-BTS) Eko Purnomo; Nilana Izzati; Robbi Mauizzatul Hikmah; Diyana Sabila Rusydina; Lathifah Nurul Fauzi; Ibnu Sina Rafiq Romawan
Journal of Natural Sciences and Mathematics Research Vol 7, No 2 (2021): December
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jnsmr.2021.7.2.11074

Abstract

The Padang Savana area of Bromo Tengger Semeru National Park (TN-BTS) is located at an altitude of 750-3676 m above sea level so that it has a high biodiversity with a distinctive vegetation character. Ferns (Pteridophyta) is one of the vegetation that dominates about 35% of the Bromo Conservation Area. The ferns in the location show a dry and dead physical condition. This study aims to analyze the causes of death of ferns (Pteridophyta) in the Padang Savana Bromo Tengger Semeru National Park. The research method used is a qualitative descriptive method and the data obtained from direct observation to the savanna of Bromo Tengger Semeru National Park (TN-BTS) and face-to-face interviews without guidance to resource persons. The sampling location is at an altitude of 2026 masl, temperature 24.4°C, air pressure 792.5 HPA, with the object of research in the form of a sprig of ferns (Pteridophyta) complete with dead leaf roots and is considered to represent all ferns (Pteridophyta) in the savanna. The data obtained from the resource persons were then analyzed using literature studies. The results showed that the death of ferns (Pteridophyta) was caused by several factors such as the presence of allelopathic substances produced from Imperata cylindrica, soil texture, and eruption disasters. Thus, the surrounding environment is very influential on the life of ferns (Pteridophyta) The results showed that the death of ferns (Pteridophyta) was caused by several factors such as the presence of allelopathic substances produced from Imperata cylindrica, soil texture, and eruption disasters. Thus, the surrounding environment is very influential on the life of ferns (Pteridophyta) The results showed that the death of ferns (Pteridophyta) was caused by several factors such as the presence of allelopathic substances produced from Imperata cylindrica, soil texture, and eruption disasters. Thus, the surrounding environment is very influential on the life of ferns (Pteridophyta). ©2021 JNSMR UIN Walisongo. All rights reserved.
Potential of biological agents (Pseudomonas sp.) in plastic waste biodegradation process Aisyah Chofifawati; Robbi Mauizzatul Hikmah; Nilana Izzati; Lathifah Nurul Fauzi; Tara Puri Ducha Rahmani; Arnia Sari Mukaromah
Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi Vol 5, No 2 (2022): December
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v5i2.1192

Abstract

Pseudomonas sp. can degrade plastics because it has an inducible operon system that produces certain enzymes (esterase, serine, hydrolase, and lipase) in the process of carbon source metabolism. The purpose of this study was to determine the potential of Pseudomonas sp. as a plastic biodegradation agent. This research method is a systematic literature review which is carried out by collecting, understanding, analyzing and concluding as many as 30 national and international journal articles published from 2008 to 2022 from several search engines such as Google Scholar, Ncbi, Sinta, and Plos one with the keywords degrading microorganisms plastic. The steps of this research were made samples to be used, tested samples with bacterial isolation, filtered the bacteria, bacterial bacteria and biodegradation within a specified time period by looking at the % loss of plastic before treatment. The results of the literature review analysis showed that Pseudomonas sp. able to degrade plastic around 2-19% by utilizing plastic as a carbon source which will convert addition and condensation polymers into simple molecules such as monomers, dimers and oligomers during the inventory period within 1-3 months. Thus, the microorganisms in the form of Pseudomonas sp. can decompose plastic waste naturally and faster than other methods and does not cause adverse effects.
Co-Authors Aisyah Chofifawati Arnia Sari Mukaromah Diyana Sabila Rusydina Eko Purnomo Ibnu Sina Rafiq Romawan Lathifah Nurul Fauzi Nilana Izzati Tara Puri Ducha Rahmani