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All Journal Biospecies Bioeducation Journal Pendidikan Biologi Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis JURNAL PENDIDIKAN TAMBUSAI Eksakta : Berkala Ilmiah Bidang MIPA Atrium Pendidikan Biologi Serambi Biologi Pelita Eksakta Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Sainstek : Jurnal Sains dan Teknologi Jurnal Biogenerasi Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat SIMBIOSA MASALIQ: Jurnal Pendidikan dan Sains Jurnal Serambi Biologi
Dezi Handayani
Universitas Negeri Padang
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Veterinary Other

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Potential Of Pseudomonas fluorescens As Plant Growth Promoting Bacteria Claudia Ayesha; Linda Advinda; Violita Violita; Dezi Handayani
Jurnal Serambi Biologi Vol. 8 No. 1 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

Plant growth promoting bacteria or Plant Growth Promoting Rhizobacteria (PGPR) are soil bacteria found in the root area which function to increase plant growth. Most of them came from the Gram-negative group with the highest number of strains from the genus Pseudomonas. Pseudomonas fluorescens is able to produce IAA, siderophores and phosphate solubilizing compounds, fixes nitrogen and exhibits plant growth promoting activity. Therefore, this bacterium is very potential as a PGPR. This study aims to collect and analyze articles related to the potential of Pseudomonas fluorescens as a plant growth promoting bacterium. This type of research is research that uses internet sources from the Google Scholar database. The stages consist of identification, screening, eligibility and acceptance. Based on the articles collected, it was found that Pseudomoas fluorescens is one of the Plant Growth Promoting Rhizobacteria (PGPR). PGPR affects plant health and soil fertility by offering an excellent combination of properties that are useful in promoting plant growth, namely producing IAA and siderophores, dissolving phosphate, fixing nitrogen and exhibiting plant growth promoting activity.
Potential of Pseudomonad Fluoresen as Control of Plant Diseases Silviana Okwisan; Linda Advinda; Dezi Handayani; Dwi Hilda Putri; Irma Leilani Eka Putri
Jurnal Serambi Biologi Vol. 8 No. 1 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

The use of fertilizers and pesticides provides various side effects such as environmental pollution and higher production costs due to the high prices of fertilizers and pesticides. Therefore it is necessary to look for other alternatives to control plant diseases. One of the safe and environmentally friendly control measures is to use biological control agents. Fluorescent pseudomonads are antagonistic bacteria that are widely used as biological agents for fungi, pathogenic bacteria and viruses. Biological control using fluorescent pseudomonads has been studied for its effectiveness in suppressing plant diseases. This study aims to collect and analyze articles related to the potential of fluorescent pseudomonads in controlling plant diseases. This type of research is research that uses the literature review method and collects literature using internet sources from the Google Scholar database. The stages consist of identification, screening, eligibility and acceptance. Based on the articles collected, it was found that fluorescent pseudomonads are potential and effective in controlling various plant diseases.
Fluorescent Pseudomonad Association in Plant Rhizosphere Intan Febriani; Linda Advinda; Dezi Handayani; Siska Alicia Farma; Dwi Hilda Putri
Jurnal Serambi Biologi Vol. 8 No. 2 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

Plant growth promoting rhizobacteria or known as Plant Growth Promoting Rhizobacteria (PGPR) are bacteria found on the surface of plant roots and are beneficial microorganisms. The rhizosphere is an ideal area for the growth and development of soil microorganisms. This situation is supported by its function, namely as a provider of nutrients and also as a place for the growth and development of microorganisms. One of the bacteria found in the rhizosphere of plants is the fluorescent pseudomonad. Fluorescent pseudomonads are biological agents that can be isolated from the surface area of plant roots. This study aims to collect and analyze articles related to the association of fluorescent pseudomonads from plant rhizosphere. This type of research is research that uses the literature review method and literature collection using internet sources from the Google Scholar database. This stage consists of identification, screening, eligibility and acceptance. Based on the articles collected, it was found that the use of fluorescent pseudomonads as a biological control agent has been widely carried out because of their ability to produce antimicrobial compounds.
Saponins Compounds as Antifungal Against Plant Pathogens Resti Yulia; Moralita Chatri; Linda Advinda; Dezi Handayani
Jurnal Serambi Biologi Vol. 8 No. 2 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Saponin merupakan salah satu senyawa metabolit sekunder yang terkandung dalam tanaman. Saponin tersebar luas pada seluruh organ tanaman diantaranya yaitu pada buah, biji, daun, umbi, batang, dan akar. Kandungan saponin lebih banyak ditemukan pada tanaman yang masih muda dari pada tanaman berumur tua. Metode yang digunakan yaitu studi literature. Ulasan ini bertujuan untuk memberikan gambaran mengenai efektivitas saponin sebagai antifungi. Saponin dapat diperoleh dari tanaman dengan metode ekstraksi. Metode ekstraksi merupakan sebuah proses pemisahaan berdasarkan perbedaan kelarutan bahan. Mekanisme kerja saponin sebagai antifungi yaitu dengan cara menurunkan membrane sterol sehingga mengakibatkan permeabilitas meningkat, lalu sel bengkak dan pecah sehingga mengakibatkan sel menjadi mati. Matinya sel tersebut mengakibatkan pertumbuhan dan perkembangan jamur menjadi terhambat. Dari beberapa penelitian telah terbukti bahwa saponin yang terdapat dalam tanaman terbukti memiliki aktivitas antifungi sehingga dapat dijadikan sebagai fungisida nabati.Kata Kunci: antifungi, tanaman, saponin, sel, jamur
Endophytic Fungi from Simpei Fern Rhizomes and Its Phosphate Solubilization Activity Windi Nopitasari; Dezi Handayani; Linda Advinda; Irdawati Irdawati
Jurnal Serambi Biologi Vol. 8 No. 2 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

Phosphate is very abundant in the soil, but only a small amount was dissolved. Some fungi have the ability to dissolve phosphates. This fungi is expected to overcome the excessive use of phosphate fertilizers. Those fungi ussualy found in soil or rhizorfere and sometimes they are endophytic. Rhizome of the simpei fern has endophytic fungi and its phosphate solubilizing activity was not known yet. This study aims to isolate endophytic fungi from rhizome of the simpei fern and to determine its phosphate solubilizing activity. Samples of simpei fern rhizome were taken from Nagari Aka Barayun, Harau District, Lima Puluh Kota District, West Sumatra. Surface sterilization using 0.5% NaOCL. The isolation medium for endophytic fungi used PDA medium and the phosphate solvent activity test used Pikovskaya medium. Six isolates of endophytic fungi were successfully isolated from the rhizome of the simpei fern and only three isolates were able to dissolve phosphate. The isolates are isolates R4, R5, and R6. Phosphate solubilizing activity of isolate R5 was higher than other isolates, although all isolates had a low phosphate solubility index.
Isolation of Phosphate-Solubilizing Fungi from Forest Soils of the Harau Valley Roza Yolanda; Dezi Handayani; Azwir Anhar; Irdawati Irdawati
Jurnal Serambi Biologi Vol. 8 No. 2 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

The decline in the quality of agricultural products due to nutrient deficiencies such as phosphate is a major problem for agriculture in Indonesia. Technological advances have produced a way to overcome phosphate availability, namely by using phosphate-solubilizing fungi. Organic acids produced by phosphate-solubilizing fungi help reduce phosphate binding in the soil. This study aims to determine the activity of phosphate-solubilizing fungi isolated from Harau Valley Forest soil. Soil sampling was done by the purposive sampling method. The sampling area was along the Aka Barayun Forest in the Harau Valley. Isolation of fungi was carried out using the multilevel dilution method and poured on PDA medium. The fungus activity test was carried out using Pikovskaya media. Based on the results of the study, 6 isolates were obtained, 3 of which had phosphate solubilizing activity, as indicated by the formation of a clear zone around the fungal colonies. Fungal isolates were measured for colony zone diameter, clear zone diameter, and phosphate solubility index (IKF). The isolate with the highest activity was isolate T1, with an IKF of 1.0. The ability to dissolve phosphate of the fungal isolates obtained was categorized as low.
Fungi Isolated from litter’s forest of Aka Barayun, Lembah Harau and It’s Phosphate Solubilizing Activity Nurul Rahmi; Dezi Handayani; Dwi Hilda Putri; Violita Violita
Jurnal Serambi Biologi Vol. 8 No. 2 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

One of the essential nutrients for plant growth is phosphate, but just 0.1-0.5% is available for plants to use. This problem can be solved by using chemical fertilizers, but for long run could damages environment. An alternative way for chemical fertilizers is using phosphate solubilizing fungi. Phosphate-solubilizing fungi can be isolated from soil or litter. This study aims to isolated fungi from litter’s forest of Aka Barayun, Lembah Harau, West Sumatra and determine it’s phosphate solubilizing potency. Medium for isolation was Potato Dextrose Agar (PDA) and medium for phosphate solubilizing activity test was solid Pikovskaya medium with source of bound phosphate Ca3(PO4)2. Thirteen fungi were isolated successfully from litter’s forest of Aka Barayun, Lembah Harau, West Sumatra, which are coded SR1-SR13. Based on macroscopic and microscopic morphology, it is known that two isolates belong to the genus Penicillium, two isolates belong to Trichoderma, one isolate of Verticillium, one isolate of Fusarium, two isolates of yeast and two isolates are not yet known. Results of the phosphate solubilizing test showed that only seven isolates were able to solubilize phosphate, they are isolates SR2, SR5, SR6, SR7, SR11, SR 12 and SR 13. Phosphate solubilization index is low and ranges from 0.1 to 0.4.
Isolation of Endophytic Fungi from Trichoma of the Simpei Fern (Cibotium barometz (L.) J. Sm) and Phosphate Solubilizing Activity Test Nia Ramadhanti; Dezi Handayani; Azwir Anhar; Irdawati
Jurnal Serambi Biologi Vol. 8 No. 2 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

The problem that is often faced by farmers in West Sumatra is the decreasing level of soil fertility which has an impact on crop production due to a lack of phosphate uptake by plants. The problem of phosphate availability can be overcome by utilizing phosphate solubilizing fungi (CPF) because they can be used as biofertilizers. CPF is usually isolated from the soil or rhizosphere, but this fungus is not necessarily compatible with the host plant, so the isolation of endophytic fungi, especially indigenous fungi, is better because it can provide phosphate. CPF can be isolated from plant tissues such as trichomes. The aim of this study was to isolate endophytic fungi from chimpanzee fern trichomes and test their phosphate solubilizing activity. Samples were obtained from Nagari Aka Barayun, Harau District, Fifty Cities District, West Sumatra. Isolation of fungi using Potato Dextrose Agar (PDA) medium, phosphate solvent activity test using Pikovskaya medium. The results showed that 5 isolates of endophytic fungi were successfully isolated from chimpanzee fern trichomes with different macroscopic morphologies: spherical shape, various colors, cotton-like texture, smooth surface. Phosphate solubilizing activity test showed that only ETK 4 isolate had phosphate solubilizing activity with the highest IKF of 0.7.
Potency of Yeast from Orange Peel’s Ecoenzyme as Antimicrobe Elsa Sri Handayani; Dezi Handayani; Irdawati Irdawati; Violota Violita
Jurnal Serambi Biologi Vol. 8 No. 3 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

Orange peels can still be utilized even though they are categorized as waste. Orange peels still have quite a lot of nutrients and contain various active compounds. Orange peels can be used as a source of organic material for the manufacture of ecoenzyme. The ecoenzyme produced from orange peel has a distinctive and fragrant aroma so that it is preferred compared to ecoenzyme made from other organic materials. During the ecoenzyme fermentation process, there are various types of bacteria and fungi that grow, but their roles are not yet known. The results of previous research obtained eight yeast isolates from the fermentation process of orange peel ecoenzyme, but only six isolates can be tested because two isolates are contaminated. The purpose of this study was to see the potential of yeast from citrus peel ecoenzyme as an antimicrobial. The antimicrobial activity test method used was the agar solid diffusion test. The presence of antimicrobial activity is characterized by a zone of inhibition around the colony of yeast isolates. The results showed that all isolates of yeast from orange peels ecoenzyme were able to inhibit the growth of E. coli and only five isolates were able to inhibit the growth of S. aureus, but none were able to inhibit C. albicans. The diameter of the inhibition zone against E. coli ranged from 8.3 mm to 17.5 mm while S. aureus ranged from 7.8 mm to 12.9 mm. Therefore, yeast derived from orange peel ecoenzyme has potential as an antimicrobial, especially against E. coli. and S. aureus.
Isolation of Phosphate Recruiting Endophytic Fungi from the Leaves of the Symphony Fern Plant (Cibotium Barometz (L.) J.Sm) Safira Nurul Fadila; Dezi Handayani; Azwir Anhar; Violita Violita
Jurnal Serambi Biologi Vol. 8 No. 2 (2023): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

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Abstract

Phosphate is one of the elements needed in large quantities for plant growth and development. Phosphate can be found in soil, but generally in the form of bound phosphate, so that it cannot be used by plants. Generally, farmers overcome the availability of phosphate for plants using phosphate fertilizer, but this method is not effective. Another alternative is needed to overcome the availability of phosphate in the soil. One alternative that can be used is to use phosphate-solubilizing endophytic fungi. Phosphate-solubilizing endophytic fungi can be isolated from the leaves of the Simpei fern (Cibotium barometz (L.) J.Sm.). The Simpei fern plant contains organic acids, so endophytic fungi isolated from the leaves of the Simpei fern plant are expected to produce the same organic acids and be able to dissolve phosphate. Therefore, this study aims to determine the phosphate solubilizing activity of the leaves of the Simpei fern plant. The samples used were the leaves of the symbiotic fern. The fungus obtained was tested using Pikovskaya medium. Phosphate solubilizing activity is characterized by the formation of a clear zone around the fungus colony. Six isolates of endophytic fungi from the Simpei fern plant were obtained, namely D1, D2, D3, D4, D5, and D6. Two isolates have phosphate solubilizing activity, namely isolates D2 and D4. The highest phosphate solubility index was shown by isolate D2 on the first day of 0.8. The phosphate solubility index of all isolates is low. Key words: endophytic fungi, fosfat, isolated, activity
Co-Authors Achyar, Afifatul Ainul Mardiah Alfatimah Azzahra, Balkis AMERIA YUNITA Anisa Asri Anizam Zein Arjulis, Wanda Armen Armen Atifah, Yusni Az-Zahra, Fauziah Azwir Anhar Celsi Ananda Claudia Ayesha Dalilah Linda Sari Lubis, Enny Della Lestari des Dhea Delara Iryanda Dilla, Aprina Dina Sukma Dini Hari Marta Dwi Hilda Putri Eka Vidya Putra Elsa Sri Handayani Elsa Yuniarti Fahra, Fahra Fevria, Resti Finti Nabila, Anggie Fransisco, Sandi Fronica, Imelda Ghean Azrin Mirza Gustina Indriati Haqil Triyatdipa Harlin, Farah Ibtisamah Heffi Alberida Helendra . Ihdina Aurora Nurul Aulia Intan Febriani IRDAWATI Irdawati Irdawati Irdawati Irdawati Irma Lailani Eka Putri Irma Leilani Eka Putri Irma Leilani Eka Putri Kurnia Putri Indrawan Larashinda, Mentari Linda Advinda Linda Wati Mades Fifendy Meriza Fatma Miftahussa'adiah Miftahussa'adiah Moralita Chatri Mukhlis Mukhlis Nabilah, Rezi Nia Ramadhanti Novia Daniati Novita Novenra Nur Shofiatun Nisa Nurul Rahmi Oktavianes Oktavianes Putri Rachma Auliya Putri Rahma Padilla Putri, Irma Leilani Eka Putri, Ulfa Dwi Rafiqi, Aufa Rahmawati Darussyamsu Rahmi Holinesti Rani Zahara Rara Via Jonet Relsas Yogica, Relsas Resti Yulia Ristiono Ristiono Roza Yolanda Rusendra, Nabilla Makra S. Syamsurizal Safira Nurul Fadila Samsuriani Siregar Selaras, Ganda Hijrah Silfani, Novia Silviana Okwisan Siti Nurayni Sity Sarroh Sri Suciati Ningsih Sukma Yuliana Syahrastani, Syahrastani Syiifa kamila Namidya tut anggraini Vauzia, Vauzia Violita Violita Violita Violita Windi Nopitasari Y Yusrizal YOLANDA, PUTRI Yulanda Saputri Yuni Ahda Yusrizal Yusrizal Yusrizal Yusrizal zultsatunni'mah zultsatunni'mah