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Journal : Biospecies

Isolasi dan Karakterisasi Fungi Pyricularia oryzae Penyebab Penyakit Blast pada Tanaman Padi Astriawati, Fitri; Anfa, Qurrotul
Biospecies Vol. 18 No. 1 (2025): Januari 2025
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v18i1.38524

Abstract

Blast disease caused by the fungus Pyricularia oryzae is one of the major diseases in rice plants (Oryza sativa) that can significantly reduce crop yields. This research aims to isolate and characterize P. oryzae macroscopically and microscopically. This study is exploratory research. The research methods include sampling leaves and stems of rice plants showing blast symptoms, isolating the fungus from infected plant tissues, and characterizing the macroscopic and microscopic features of the isolated fungi. The results showed that P. oryzae grown on PDA medium has colonies that are round with smooth edges, a velvety surface texture, light gray to dark gray with a blackish center, and white to gray concentric ring-like margins. Microscopically, the fungi P. oryzae produce asexual spores known as conidia that are pyriform in shape with two septa dividing the conidia into three cells. The conidia are attached to the tips or branches of conidiophores. The conidiophores of P. oryzae are transparent to brownish, tubular, long filaments, septate, and thicker at the base. This identification provides important information for more effective control of blast disease and the development of sustainable disease management strategies
IMPLEMENTASI UPAYA PEMANFAATAN Pinus merkusii DI DESA NGRAYUDAN, JOGOROGO, NGAWI Agnafia, Desi Nuzul; Anfa, Qurrotul; Widyawati, Ratna Tri; Khoirunnisa, Fatimah; Rahmawati, Rizka Novia
Biospecies Vol. 19 No. 1 (2026): Januari 2026 (In press)
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v19i1.52329

Abstract

Pine forests (potential. However, their utilization by communities around forest areas is still limited, Pinus merkusii) are a forest resource with great economic, ecological, and social especially in terms of getah tapping and the use of the area as a tourist attraction. This study aims to analyze community efforts in utilizing P. merkusii in the Selo Ondo tourist area, Ngrayudan Village, Jogorogo District, Ngawi Regency, and to identify other potential uses that have not been optimized. This study employs a qualitative descriptive research method through direct observation and interviews with communities surrounding the tourist area. Data analysis is conducted using data reduction, data presentation, and data verification techniques. The results show that the utilization of pine trees by the community is still not optimal and has not led to the diversification of value-added products. Utilization is still focused on pine sap and environmental services in the form of nature tourism. Meanwhile, other parts of the pine tree, such as needles, flowers, and organic waste, have great potential to be developed as bioenergy products, handicrafts, and educational ecotourism support. Lack of knowledge, skills, and guidance are the main factors hindering the optimization of pine utilization.