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All Journal Plumula : Berkala Ilmiah Agroteknologi Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Mas'udi, Ach. Fauzan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Energy Engineering Immunology & microbiology Materials Science & Nanotechnology

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Land Use and Land Cover (LULC) Change in Eastern Areas of East Java From 1972 To 2021: Learning From Landsat Image Mandala, Marga; Indarto, Indarto; Mas'udi, Ach. Fauzan; Saputra, Akhmad Andi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 12 No. 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.1022-1035

Abstract

Urban development, population growth, high traffic jams, and intensive disaster events are indicators of changing the landscape of the eastern area of East Java. Investigating these changes is vital for planning and environmental protection in the future. This study examines changes in land use and land cover (LULC) during the past 50 years in the eastern part of East Java from 1972 to 2021. The changes are examined by contrasting four maps derived from Landsat images (1972, 1997, 2013, and 2021). The following are the main study procedures: (1) data inventory, (2) field survey, (3) image processing and classification, and (4) interpretation of LULC changes. With Google Earth Engine, all photos are downloaded (GEE). Landsat image classification was completed using the maximum likelihood algorithm with an overall Kappa accuracy of>85%. Eight (8) major classifications are therefore produced by the classification: (1) the pavement or urban area (PUA); (2) heterogeneous agricultural land (HAL); (3) bare soil (BS); (4) paddy field (PF); (5) open water body (OWB); (6) vegetation/plantation (VG); (7) shrubland (SL); and (8) wetlands (WL). In the areas with rapid development, the LULC change is more pronounced, i.e., Pasuruan, Jember, and Banyuwangi Regencies. LULC change in and near mid-regency and the rural regions comes next. Over the past fifty years, regional growth has resulted in increases in PUA (+4.4 percent), PF (+12.2 percent), and VG (+17.9 percent). On the other hand, the development has decreased SL, BS, and HAL by 5.8 and 15.9 percent, respectively (-13.1 percent ). LULC alterations for human activities have profoundly altered the natural landscape. Keywords:  East Java, GEE, Image Processing, Landsat, LULC
Pemodelan Interaksi Protein GF14–XopQ secara In-Silico sebagai Pendekatan Bioinformatika untuk Mendukung Studi Ketahanan Padi terhadap Xanthomonas oryzae pv. oryzae (Xoo) Prasetyo, Nur Andita; Wijayanto, Yagus; Mas'udi, Ach. Fauzan; Mas’ud Hermansyah; Novitasari, Adin; Nisa, Aminatun; Muhtadi, Much. Misbah; Utami, Sri Rejeki; Pratama, Agus Wedi; Hermansyah, Mas’ud; Pinasthika, Stanislaus Jiwandana
Plumula : Berkala Ilmiah Agroteknologi Vol. 14 No. 1: Januari 2026
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/plumula.v14i1.280

Abstract

Protein GF14 berperan penting dalam regulasi jalur sinyal pertahanan tanaman, sementara XopQ merupakan efektor utama yang disekresikan Xanthomonas oryzae pv. oryzae (Xoo) untuk menekan imunitas padi. Akan tetapi, mekanisme interaksi GF14–XopQ belum dipahami secara komprehensif. Penelitian ini memodelkan interaksi GF14–XopQ menggunakan pendekatan bioinformatika melalui docking protein–protein menggunakan ClusPro dan estimasi energi ikatan menggunakan PRODIGY. Dari 30 cluster yang dihasilkan, Cluster 4 merupakan model paling stabil dengan energi bebas ikatan ΔG = –11,5 kcal/mol dan dissociation constant (Kd) ≈ 3,4×10⁻⁹ M. Analisis antarmuka mengungkap dominasi interaksi hidrofobik, ikatan hidrogen, dan kontak elektrostatik pada groove konservatif GF14. Temuan ini mengindikasikan bahwa XopQ berpotensi berikatan kuat dengan GF14 dan mungkin mengganggu jalur pertahanan padi. Hasil penelitian ini menjadi dasar bagi studi lanjutan seperti pemodelan mutasi, dinamika molekuler, dan validasi eksperimental.
Co-Authors Akhmad Andi Saputra, Akhmad Andi Hermansyah, Mas’ud Indarto Indarto Mandala, Marga Mas’ud Hermansyah Muhtadi, Much. Misbah Nisa, Aminatun Novitasari, Adin Pinasthika, Stanislaus Jiwandana Prasetyo, Nur Andita Pratama, Agus Wedi Utami, Sri Rejeki Yagus Wijayanto