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Begomoviruses on two chili types in Southeast Sulawesi Indonesia: variation of symptom severity assessment and DNA-betasatellite identification Taufik, Muhammad; Firihu, Muhammad Zamrun; Hasan, Asmar; HS, Gusnawaty; Variani, Viska Inda; Syair, Syair; Botek, Muhammad
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 24 No. 1 (2024): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.1241-9

Abstract

The association of viral satellite DNA with Begomoviruses influences symptom expression in infected plants. Normalized Difference Vegetation Index (NDVI) is an image processing method used to assess plant health based on the plant’s ability to absorb sunlight for photosynthesis. Therefore, this study aims to assess symptom severity based on symptom variation and NDVI, as well as to detect and identify the presence of beta-satellite DNA associated with chili plants. The study was conducted in North Kolaka Regency, Southeast Sulawesi Province, Indonesia. It involved observations and image recording of symptom variations in the sampled cayenne and big red chili plants, followed by the detection of beta-satellite DNA in the samples using the polymerase chain reaction (PCR). The results confirmed the presence of non-coding satellite DNA associated with the Pepper yellow leaf curl Indonesia virus (PepYLCIV) in all severe, mild, or asymptomatic plant samples. In the phylogenetic tree, the non-coding satellite DNA isolates from Southeast Sulawesi are included in the betasatellite group and exhibit different genetic characteristics from other isolates available in the GenBank database. The cayenne chili with severe symptoms had lower NDVI values than the mild and asymptomatic categories, indicating that this type of chili with severe symptoms had a lower ability to absorb light. Further studies are needed to characterize the alpha-satellite type in the Southeast Sulawesi region for potential use in cross-protection mechanisms against plant virus infections.
The changes of chili leaf structure by Geminivirus infection Taufik, Muhammad; Firihu, Muhammad Zamrun; HS, Gusnawaty; Variani, Viska Inda; Hasan, Asmar; Botek, Muhammad; Tihurua, Eka Fatmawati; Wulansari, Tri Yuni Indah
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 24 No. 1 (2024): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.124109-119

Abstract

The Geminivirus in chili plants is a significant problem in chili cultivation. Symptoms of Geminivirus infection are quite easy to find in chili plants because the symptoms are quite typical: mosaic, yellowing, small leaves, leaf lamina malformation, and stunting. The visual changes in leaf morphology are due to the leaf tissue structure, such as the upper and lower epidermis and the mesophyll tissue, including the palisade and sponge. There is little information about changes in the structure of chili plants infected with the Geminivirus. Therefore, this study aims to add information about changes in the leaf tissue structure of chili plants infected with the Geminivirus. The structural changes observed were palisades. Long palisades were less preferred by whiteflies, so the incidence of geminivirus disease was lower. This information is a reference for assembling chili plants with better structural resistance. The method used was a cross-section of chili leaves, double staining, and observation with a light microscope. Observations on mild symptoms showed epidermal cells shrinking. Some parts of palisade leaves were composed of two layers with shortened cells and tend to be oval. The symptom is that the upper epidermal cells were shrunken, and the palisade also tends to shorten. Severe symptoms of the epidermis on the leaves were curly, shriveled, thinned, and even dying; the palisade is shortened and sometimes looks irregular/tight. Changes in the leaf tissue of chili plants infected with the Geminivirus cause changes at the ultra-structural, cell, or tissue level, depending on the type of virus attack and the attack level.
Sosialisasi Penganggulangan Hipertensi dan Pemeriksaan Kesehatan [Socialization of Hypertension Prevention and Health Check-ups] Yuniar, Nani; Firihu, Muhammad Zamrun; Santoso, Djarot Heru; Aba, La; Hindariatiningsih, Nanik; Variani, Viska Inda
Indonesia Berdaya Vol 6, No 3 (2025)
Publisher : UKInstitute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47679/ib.20251199

Abstract

Abstract. Hypertension is a medical condition characterized by an increase in blood pressure above the normal limit, which is 120/80 mmHg. If left untreated, hypertension can lead to various serious complications, such as coronary heart disease, stroke, and kidney failure. The importance of socializing information about hypertension prevention cannot be ignored, as many people are unaware that they suffer from this condition. Education about risk factors, such as unhealthy eating patterns, lack of physical activity, and stress, as well as the importance of a healthy lifestyle, can help the community understand how to prevent hypertension. Socialization efforts involving the community can increase awareness and encourage individuals to take proactive steps in maintaining their health. Regular health check-ups, especially blood pressure measurements, are crucial steps in detecting hypertension early. By undergoing regular check-ups, individuals can identify health problems earlier and take the necessary actions to maintain the health of their heart and blood vessels. Abstrak. Hipertensi merupakan kondisi medis yang ditandai dengan peningkatan tekanan darah di atas batas normal, yaitu 120/80 mmHg. Jika tidak ditangani, hipertensi dapat menyebabkan berbagai komplikasi serius, seperti penyakit jantung koroner, stroke, dan gagal ginjal. Pentingnya sosialisasi mengenai penanggulangan hipertensi tidak dapat diabaikan, karena banyak orang yang tidak menyadari bahwa mereka menderita kondisi ini. Edukasi tentang faktor risiko, seperti pola makan yang tidak sehat, kurangnya aktivitas fisik, dan stres, serta pentingnya gaya hidup sehat, dapat membantu masyarakat memahami cara mencegah hipertensi. Sosialisasi penanggulangan hipertensi  yang melibatkan masyarakat dapat meningkatkan kesadaran dan mendorong individu untuk mengambil langkah proaktif dalam menjaga kesehatan mereka.Pemeriksaan kesehatan secara rutin, terutama pengukuran tekanan darah, adalah langkah krusial dalam mendeteksi hipertensi sejak dini. Dengan melakukan pemeriksaan secara berkala, individu dapat mengidentifikasi masalah kesehatan lebih awal dan mengambil tindakan yang diperlukan untuk menjaga kesehatan jantung dan pembuluh darah mereka
Simulasi Numerik Reaksi Fusi Nuklir dengan menggunakan Metode Wong Firihu, Muhammad Zamrun; Variani, Viska Inda; Justina, J
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 01 (2016): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i01.1800

Abstract

The numerical simulation for calculating the cross section of fusion reaction is done by using Wong formula. We especially calculated the cross section for the fusion reaction of light systems, i.e. 12C+12C, 16O+12C and 16O+16O reactions. We compared the obtained cross section with experimental data. In order to check the accuracy of the calculations, the chi-square analisys is then permormed. We found that the simulation results of the fusion cross section obtained using Wong Formula well explain the experimetal data of the fusion cross section for the 12C+12C, 16O+12C and 16O+16O reactions. This finding indicates that the Wong formula can be used for studing the fusion reaction of light systems.
Analisis Energi Osilator Harmonik Menggunakan Metode Path Integral Hypergeometry dan Operator Sholihah, Fuzi Marati; S, Suparmi; Variani, Viska Inda
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 2, No 02 (2012): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v2i02.1280

Abstract

Solution of the harmonic oscillator equation has a goal to get the energy levels of particles moving harmonic. The energy spectrums of one dimensional harmonic oscillator are analyzed by 3 methods: path integral, hypergeometry and operator. Analysis of the energy spectrum by path integral method is examined with Schrodinger equation. Analysis of the energy spectrum by operator method is examined by Hamiltonian in operator. Analysis of harmonic oscillator energy by 3 methods: path integral, hypergeometry and operator are getting same results ? = ℏ? (? + 1 2)