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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia Agroland : Jurnal Ilmu-Ilmu Pertanian Berkala Ilmiah Pertanian Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Penelitian Tanaman Industri Jurnal Ilmu-Ilmu Pertanian Indonesia JURNAL AGROTEKNOLOGI Jurnal Perlindungan Tanaman Indonesia JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Agrin : Jurnal Penelitian Pertanian Indonesian Journal of Agricultural Research Jurnal Agro Wiralodra Jurnal Penelitian Tanaman Industri (Littri) Agroland: Jurnal Ilmu-ilmu Pertanian
Triwidodo Arwiyanto
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Environmental Science Industrial & Manufacturing Engineering Medicine & Pharmacology Social Sciences Veterinary

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Biological Control of Plant Disease Caused by Bacteria Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 18, No 1 (2014)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5557.393 KB) | DOI: 10.22146/jpti.15352

Abstract

Bacterial diseases in plants are difficult to control. The emphasis is on preventing the spread of the bacteria rather than curing the diseased plant. Integrated management measures for bacterial plant pathogens should be applied for successfull control. Biological control is one of the control measures viz. through the use of microorganisms to suppress the growth and development of bacterial plant pathogen and ultimately reduce the possibility of disease onset. The study of biological control of bacterial plant pathogen was just began compared with of fungal plant pathogen. The ecological nature of diverse bacterial plant pathogens has led scientists to apply different approach in the investigation of its biological control. The complex process of entrance to its host plant for certain soil-borne bacterial plant pathogens need special techniques and combination of more than one biological control agent. Problem and progress in controlling bacterial plant pathogens biologically will be discussed in more detail in the paper and some commercial products of biological control agents (biopesticides) will be introduced.  Penyakit tumbuhan karena bakteri sulit dikendalikan. Penekanan pengendalian adalah pada pencegahan penyebaran bakteri patogen dan bukan pada penyembuhan tanaman yang sudah sakit. Untuk suksesnya pengendalian bakteri patogen tumbuhan diperlukan cara pengelolaan yang terpadu. Pengendalian secara biologi merupakan salah satu cara pengendalian dengan menggunakan mikroorganisme untuk menekan pertumbuhan dan perkembangan bakteri patogen tumbuhan dengan tujuan akhir menurunkan kemungkinan timbulnya penyakit. Sifat ekologi bakteri patogen tumbuhan yang berbeda-beda mengharuskan pendekatan yang berbeda pula dalam pengendaliannya secara biologi. Masalah dan perkembangan dalam pengendalian bakteri patogen tumbuhan secara biologi didiskusikan secara detail dalam makalah ini.
Biological Control of Bacterial Wilt in South East Asia Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 18, No 2 (2014)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.15603

Abstract

Bacterial wilt disease caused by Ralstonia solanacearum destroys many crops of different plant families in South East Asia despite many researches about the disease, and the availability of developed control method in other parts of the world. There is no chemical available for the bacterial wilt pathogen and biological control is then chosen as an alternative to save the crops. Most of the biological control studies were based on antagonism between biological control agent and the pathogen. The biological control agents were intended to reduce the initial inoculum of the pathogen. The effort to minimize the initial inoculum of the pathogen by baiting with the use of hypersensitive host-plant was only reliable when conducted in the greenhouse experiments. Various microorganisms have been searched as possible biological control agents, for instance avirulent form of the pathogen, soil or rhizosphere bacteria (Bacillus spp. and fluorescent pseudomonads), actinomycetes (Streptomyces spp.), yeast (Pichia uillermondii, Candida ethanolica), and a consortium of microorganisms known as effective microorganisms (EM). None of these biological control agents has been used in field application and they need further investigation in order to effectively control bacterial wilt. Opportunities and challenges in developing biological control to combat bacterial wilt are discussed in the paper.Penyakit layu bakteri yang disebabkan oleh Ralstonia solanacearum menghancurkan banyak tanaman dalam famili yang berbeda di Asia Tenggara meskipun telah banyak penelitian tentang metode pengendaliannya. Penyakit ini sulit dikendalikan karena banyaknya variabilitas patogen dan belum tersedianya sumber ketahanan yang mapan. Di samping itu, sampai saat ini belum ada bahan kimia yang tersedia untuk patogen layu bakteri ini sehingga pengendalian biologi kemudian dipilih sebagai cara alternatif untuk menyelamatkan tanaman. Sebagian besar penelitian pengendalian biologi didasarkan pada antagonisme antara agen pengendalian biologi dan patogen. Agen pengendalian biologi tersebut dimaksudkan untuk mengurangi inokulum awal patogen. Upaya untuk meminimalkan inokulum awal patogen dengan umpan dengan menggunakan tanaman inang sangat rentan hanya dapat diandalkan ketika dilakukan dalam percobaan rumah kaca. Berbagai mikroorganisme telah diteliti kemungkinannya sebagai agensia pengendalian biologi seperti bentuk avirulen dari patogen, bakteri tanah atau bakteri rizosfer (Bacillus spp. dan pseudomonad fluorescen), actinomycetes (Streptomyces spp.), khamir (Pichia guillermondii, Candida ethanolica), dan konsorsium mikroorganisme yang dikenal sebagai EM (Effective Microorganisms). Meskipun demikian tidak satupun agensia pengendalian biologi ini sampai pada taraf aplikasi lapangan sehingga diperlukan penelitian lebih lanjut. Peluang dan tantangan dalam mengembangkan pengendalian biologi untuk memerangi penyakit layu bakteri dibahas pada tulisan ini.
Obituari: Dr. Ir I. Hartana Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 20, No 2 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.17545

Abstract

Resistance Test of Several Tomato Varieties to Bacterial Wilt Diseases Caused by Ralstonia solanacearum Putri Laeshita; Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 21, No 1 (2017)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.23171

Abstract

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Responses of Tomatoes Grafting Using Variation of Rootstock against Virus Infection and Tomato Yields Tri Retno Widyastuti; Sri Sulandari; Sedyo Hartono; Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.31056

Abstract

Grafting methods on tomato have been done to reduce the infection rate of various pathogens. Begomovirus and Crinivirus are important viruses in tomato plants. The research aimed to determine the resistance response of tomato plants to viral infection, and tomato production. Field research was conducted in Harjobinangun, Pakem, Sleman, Yogyakarta in the endemic area of the viral diseases transmitted by Bemisia tabaci. This experiment used a Completely Randomized Design non-factorial with “Servo” as scion and “Amelia”, “H-7996”, “Mawar” as rootstock. The disease development, presence of viral diseases, and tomato yields were observed. PCR detection using Krusty & Hommr primer successfully amplified Begomovirus DNA bands with an approximate size of 580 bp in tomato plant with interveinal chlorosis, curling, thick, rigid, and stunt symptoms. Chlorotic spots and yellowing symptoms successfully amplified using ToCV-CF/ToCV-CR specific primer for the amplification of Tomato chlorosis virus with DNA band approximately size of 360 bp, whereas using TICV-CF/TICV-CR specific primer could not amplify the virus cDNA. The leaves roll upward with purple interveinal symptoms that were not infected by both viruses. Both viral infections affected the quality of the fruit which indicated by a higher number of abnormal fruits. “Servo” grafted onto “Amelia” and non-grafted Servo were tolerant to viral infection, “Servo” grafted onto “H-7996” or to “Mawar variety were susceptible to viral infection, self-grafted Servo were very susceptible to viral infection. 
Respons Ketahanan Tembakau terhadap Tobamovirus dengan Agens Hayati sebagai Induser Riska Awalia Putri; Sri Sulandari; Christanti Sumardiyono; Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 22, No 2 (2018)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.31241

Abstract

Tobamovirus is one of the important pathogen that  decrease   the quantity and quality  of cigar tobacco cultivation. One of the alternative control of this disease is by using rhizosphere biological agents such as Bacillus spp., Streptomyces spp., and mycorrhiza. This study aims to determine the effectiveness and mechanism of the biological agents singly and in combination to induce cigar tobacco plant resistance of the F1 (TV38xG) variety in the greenhouse. The biological agents were applied on the root of tobacco during nursery and transplanting. The virus inoculation was performed 10 days after transplanting. The results showed that the treatment with Bacillus spp., Streptomyces spp., and mycorrhizal were capable to decrease disease incidence by delaying mosaic symptoms  for 6-day in a single treatment and 3 days in combination treatment. The treatment of Bacillus spp., Streptomyces spp., and mycorrhiza both in single and in combination were capable to decrease the disease intensity for 26%, 23%, 15%, and 10%, respectively. Induced resistance was performed by increased peroxidase activity in the treatment of mycorrhiza as much as 29.27%, Bacillus spp. 20.65%, and Streptomyces spp. 11.10%. Protein analysis with SDS-PAGE of tobacco plants  showed the difference in profile and size of protein bands. Protein bands measuring 17 kDa and 30 kDa were found in tobacco infected Tobamovirus but was not found in healthy tobacco. The single application of Bacillus spp., Streptomyces spp., and mycorrhiza on tobacco infected Tobamovirus  increase plant growth including plant height as much as 53.71%, number of leaves 57%, stem diameter 29.40%, root length 60.77%, fresh weight of leaves 196.90%, and dry weight of leaf of 265.31%. IntisariTobamovirus merupakan salah satu patogen penting yang menyebabkan penurunan kuantitas dan kualitas pada budidaya tembakau cerutu. Salah satu alternatif pengendalian penyakit ini menggunakan agens hayati pengkoloni akar yaitu Bacillus spp., Streptomyces spp., dan Mikoriza. Penelitian bertujuan untuk mengetahui efektivitas dan mekanisme agens hayati secara tunggal dan kombinasi dalam menginduksi ketahanan tanaman tembakau cerutu varietas F1 (TV38xG) di rumah kaca. Agens hayati diaplikasikan pada perakaran tembakau pada saat pembibitan dan pindah tanam. Inokulasi virus dilakukan 10 hari setelah pindah tanam. Hasil penelitian menunjukkan bahwa perlakuan Bacillus spp., Streptomyces spp., dan Mikoriza dapat menurunkan insidensi penyakit dengan menunda munculnya gejala mosaik 6 hari pada perlakuan tunggal dan 3 hari pada perlakuan kombinasi. Perlakuan Bacillus spp., Streptomyces spp., dan Mikoriza secara tunggal, dan kombinasi dapat menurunkan intensitas penyakit mosaik berturut-turut 26%, 23%, 15%, dan 10%. Induksi ketahanan terbentuk melalui peningkatan aktivitas peroksidase pada perlakuan Mikoriza 29,27%, Bacillus spp. 20,65%, Streptomyces spp. 11,10%. Analisis protein dengan SDS-PAGE diperoleh adanya perbedaan profi dan ukuran pita protein. Ditemukan pita protein berukuran 17 kDa dan 30 kDa pada tembakau yang terinfeksi Tobamovirus tetapi tidak ditemukan pada tembakau sehat. Aplikasi Bacillus spp., Streptomyces spp., dan Mikoriza secara tunggal pada tanaman tembakau yang terinfeksi Tobamovirus berpengaruh baik terhadap pertumbuhan tanaman. Tinggi tanaman meningkat 53,71%, jumlah daun 57%, diameter batang 29,40%, panjang akar 60,77%, berat segar daun 196,90%, dan berat kering daun 265,31%. 
Perancangan Primer Spesifik Subspesies Berbasis Gen Endoglukanase untuk Deteksi Ralstonia syzygii subsp. syzygii Bambang Trianom; Triwidodo Arwiyanto; Tri Joko
Jurnal Perlindungan Tanaman Indonesia Vol 22, No 2 (2018)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.32217

Abstract

Ralstonia syzygii subsp. syzygii that belong to Ralstonia solanacearum species complex is the cause of Sumateran disease of clove. The disease was reported to cause widespread devastation on clove plantings in Indonesia. One of the control strategies is to reduce the spread of the disease through early detection on clove seedlings. The study aimed to design the specific primers based on endoglucanase (egl) gene of R. syzygii subsp. syzygii as a tool for early diagnosis. The analyses were conducted on development of specific primers design using egl sequences retrieved from GenBank, Polymerase Chain Reaction (PCR), primers sensitivity and specificity test. The pair of primers UGMRss-F (5’-GCTCACCATCGC CAAGGACAGCG-3’) and UGMRss-R (5’-TTCGATCGAACGCCTGGTTGAGC-3’) could amplify R. syzygii subsp. syzygii at ~378 base pairs with 0.8 ng/µl minimum concentration of DNA. The primers was specific to R. syzygii subsp. syzygii but not to other bacterial species even in the same phylotype. IntisariRalstonia syzygii subsp. syzygii merupakan bakteri yang termasuk dalam kelompok Ralstonia solanacearum species complex yang menyebabkan penyakit Sumatera pada tanaman cengkih. Penyakit ini menyebabkan kerugian yang sangat besar dan sampai saat ini belum ditemukan cara pengendalian yang efektif. Salah satu  upaya pencegahan penyakit adalah melalui deteksi dini dan mencegah penyebaran penyakit melalui peredaran bibit dari areal yang endemis. Penelitian ini bertujuan untuk merancang primer spesifik berbasis gen endoglukanase (egl) sebagai upaya deteksi dini penyakit Sumatera. Analisis yang dilakukan  meliputi  desain primer spesifik dengan menggunakan data sekuens gen egl dari GenBank, Polymerase Chain Reaction (PCR), uji kepekaan primer dan uji kekhususan primer. Desain primer yang berhasil dirancang terdiri dari UGMRss-F (5’- GCTCACCATCGCCAAGGACAGCG-3’) dan UGMRss-R (5’-TTC GATCGAACGCCTGGTTGAGC-3’) dengan amplikon ~378 pasang basa. Pada konsentrasi DNA 0,8 ng/µl, secara peka R. syzygii subsp. syzygii masih dapat teramplifikasi dengan baik. Primer ini juga hanya dapat mendeteksi R. syzygii subsp. syzygii dan tidak untuk bakteri lain bahkan pada filotipe yang sama.
Selection and Inheritance of Tomato Resistance against Ralstonia solanacearum Isna Maulida; Rudi Hari Murti; Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 23, No 1 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.35464

Abstract

Ralstonia solanacearum is a plant pathogen causes wilting which is a major obstacle in the cultivation of tomato plants. In plant breeding, knowledge of the source of resistance genes and inheritance patterns is important in the development of bacterial wilt resistant varieties. This study aimed to obtain bacterial wilt resistant lines and to find out the inheritance pattern of tomato resistance to bacterial wilt. Selection of resistant plant involved the selected breeding lines from irradiation and crossing collections of the Genetic Laboratory, Faculty of Agriculture, Universitas Gadjah Mada. Introduced lines of H-7996 and F1 Permata and Timoti were used as a control. H-7996 as resistant parents and GM2 as susceptible parents, and their offspring include F1 GM2 x H-7996, F1 reciprocal, F2, Back Cross 1 (F1 x GM2), and Back Cross 2 (F1 x H-7996) used in testing inheritance patterns. Inoculation was carried out 1 week after planting by pouring 100 ml of water suspension of R. solanacarum (108  cfu/ml) on the roots. Completely Randomized Design (CRD) was used in this experiment. The scoring observation was carried out every week for one month. This study showed that Permata as a control was the most resistant, while Timoti and H-7996 were medium resistant. The CLN, G6, G8, and G7 lines were susceptible medium, yet only G8 and G7 with the smallest percentage of disease intensity and not significantly different than Timoti. The resistance gene to bacterial wilt on H-7996 was controlled by genes in the cell nucleus with additive-dominant gene action. Resistance to bacteria has a moderate level of heritability.
The Role of Anthocyanin Content of Garden Balsam’s (Impatiens balsamina L.) Flower Extract on the Growth of Ralstonia solanacearum Djati Widhityarini; Rani Agustina Wulandari; Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 23, No 2 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.36241

Abstract

The study was aimed to determine the response of bacterial growth of Ralstonia solanacearum  Race  I of  biovar  III  phylotype  I  treated  with  flower  extract  of Garden Balsam (Impatiens balsamina L.) on different color of flower, that was able to give the strongest antibacterial compound and to determine the physical characteristics of I. balsamina in order to facilitate the purpose of the garden balsam cultivation as antibacterial. In addition, this study also aimed to determine the highest total anthocyanin content (TAC) and to determine the molecular characteristics of anthocyanin-coding genes and DNA base sequences of I. balsamina that indicated antibacterial properties. The research used Completely Randomized Design (CRD) 2 X 4 each with 3 replications. The first factor was the method of plating bacteria culture (pour plate and streak plate method), the second factor was the color of the garden balsam flower extracts consisted of white, red, purple and magenta. Therefore, the experiment consisted of 8 treatments of combination. Data were analyzed using CRD (α = 0.05). The results showed that the average combination of pour plate and red flower extract gave the value of resistance velocity on the 3rd day with the diameter of the inhibition zone was 33.46 mm, with the inhibitory zone diameter of the garden balsam extract of 22.90 mm. Red flower plants showed a bright red stem on the braches and the pointed leaf edge. Although this red does not show the total content of anthocyanin compounds higher than purple, however from RAPD analysis for red color indicated the anthocyanin of pelargonidin as an anthocyanin compound responsible for its antibacterial properties.
Suppressing Bacterial Wilt (Ralstonia solanacearum) by Grafting Tomato Seedlings Grown on Six Comparable Media Anggita Rahmawati; Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 24, No 1 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.51430

Abstract

Bacterial wilt caused by Ralstonia solanacearum is an important disease of tomatoes. The grafting method with a resistant rootstock variety is a reliable control technique and has been carried out in many countries. Healthy tomato seedling are needed for grafting so this study was aimed to find a good seedling medium to grow the upper stem and rootstock of tomato for grafting and to know the effect of seed media on the intensity of bacterial wilt). Tomato seeds were grown in coir and rice husk charcoal with ratio A (10:0), B (9:1), C (8:2), D (7:3), E (6:4), F (5:5) (coir : rice husk charcoal, v/v). Seedlings were watered regularly and after seedlings aged 21 days, the grafting was conducted. Agronomic observations were justified by measuring germination style, plant height, leaf area, fresh mass and dry mass of plants at 21 days after planting. Tomato seedlings were grafted by using H-7996 variety as a rootstock and Servo variety as an upper stem. Tomato seedlings were transplanted into polybags and then inoculated with R. solanacearum (108 CFU/ml). The disease intensity and AUDPC (Area Under Disease Progress Curve) were recorded. The results revealed that the media with a ratio of 8:2 (coir : rice husk charcoal, v/v) is the best medium for growing tomatoes and the grafting treatment could reduce the disease intensity of bacterial wilt by 40% compared with non grafted treatment and reduce 16% disease intensity compared to the grafted treatment with seedling sown in other ratio media at the last observation.
Co-Authors . Supriyanto Achmadi Priyatmojo Alifia Nur Ayusma Anggita Rahmawati Ani Widiastuti, Ani Ari Astuti Arif Wibowo Asrul Asrul Asrul Asrul Asrul Azizah Ridha Ulilalbab Bambang Hadisutrisno Bambang Hadisutrisno Bambang Hadisutrisno Bambang HADISUTRISNO Bambang Hendro Sunarminto Bambang Trianom CHRISNAWATI CHRISNAWATI CHRISTANTI CHRISTANTI Christanti Sumardiyono Didik Indradewa Didik Indradewa Djati Widhityarini Dwimartina, Fina Elizabeth Handini Gembong Dalmadiyo Heru Adi Djatmiko I. Hartana I. Hartana IKA MARISKA Irpawa, Dea Musytari Intan Isna Maulida JAKA WIDADA Jaka Widada Jaka Widada Kharis Haryono Lisa Navitasari Murti, Rudi Hari NASRUN NASRUN NASRUN NASRUN Nur Prihatiningsih Putri Laeshita Riska Awalia Putri Rudi Hari Murti Saputra, Rachmad SEDYO HARTONO Sri Sulandari Sri Sulandari Sri Sulandari SRI SULANDARI Sudarmadi Sudarmadi Suhartiningsih Dwi Nurcahyanti Tati Suharti Tati Suharti Toekidjo Martoredjo Toekidjo Martoredjo Tri Joko Tri Joko Tri Joko Tri Joko Tri Retno Widyastuti Wulandari, Rani Agustina Y. M. S. Maryudani Yenny WURYANDARI