scholarly journals Are Trichoderma atroviride and Trichoderma harzianum Effective to Control Fusarium Associated With Tomato Wilt?

2021 ◽  
Vol 15 (3) ◽  
pp. 2
Author(s):  
Wilfridus Adyatma Putranto ◽  
Rully Adi Nugroho ◽  
Petrus Sunu Hardiyanta ◽  
Desti Christian Cahyaningrum
Keyword(s):  
Biological Control ◽  
Pathogenic Fungi ◽  
Fungal Species ◽  
Culture Technique ◽  
Dual Culture ◽  
Trichoderma Atroviride ◽  
Trichoderma Spp ◽  
Fusarium Sp ◽  
Tomato Wilt

The pathogenic fungi, such as Fusarium in the rhizosphere of tomato (Solanum lycopersicum) negatively affects the yield and quality of the plant. A number of biological control agents have been used for protecting tomato plants against wilt diseases including various fungal species. The objective of this study was to evaluate  the antagonism effects of Trichoderma atroviride and T. harzianum against the pathogen Fusarium sp. associated with tomato wilt. In this study, the antagonism of these Trichoderma spp. against the Fusarium sp. was tested in vitro by the dual culture technique, and the percentage inhibition of radial growth (PIRG) and the antagonism reaction (scale 1-5) were evaluated. The results showed that T. atroviride and T. harzianum led to 70.8% PIRG and scale 1 antagonism reaction, and  40.6% PIRG and scale 3 antagonism reaction against Fusarium sp. associated with tomato wilt after 7 days of incubation, respectively. These results indicate that application of T. atroviride and T. harzianum may be promising approach for biological control of Fusarium wilt of tomato and may play an important role in sustainable agriculture.

scholarly journals Suppression of Stem-End Rot on Avocado Fruit Using Trichoderma spp. in the Central Highlands of Kenya

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
E. K. Wanjiku ◽  
J. W. Waceke ◽  
J. N. Mbaka
Keyword(s):  
Growth Inhibition ◽  
Fungal Pathogen ◽  
Mycelial Growth ◽  
Culture Technique ◽  
Global Market ◽  
Dual Culture ◽  
Postharvest Diseases ◽  
Trichoderma Spp ◽  
Lasiodiplodia Theobromae

Demand for organic avocado fruits, together with stringent food safety standards in the global market, has made producers to use alternative, safe, and consumer-friendly strategies of controlling the postharvest fungal disease of avocado fruits. This study assessed the in vitro efficacy of Trichoderma spp. (T. atroviride, T. virens, T. asperellum, and T. harzianum) against isolated avocado stem-end rot (SER) fungal pathogens (Lasiodiplodia theobromae, Neofusicoccum parvum, Nectria pseudotrichia, and Fusarium solani) using a dual culture technique. The Trichoderma spp. were also evaluated singly on postharvest “Hass” avocado fruits. Spore suspension at 5 × 104 conidial/ml of the Trichoderma spp. was applied on the avocado fruits at three time points, twenty-four hours before the fungal pathogen (preinoculation), at the same time as the fungal pathogen (concurrent inoculation), and 24 hours after the fungal pathogen (postinoculation). In the in vitro study, T. atroviride showed the highest mycelial growth inhibition against N. parvum (48%), N. pseudotrichia (55%), and F. solani (32.95%), while T. harzianum had the highest mycelial growth inhibition against L. theobromae. Trichoderma asperellum was the least effective in inhibiting the mycelial growth of all the pathogens. Similarly, T. virens showed the highest mycelial growth inhibition against N. pseudotrichia at 45% inhibition. On postharvest “Hass” fruits, T. atroviride showed the highest efficacy against N. parvum, N. pseudotrichia, and F. solani in all the applications. Trichoderma virens and T. harzianum were most effective against all the pathogens during postinoculation, while Lasiodiplodia theobromae was best controlled by T. virens, T. harzianum, and T. asperellum during postinoculation. Both T. atroviride and T. harzianum present a potential alternative to synthetic fungicides against postharvest diseases of avocado fruits, and further tests under field conditions to be done to validate their efficacy. The possibility of using Trichoderma spp. in the management of SER on avocado fruits at a commercial level should also be explored.

The antagonistic properties of Trichoderma spp. inhabiting woods for potential biological control of wood-damaging fungi

Holzforschung ◽  
2012 ◽  
Vol 66 (7) ◽  
pp. 883-887 ◽  
Author(s):  
Jaejung Lee ◽  
Nayoon Huh ◽  
Joo Hyun Hong ◽  
Beom Seok Kim ◽  
Gyu-Hyeok Kim ◽  
...  
Keyword(s):  
Biological Control ◽  
Chitinase Activity ◽  
Dual Culture ◽  
Trichoderma Spp ◽  
Trichoderma Longibrachiatum ◽  
Antagonistic Effects ◽  
Volatile Metabolites ◽  
Antagonistic Potential ◽  
Trichoderma Aureoviride

Abstract The antagonistic potential of Trichoderma spp. for biological control of wood-damaging fungi was investigated in the present paper. In vitro assays to investigate antifungal characteristics of Trichoderma spp. were conducted with various wood-damaging fungi. Exo-chitinase activity of the isolates was also measured. Three typical wood decayers and three sap-stainers served as target fungi. The antagonistic abilities of each Trichoderma species differed markedly according to the target fungus. The growth inhibition rates shown by the non-volatile metabolites against the wood decayers reached 100% for Trichoderma harzianum KUC1459. The antibiotics produced by Trichoderma dorotheae KUC5027, a recently reported species of Trichoderma, revealed strong antagonistic effects against sap-stainers. Trichoderma gamsii KUC1747 effectively inhibited the growth of all wood-damaging fungi in dual culture tests. The exo-chitinases of Trichoderma longibrachiatum KUC1540, Trichoderma aureoviride KUC1335, and T. harzianum KUC1459 showed significantly high activity.

scholarly journals Potensi Trichoderma spp. sebagai Agens Pengendali Fusarium spp. Penyebab Penyakit Layu pada Tanaman Stroberi

2016 ◽  
Vol 25 (4) ◽  
pp. 331 ◽  
Author(s):  
Mutia Erti Dwiastuti ◽  
Melisa N Fajri ◽  
Yunimar Yunimar
Keyword(s):  
Fragaria X Ananassa ◽  
Dual Culture ◽  
Fusarium Spp ◽  
Trichoderma Spp ◽  
Trichoderma Sp ◽  
Fusarium Sp

<p>Layu yang disebabkan oleh Fusarium spp. merupakan salah satu penyakit penting tanaman stroberi (Fragaria x ananassa<br />Dutch.) di daerah subtropika, yang dapat menggagalkan panen. Penelitian bertujuan untuk mempelajari potensi Trichoderma spp.<br />dalam mengendalikan Fusarium spp. Isolat Trichoderma spp. diisolasi dari rizosfer tanaman stroberi dan Fusarium spp. diisolasi<br />dari tanaman stroberi yang mengalami layu fusarium. Isolat cendawan dimurnikan, dikarakterisasi, dan dibandingkan dengan isolat<br />cendawan acuan. Uji antagonis dilakukan secara in vitro dan in vivo. Uji in vitro dilakukan dengan metode dual culture dan slide<br />culture. Uji in vivo dilakukan di rumah kasa menggunakan dua varietas stroberi, yaitu Santung serta California. Hasil penelitian <br />in vitro memperoleh dua jenis isolat cendawan antagonis, yaitu Trichoderma sp.1 dan Trichoderma sp.2, dan dua jenis cendawan <br />patogen Fusarium, yaitu Fusarium sp.1 dan Fusarium sp.2. Isolat Trichoderma sp.1 memiliki kemampuan antagonisme lebih tinggi<br />dibandingkan dengan isolat Trichoderma sp.2. Isolat Trichoderma sp.1 mampu menghambat pertumbuhan Fusarium sp.1 dan<br />Fusarium sp.2 secara berturut- turut, yaitu 49,7% dan 49,6%. Isolat Trichoderma sp.2 mampu menghambat pertumbuhan Fusarium<br />sp.1 dan Fusarium sp.2 lebih rendah, yaitu sebesar 45,8% dan 43,4%. Mekanisme antagonis yang terjadi antara cendawan antagonis<br />dan patogen pada uji in vitro, yaitu pembelitan dan intervensi hifa. Hasil pada uji in vivo pada perlakuan Trichoderma sebelum<br />Fusarium menunjukkan keefektifan pengendalian paling baik (41,72%) dibanding perlakuan lain. Varietas Santung lebih tahan<br />terhadap serangan patogen dibandingkan varietas California. Implikasi dari hasil penelitian ini adalah, agens hayati Trichoderma<br />spp. lebih optimal digunakan sebagai pencegahan (preventif) tanpa menunggu tanaman terinfeksi penyakit layu fusarium.</p>

scholarly journals Mass screening of Trichoderma spp. for their antagonism against some plant pathogenic oomycetes fungi

2018 ◽  
Vol 10 (3) ◽  
pp. 813-817
Author(s):  
Erayya SL ◽  
Nandani Shukla ◽  
Kahkashan Arzoo ◽  
J. Kumar
Keyword(s):  
Mycelial Growth ◽  
Antagonistic Activity ◽  
Culture Technique ◽  
Potato Research ◽  
Dual Culture ◽  
Trichoderma Spp ◽  
Maximum Reduction ◽  
Maximum Inhibition ◽  
Th 1

In vitro efficacy of twenty five Trichoderma isolates (twenty were TCMS series viz., TCMS 2, 4, 5, 12, 14a, 14b, 15, 16, 24, 32, 34, 36, 43, 60, 62, 64, 65, 72, 85 and 93, and five Th series; Th 1, 3, 14, 19 and 32) were ascertained for their antagonistic activity against few major plant pathogenic oomycetes namely, Phytophthora infestans, P. parasitica and Pythium aphenidermatum using dual culture technique. P. infestans was isolated from infected potato leaves and Pythium aphenidermatum from infected brinjal. P. parasitica culture was collected from Central Potato Research Institute (CPRI), Simla. The present study was conducted at Biological Control Laboratory, Department of Plant Pathology, G.B. Pant University of Agriculture and Technology, Pantnagar. All the 25 Trichodrma isolates were found significantly effective against the test pathogens. TCMS-36 and TCMS-72 were found highly effective against P. aphinidermatum with 59.57 per cent inhibition of radial growth of the fungus. Maximum reduction in mycelial growth of P. infestans was recorded with isolate TCMS-64 (60.40%) followed by TCMS-65 (59.41%), TCMS-34 (58.42%), TCMS-24, TCMS-43 and TCMS-93 with 57.43 per cent inhibition. While, maximum inhibition of P. parasitica was recorded with TCMS-4 (92.75%) followed by TCMS-36 (92.23%), TCMS-2 (91.71%), TCMS-14a (91.17%) and TCMS-32 (90.67%). The selected potential isolates may be applied to sustainable and eco-friendly management of many major crop diseases caused by the oomycetes and other fungi.

scholarly journals PEMANFAATAN BIOFUNGISIDA BERBAHAN AKTIF Trichoderma spp. UNTUK PENGENDALIAN PENYAKIT BUSUK BUAH KAKAO

2016 ◽  
Vol 3 (1) ◽  
pp. 28
Author(s):  
Winda Nawfetrias ◽  
Eka Nurhangga ◽  
Sutardjo .
Keyword(s):  
Active Ingredient ◽  
Low Cost ◽  
Pathogenic Fungi ◽  
Culture Method ◽  
Dual Culture ◽  
Trichoderma Spp ◽  
Cocoa Production ◽  
Black Pod

Cocoa black pod rot is caused by pathogenic fungi, Phytophtora palmivora, which decrease the cocoa production up to 90%. The use of biological control agents, Trichoderma spp., is one of the promising P. palmivora controllers since it is low-cost, easily found and safe for the environment. The aims of this research were to understand the compatibility, antagonistic and effectiveness of biofungicide containing active ingredient of Trichoderma spp. against P. palmivora in vitro and to test the effective concentration of biofungicide containing active ingredient of T. asperellum to control P. palmivora in vitro and in vivo. T. asperellum, T. harzianum, and T. viride were grown together on PDA medium to test their compatibility. Antagonistic and effectiveness test of Trichoderma spp. against P. palmivora were tested using the in vitro dual culture method. The effectiveness of T. asperellum biofungicide was tested in vivo on cocoa pot. Compatibility test showed that all three species were compatible and the best effectiveness showed by the combination of T. asperellum and T. viride. The result also showed that T. asperellum biofungicide had an ability to inhibit P. palmivora.   Keywords: Trichoderma spp., effectivity, compatibility, antagonistic, biofungicide  ABSTRAKPenyakit busuk buah kakao disebabkan cendawan patogen Phytophtora palmivora, yang dapat menurunkan produksi kakao sampai 90%. Penggunaan agensia pengendali hayati (APH), Trichoderma spp., merupakan salah satu pengendalian P. palmivora yang menjanjikan karena murah, mudah didapat dan aman terhadap lingkungan. Penelitian ini bertujuan mengetahui kesesuaian, antagonistik, dan efektivitas biofungisida berbahan aktif Trichoderma spp. secara in vitro. Di samping itu juga bertujuan mengetahui konsentrasi efektif biofungisida berbahan aktif T. asperellum untuk mengendalikan P. palmivora secara in vitro dan in vivo. T. asperellum, T. harzianum, dan T. viride, ditumbuhkan bersama pada media PDA untuk mengetahui kesesuaian antarspesies. Antagonistik dan efektivitas Trichoderma spp. terhadap P. palmivora secara in vitro diuji menggunakan metode dual culture. Biofungisida berbahan aktif T. asperellum diuji efektivitasnya secara in vivo pada buah kakao. Hasil uji kesesuaian menunjukkan bahwa ketiga spesies yang diuji berkesesuaian dan efektifitas terbaik ditunjukkan pada kombinasi T. asperellum dan T. viride. Hasil penelitian juga menunjukkan bahwa biofungisida berbahan aktif T. asperellum dengan konsentrasi tertinggi terbukti dapat menghambat pertumbuhan P. palmivora.Kata kunci: Trichoderma spp., efektivitas, kesesuaian, antagonis, biofungisida

scholarly journals Identification of new Trichoderma strains with antagonistic activity against Botrytis cinerea

2013 ◽  
Vol 25 (2) ◽  
pp. 123-132 ◽  
Author(s):  
Aleksandra Bogumił ◽  
Lidia Sas Paszt ◽  
Anna Lisek ◽  
Paweł Trzciński ◽  
Anton Harbuzov
Keyword(s):  
Botrytis Cinerea ◽  
Carbon Sources ◽  
Grey Mould ◽  
Antagonistic Activity ◽  
Culture Technique ◽  
Dual Culture ◽  
Biochemical Tests ◽  
Trichoderma Spp ◽  
Indole 3 Acetic Acid

ABSTRACT The antagonistic activity of 52 isolates of Trichoderma spp. against Botrytis cinerea was tested in in vitro conditions using the dual culture technique. The results revealed that all of the Trichoderma isolates had the ability to inhibit the mycelial growth of grey mould. The percentage reduction in the growth of Botrytis cinerea after six days of incubation at 25ºC varied between 45-78%. The isolates Tr43 and Tr52 showed the highest antagonistic activity (Tr43 - 76%; Tr52 - 78%). Biochemical and molecular identification indicated that both isolates were T. atroviride. The isolates showed differences in the utilisation of 11 to 96 different carbon sources. Additional biochemical tests revealed the ability of Tr43 and Tr52 to produce siderophores, indole-3-acetic acid and chitinases. Neither of the isolates gave positive results regarding phosphate solubilisation on Pikovskaya’s medium.

scholarly journals First report of three species of Trichoderma isolated from the rhizosphere in Algeria and the high antagonistic effect of Trichoderma brevicompactum to control grey mould disease of tomato

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Massinissa Hammad ◽  
Thomas Guillemette ◽  
Meriem Alem ◽  
Franck Bastide ◽  
Meriem Louanchi
Keyword(s):  
Biological Control ◽  
Grey Mould ◽  
Antagonistic Activity ◽  
Antagonistic Effect ◽  
Culture Technique ◽  
Dual Culture ◽  
Soil Microbial Diversity ◽  
First Report ◽  
The North

Abstract Background Grey mould caused by Botrytis cinerea Pers. (teleomorph Botryotinia fuckeliana (de Bary) Whetzel) is one of the most destructive fungal diseases of Mediterranean crops. In Algeria, few studies have been made on the economic impact of this disease. Nevertheless, it is practically present in all tomato and strawberry greenhouses, as well as in prospected vineyards in the north and south of the country. The complexity of chemical control of this disease has led to search for Trichoderma strains that are effective in biological control. Results Fifteen isolates of Trichoderma spp. were obtained from vigorous and healthy plants (tomatoes, strawberries, and vines) rhizosphere, and from a commercial bio-compost (Bio-composte®), then identified as T. afroharzianum (four isolates), T. gamsii (four isolates), T. longibrachiatum (three isolates), T. atroviride (one isolate), T. brevicompactum (one isolate), T. breve (one isolate), and T. lixii (one isolate) on the basis of DNA sequence analysis of four genes (ITS, tef1, rpb2, and acl1). In vitro biocontrol tests revealed that four Algerian isolates of Trichoderma spp. (TAtC11, TGS7, TGS10, and TBS1) had a high antagonistic activity against B. cinerea, the mycelial growth has been reduced by 62 to 65% in dual-culture technique, by 62.31 to 64.49% in volatile compounds test, and a high inhibition of germling growth was recorded by TBS1 isolate with 90.68% in Culture filtrates test. Biocontrol tests carried out on tomato plants with T. brevicompactum (TBS1), T. atroviride (TAtC11), and T. lixii (TLiC8) against B. cinerea (BCT04) showed that TBS1 inoculation significantly reduced the incidence of disease by 64.43 and 51.35% in preventive and curative treatment, respectively. Conclusion The present study revealed the first report of T. brevicompactum, T. breve, and T. lixii in Algeria, and it also contributes to the promotion of the use of native strains of Trichoderma in biological control leading to a better preservation of soil microbial diversity.

scholarly journals THE SUPPRESSION OF TWO ENDOFIT FUNGUS AGAINST PATHOGEN IN GONDANG MANIS JAMAICAN APPLE

2021 ◽  
Vol 15 (1) ◽  
pp. 1-15
Author(s):  
Ambar susanti Ambar ◽  
Nur Afifah ◽  
Ruri Febrianti
Keyword(s):  
Endophytic Fungi ◽  
Pathogenic Fungi ◽  
Culture Method ◽  
Dual Culture ◽  
Resistance Level ◽  
Mechanism Of Inhibition ◽  
Randomized Design ◽  
Trichoderma Sp ◽  
Fusarium Sp

This study aims to determine the ability of two endophytic fungi in Gondang Manis jamaican apple to inhibit the development of indigenous pathogenic fungi on these plants. The isolates of Trichoderma sp and Metarhizium sp were obtained from the exploration of endophytic fungi on the tissue of the Gondang Manis jamaican apple plant, while Fusarium sp was the result of exploration on the rhizosphere soil of the plant. Tests were carried out in vitro with a dual culture method using a completely randomized design (CRD) with FT (Fusarium - Trichoderma) and FM (Fusarium - Metarhizium) treatments, each with 5 replications. Determination of the resistance level based on PIRG and Bell Rating. Analysis using ANOVA p (˂0.05) and LSD test (p˃ 0.05). The results showed that Trichoderma sp has a high inhibiting ability (PIRG = 70%; Bell Rating = 2) against Fusarium sp, while Metarhizium sp is considered low (PIRG = 20.5%; Bell rating = 4). This shows that Trichoderma sp. Isolate has a better ability than Metarhizium sp in inhibiting the development of Fusarium sp. The mechanism of inhibition of the pathogen Fusarium sp by Trichoderma sp is to seize nutrients from pathogens   Key word : Inhibition, Fusarium sp, Metarhizium sp, Trichoderma sp.

scholarly journals Bio-controller Effect of Four Native Strains of Trichoderma spp., on Phytophthora capsici in Manzano Chili (Capsicum pubescens) in Puebla-Mexico

2021 ◽  
Author(s):  
Ma. Ángeles Valencia de Ita ◽  
Jiménez Huerta Fátima ◽  
Conrado Parraguirre Lezama ◽  
Alfredo Báez Simón ◽  
Gerardo Landeta Cortés ◽  
...  
Keyword(s):  
Root Rot ◽  
Phytophthora Capsici ◽  
Severe Disease ◽  
Antagonistic Effect ◽  
Culture Technique ◽  
Dual Culture ◽  
Trichoderma Spp ◽  
Native Strains

Diversity of the different types of chilies in Mexico has been scarcely studied, and a large variety have been found to be, such as Manzano chili. Root rot caused by oomycete Phytophthora capsici is a severe disease that affects Manzano chili production in Mexico, detracted from its production and quality. The use of biological control agents such as Trichodermanative’s species, represents an efficient alternative to reduce losses and control the disease. For this reason, the objective of the present investigation was to evaluate the antagonistic effect in vitro and in vivo of four native strains of Trichoderma spp., on Phytophthora capsici in seedlings of Manzano chili from Puebla-Mexico was evaluated. Dual culture technique was used to determine the percentage of inhibition of radial growth (PICR) of the PC-A strain of P. capsici. Analysis of the percentage of germination was also carried out, as well as the incidence of root rot at 20 days after inoculation with the pathogen (dai) in the nursery. T. harzianum strain presented the highest PICR (42.86%) of antagonistic level in vitro and class I in the Bell scale, in addition, it obtained 88% germination in the nursery and 10% mortality at 20 dai, higher than the other native strains of Trichoderma. The bio-controlling effect of strains of Trichoderma spp., offers an effective alternative for root necrosis caused by P. capsici in the cultivation of Manzano chili in Puebla-Mexico.

scholarly journals UJI KESESUAIAN EMPAT ISOLAT TRICHODERMA SPP. DAN DAYA HAMBAT IN VITRO TERHADAP BEBERAPA PATOGEN TANAMAN

2013 ◽  
Vol 13 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Loekas Soesanto ◽  
Endang Mugiastuti ◽  
Ruth Feti Rahayuniati ◽  
Ratna Stia Dewi
Keyword(s):  
Pathogenic Bacteria ◽  
Plant Pathogens ◽  
Pathogenic Fungi ◽  
Dry Weight ◽  
Inhibition Zone ◽  
Fungal Species ◽  
Trichoderma Spp ◽  
Nematode Mortality ◽  
Inhibition Ability

Compatibility test of four Trichoderma spp. Isolates and in vitro inhibition ability on several plant pathogens. In vitro descriptive compatibility research was carried out to know the compatibility among Trichoderma spp. isolates and their inhibition ability toward several plant pathogens. Four Trichoderma spp. isolates used were ginger, shallot, banana, and pineapple isolates; while the pathogens used were pathogenic fungi (Fusarium, Colletotrichum, Phytophthora, and Sclerotium), bacteria (Ralstonia), and nematode (Meloidogyne dan Globodera). Observation was done toward inhibition zone between Trichoderma spp. isolates, colony radial growth, mycelial dry weight, and nematode mortality. Result of the research indicated that the four Trichoderma spp. isolates were compatible and no growth inhibition was observed. The inhibition ability of all Trichoderma spp. isolates varied and the ginger isolate had the highest inhibition ability and mortality on all fungal species and the nematodes, while on the pathogenic bacteria there was no inhibition.

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