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Generic Hyper-Diversity in Stachybotriaceae
Persoonia 36, 2016: 156–246 www.ingentaconnect.com/content/nhn/pimj RESEARCH ARTICLE http://dx.doi.org/10.3767/003158516X691582 Generic hyper-diversity in Stachybotriaceae L. Lombard1, J. Houbraken1, C. Decock2, R.A. Samson1, M. Meijer1, M. Réblová3, J.Z. Groenewald1, P.W. Crous1,4,5,6 Key words Abstract The family Stachybotriaceae was recently introduced to include the genera Myrothecium, Peethambara and Stachybotrys. Members of this family include important plant and human pathogens, as well as several spe- biodegraders cies used in industrial and commercial applications as biodegraders and biocontrol agents. However, the generic generic concept boundaries in Stachybotriaceae are still poorly defined, as type material and sequence data are not readily avail- human and plant pathogens able for taxonomic studies. To address this issue, we performed multi-locus phylogenetic analyses using partial indoor mycobiota gene sequences of the 28S large subunit (LSU), the internal transcribed spacer regions and intervening 5.8S multi-gene phylogeny nrRNA (ITS), the RNA polymerase II second largest subunit (rpb2), calmodulin (cmdA), translation elongation species concept factor 1-alpha (tef1) and β-tubulin (tub2) for all available type and authentic strains. Supported by morphological taxonomy characters these data resolved 33 genera in the Stachybotriaceae. These included the nine already established genera Albosynnema, Alfaria, Didymostilbe, Myrothecium, Parasarcopodium, Peethambara, Septomyrothecium, Stachybotrys and Xepicula. At the same time the generic names Melanopsamma, Memnoniella and Virgatospora were resurrected. Phylogenetic inference further showed that both the genera Myrothecium and Stachybotrys are polyphyletic resulting in the introduction of 13 new genera with myrothecium-like morphology and eight new genera with stachybotrys-like morphology. -
World Mycotoxin Journal, February 2009; 2 (1): 35-43 Publisherb S E S
Wageningen Academic World Mycotoxin Journal, February 2009; 2 (1): 35-43 Publisherb s e s Macrocyclic trichothecene production and sporulation by a biological control strain of Myrothecium verrucaria is regulated by cultural conditions M.A. Weaver, R.E. Hoagland, C.D. Boyette and R.M. Zablotowicz United States Department of Agriculture, Agricultural Research Service, Southern Weed Science Research Unit. Stoneville MS 38776, USA; [email protected] Received: 15 February 2008 / Accepted: 16 December 2008 © 2009 Wageningen Academic Publishers Abstract Myrothecium verrucaria is a pathogen of several invasive weed species, including kudzu, and is currently being evaluated for use as a bioherbicide. However, the fungus also produces macrocyclic trichothecene mycotoxins. The safety of this biological control agent during production and handling would be improved if an inoculum could be produced without concomitant accumulation of macrocyclic trichothecenes. Sporulation and trichothecene production by M. verrucaria was evaluated on standard potato dextrose agar (PDA) and a series of complex and defined media. Sporulation on PDA and on agar media with nitrogen as ammonium nitrate or potassium nitrate was more than ten-fold greater then sporulation on the medium with ammonium sulphate as the nitrogen source. Accumulation of macrocyclic trichothecenes was strongly affected by the media composition, with higher levels often associated with higher carbon content in the media. Overall, incubation in continuous darkness resulted in higher macrocyclic trichothecene concentrations. Results support the hypothesis that accumulation of macrocyclic trichothecenes by this fungus can be altered by manipulating carbon and nitrogen sources. Furthermore, the biosynthesis of these mycotoxins may be independent of sporulation, demonstrating that the bioherbicide can be readily produced on solid substrates while simultaneously yielding conidia that are less threatening to worker safety. -
The Holomorph of Parasarcopodium (Stachybotryaceae), Introducing P
Phytotaxa 266 (4): 250–260 ISSN 1179-3155 (print edition) http://www.mapress.com/j/pt/ PHYTOTAXA Copyright © 2016 Magnolia Press Article ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.266.4.2 The holomorph of Parasarcopodium (Stachybotryaceae), introducing P. pandanicola sp. nov. on Pandanus sp. SAOWALUCK TIBPROMMA1,2,3,4,5, SARANYAPHAT BOONMEE2, NALIN N. WIJAYAWARDENE2,3,5, SAJEEWA S.N. MAHARACHCHIKUMBURA6, ERIC H. C. McKENZIE7, ALI H. BAHKALI8, E.B. GARETH JONES8, KEVIN D. HYDE1,2,3,4,5,8 & ITTHAYAKORN PROMPUTTHA9,* 1Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kun- ming 650201, Yunnan, People’s Republic of China 2Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand 3School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand 4World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, P. R. China 5Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand 6Department of Crop Sciences, College of Agricultural and Marine Sciences Sultan Qaboos University, P.O. Box 34, AlKhoud 123, Oman 7Manaaki Whenua Landcare Research, Private Bag 92170, Auckland, New Zealand 8Botany and Microbiology Department, College of Science, King Saud University, Riyadh, KSA 11442, Saudi Arabia 9Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand *Corresponding author: e-mail: [email protected] Abstract Collections of microfungi on Pandanus species (Pandanaceae) in Krabi, Thailand resulted in the discovery of a new species in the genus Parasarcopodium, producing both its sexual and asexual morphs. -
(=Myrothecium) Roridum (Tode) L. Lombard & Crous Against the Squash
Journal of Plant Protection Research ISSN 1427-4345 ORIGINAL ARTICLE Pathogenicity of endogenous isolate of Paramyrothecium (=Myrothecium) roridum (Tode) L. Lombard & Crous against the squash beetle Epilachna chrysomelina (F.) Feyroz Ramadan Hassan1*, Nacheervan Majeed Ghaffar2, Lazgeen Haji Assaf3, Samir Khalaf Abdullah4 1 Department of Plant Protection, College of Agricultural Engineering Sciences, University of Duhok, Kurdistan Region, Duhok, Iraq 2 Duhok Research Center, College of Veterinary Medicine, Duhok University, Kurdistan Region, Duhok, Iraq 3 Plant Protection, General Directorate of Agriculture-Duhok, Kurdistan Region, Duhok, Iraq 4 Department of Medical Laboratory Techniques, Al-Noor University College, Nineva, Iraq Vol. 61, No. 1: 110–116, 2021 Abstract DOI: 10.24425/jppr.2021.136271 The squash beetle Epilachna chrysomelina (F.) is an important insect pest which causes se- vere damage to cucurbit plants in Iraq. The aims of this study were to isolate and character- Received: September 14, 2020 ize an endogenous isolate of Myrothecium-like species from cucurbit plants and from soil Accepted: December 8, 2020 in order to evaluate its pathogenicity to squash beetle. Paramyrothecium roridum (Tode) L. Lombard & Crous was isolated, its phenotypic characteristics were identified and ITS *Corresponding address: rDNA sequence analysis was done. The pathogenicity ofP. roridum strain (MT019839) was [email protected] evaluated at a concentration of 107 conidia · ml–1) water against larvae and adults of E. chry somelina under laboratory conditions. The results revealed the pathogenicity of the isolate to larvae with variations between larvae instar responses. The highest mortality percentage was reported when the adults were placed in treated litter and it differed significantly from adults treated directly with the pathogen. -
First Report of Albifimbria Verrucaria and Deconica Coprophila (Syn: Psylocybe Coprophila) from Field Soil in Korea
The Korean Journal of Mycology www.kjmycology.or.kr RESEARCH ARTICLE First Report of Albifimbria verrucaria and Deconica coprophila (Syn: Psylocybe coprophila) from Field Soil in Korea 1 1 1 1 1 Sun Kumar Gurung , Mahesh Adhikari , Sang Woo Kim , Hyun Goo Lee , Ju Han Jun 1 2 1,* Byeong Heon Gwon , Hyang Burm Lee , and Youn Su Lee 1 Division of Biological Resource Sciences, Kangwon National University, Chuncheon 24341, Korea 2 Divison of Food Technology, Biotechnology and Agrochemistry, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Korea *Corresponding author: [email protected] ABSTRACT During a survey of fungal diversity in Korea, two fungal strains, KNU17-1 and KNU17-199, were isolated from paddy field soil in Yangpyeong and Sancheong, respectively, in Korea. These fungal isolates were analyzed based on their morphological characteristics and the molecular phylogenetic analysis of the internal transcribed spacer (ITS) rDNA sequences. On the basis of their morphology and phylogeny, KNU17-1 and KNU17-199 isolates were identified as Albifimbria verrucaria and Deconica coprophila, respectively. To the best of our knowledge, A. verrucaria and D. coprophila have not yet been reported in Korea. Thus, this is the first report of these species in Korea. Keywords: Albifimbria verrucaria, Deconica coprophila, Morphology OPEN ACCESS INTRODUCTION pISSN : 0253-651X The genus Albifimbria L. Lombard & Crous 2016 belongs to the family Stachybotryaceae of Ascomycotic eISSN : 2383-5249 fungi. These fungi are characterized by verrucose setae and conidia bearing a funnel-shaped mucoidal Kor. J. Mycol. 2019 September, 47(3): 209-18 https://doi.org/10.4489/KJM.20190025 appendage [1]. -
The Phylogeny of Plant and Animal Pathogens in the Ascomycota
Physiological and Molecular Plant Pathology (2001) 59, 165±187 doi:10.1006/pmpp.2001.0355, available online at http://www.idealibrary.com on MINI-REVIEW The phylogeny of plant and animal pathogens in the Ascomycota MARY L. BERBEE* Department of Botany, University of British Columbia, 6270 University Blvd, Vancouver, BC V6T 1Z4, Canada (Accepted for publication August 2001) What makes a fungus pathogenic? In this review, phylogenetic inference is used to speculate on the evolution of plant and animal pathogens in the fungal Phylum Ascomycota. A phylogeny is presented using 297 18S ribosomal DNA sequences from GenBank and it is shown that most known plant pathogens are concentrated in four classes in the Ascomycota. Animal pathogens are also concentrated, but in two ascomycete classes that contain few, if any, plant pathogens. Rather than appearing as a constant character of a class, the ability to cause disease in plants and animals was gained and lost repeatedly. The genes that code for some traits involved in pathogenicity or virulence have been cloned and characterized, and so the evolutionary relationships of a few of the genes for enzymes and toxins known to play roles in diseases were explored. In general, these genes are too narrowly distributed and too recent in origin to explain the broad patterns of origin of pathogens. Co-evolution could potentially be part of an explanation for phylogenetic patterns of pathogenesis. Robust phylogenies not only of the fungi, but also of host plants and animals are becoming available, allowing for critical analysis of the nature of co-evolutionary warfare. Host animals, particularly human hosts have had little obvious eect on fungal evolution and most cases of fungal disease in humans appear to represent an evolutionary dead end for the fungus. -
1 Research Article 1 2 Fungi 3 Authors: 4 5 6 7 8 9 10
1 Research Article 2 The architecture of metabolism maximizes biosynthetic diversity in the largest class of 3 fungi 4 Authors: 5 Emile Gluck-Thaler, Department of Plant Pathology, The Ohio State University Columbus, OH, USA 6 Sajeet Haridas, US Department of Energy Joint Genome Institute, Lawrence Berkeley National 7 Laboratory, Berkeley, CA, USA 8 Manfred Binder, TechBase, R-Tech GmbH, Regensburg, Germany 9 Igor V. Grigoriev, US Department of Energy Joint Genome Institute, Lawrence Berkeley National 10 Laboratory, Berkeley, CA, USA, and Department of Plant and Microbial Biology, University of 11 California, Berkeley, CA 12 Pedro W. Crous, Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The 13 Netherlands 14 Joseph W. Spatafora, Department of Botany and Plant Pathology, Oregon State University, OR, USA 15 Kathryn Bushley, Department of Plant and Microbial Biology, University of Minnesota, MN, USA 16 Jason C. Slot, Department of Plant Pathology, The Ohio State University Columbus, OH, USA 17 corresponding author: [email protected] 18 1 19 Abstract: 20 Background - Ecological diversity in fungi is largely defined by metabolic traits, including the 21 ability to produce secondary or "specialized" metabolites (SMs) that mediate interactions with 22 other organisms. Fungal SM pathways are frequently encoded in biosynthetic gene clusters 23 (BGCs), which facilitate the identification and characterization of metabolic pathways. Variation 24 in BGC composition reflects the diversity of their SM products. Recent studies have documented 25 surprising diversity of BGC repertoires among isolates of the same fungal species, yet little is 26 known about how this population-level variation is inherited across macroevolutionary 27 timescales. -
Diversity of Expression Types of Ht Genes Conferring Resistance in Maize to Exserohilum Turcicum
fpls-11-607850 December 13, 2020 Time: 10:58 # 1 ORIGINAL RESEARCH published: 17 December 2020 doi: 10.3389/fpls.2020.607850 Diversity of Expression Types of Ht Genes Conferring Resistance in Maize to Exserohilum turcicum Barbara Ludwig Navarro1*, Hendrik Hanekamp2, Birger Koopmann1 and Andreas von Tiedemann1 1 Division of Plant Pathology and Crop Protection, Department of Crop Sciences, Georg-August-Universität Göttingen, Göttingen, Germany, 2 Plant Protection Office, Chamber of Agriculture Lower Saxony, Hannover, Germany Northern corn leaf blight (NCLB) is an important leaf disease in maize (Zea mays) worldwide and is spreading into new areas with expanding maize cultivation, like Germany. Exserohilum turcicum, causal agent of NCLB, infects and colonizes leaf tissue and induces elongated necrotic lesions. Disease control is based on fungicide application and resistant cultivars displaying monogenic resistance. Symptom expression and resistance mechanisms differ in plants carrying different resistance genes. Therefore, histological studies and DNA quantification were performed to Edited by: Dilantha Fernando, compare the pathogenesis of E. turcicum races in maize lines exhibiting compatible or University of Manitoba, Canada incompatible interactions. Maize plants from the differential line B37 with and without Reviewed by: resistance genes Ht1, Ht2, Ht3, and Htn1 were inoculated with either incompatible Carl Alan Bradley, or compatible races (race 0, race 1 and race 23N) of E. turcicum. Leaf segments University of Kentucky, United States Sang-Wook Han, from healthy and inoculated plants were collected at five different stages of infection Chung-Ang University, South Korea and disease development from penetration (0–1 days post inoculation - dpi), until *Correspondence: full symptom expression (14–18 dpi). -
Received: 09 Th Nov-2013 Revised: 24 Th Nov-2013 Accepted: 25 Th
Received: 09th Nov-2013 Revised: 24th Nov-2013 Accepted: 25th Nov-2013 Review article TURCICUM LEAF BLIGHT OF MAIZE INCITED BY Exserohilum turcicum: A REVIEW T. Rajeshwar Reddy1, P. Narayan Reddy1, R. Ranga Reddy2 Department of Plant Pathology, College of Agriculture, Acharya N G Ranga Agricultural University, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, India. 2Principal Scientist & Head, Maize Research Station, ARI, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, India. INTRODUCTION Globally maize (Zea mays L.) is the first and most important cereal crop gown under diversity of environments unmatched by any other crop, as expansion of maize to new areas and environment still continues due to its range of plasticity. It is prone to as many as 112 diseases in different parts of the world, caused by fungi, bacteria, viruses and nematodes leading to extensive damage. In India about 61 diseases have been reported to affect the crop. These include seedling blights, stalk rots, foliar diseases, downy mildews and ear rots (Payaket al., 1973 and Payak and Sharma, 1985).Among the fungal diseases turcicum leaf blight caused by Exserohilum turcicum (Pass.). Leonard and Suggs. (Synonyms:Helminthosprium turcicum (Pass.) Leonard and Suggs) [Perfect stage: Setosphaeria turcica (Luttrell) Leonard and Suggs. (Synonym: Trichometasphaeria turcica (Luttrell)] is one the important foliar disease causing severe reduction in grain and fodder yield to the tune of 16 -98% (Kachapur and Hegde, 1988). The disease was first described by Passerini (1876) from Italy and by Butler (1907) from India. In India, this disease is prevalent in Andhra Pradesh, Karnataka, Bihar, Himachal Pradesh and Maharashtra. Turcicum leaf blight is potentially an important foliar disease in areas where the temperatures drop at night while the humidity is high. -
The Family Pleosporaceae: Intergeneric Relationships and Phylogenetic Perspectives Based on Sequence Analyses of Partial 28S Rdna
Mycologia, 98(4), 2006, pp. 571–583. # 2006 by The Mycological Society of America, Lawrence, KS 66044-8897 The family Pleosporaceae: intergeneric relationships and phylogenetic perspectives based on sequence analyses of partial 28S rDNA Rampai Kodsueb niothelia, which is probably polyphyletic. Anamorphic Department of Biology, Faculty of Science, Chiang Mai characters appear to be significant (especially in University, Chiang Mai, Thailand Cochliobolus) while ascospore morphologies, such as Vijaykrishna Dhanasekaran shape and color and substrate occurrence are poor Centre for Research in Fungal Diversity, Department of indicators of phylogenetic relationships among these Ecology & Biodiversity, The University of Hong Kong, loculoascomycetes. Pokfulam Road, Hong Kong Key words: anamorphs, ascospore morphology, Andre´ Aptroot Loculoascomycetes, phylogeny, Pleospora, polyphy- Centraalbureau voor Schimmelcultures, P.O. Box letic, ribosomal DNA 85167, 3508 AD Utrecht, The Netherlands Saisamorn Lumyong INTRODUCTION Department of Biology, Faculty of Science, Chiang Mai The largest family within the Pleosporales, Pleospor- University, Chiang Mai, Thailand aceae, comprises 17 genera and 111 species (Kirk et al Eric H.C. McKenzie 2001). Species are parasites or saprobes on wood and Landcare Research, Private Bag 92170, Auckland, dead herbaceous stems or leaves (Sivanesan 1984). New Zealand The classification in the Pleosporaceae has been Kevin D. Hyde based primarily on the Pleospora type of centrum Rajesh Jeewon1 development (Dong et al 1998) and asci that are Centre for Research in Fungal Diversity, Department of interspersed with pseudoparaphyses in the asco- Ecology & Biodiversity, The University of Hong Kong, stroma. These pseudoparaphyses originate above the Pokfulam Road, Hong Kong hymenial layer and grow downward among the asci to fuse at the base of the locule (Wehmeyer 1975). -
A First Record of Exserohilum Rostratum As a New Pathogen Causing Bean Blight in Egypt
atholog P y & nt a M l i P c f r o o b l i o a n l Journal of Plant Pathology & o r g u y o J ISSN: 2157-7471 Microbiology Research Article A First Record of Exserohilum rostratum as a New Pathogen Causing Bean Blight in Egypt Farag MF1*, Attia FM2 1Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt; 2Department of Plant Pathology, Faculty of Agriculture, Cairo University, Egypt ABSTRACT Seedling blight of bean (Phaseolus vulgaris L.) was recorded in bean fields at five different localities in Beni Sweif Governorate, Egypt. Symptoms appeared as green dark to purplish-brown spots, with brown margins. The affected plant leaves were collected for mycological analysis. Percentage of disease incidence were 30%, 25%, 22%, 15% and 35% in El-Wasta, Nasser, Beni Sweif, Sumosta and Beba counties respectively. Leaf samples were surface sterilized and cultured on potato dextrose agar. The growing fungi were identified on morphological as well as on molecular basis. Microscopic examination revealed that the isolated organisms have the same characteristics of Exserohilum rostratum (Drechsler) Leonard & Suggs. Among the 30 fungal isolates collected from the five bean plantations, a representative isolate was grown for DNA extraction, PCR and rDNA sequencing. Universal primers targeting ITS regions of the rDNA were used for PCR and sequencing. Results confirmed that the sequences of these fungi showed close relationship with E. rostratum with 99.6% - 100% similarity. The obtained sequences were deposited in the GenBank with accession numbers MT075801, MT071830, MT071831, MT071832, and MT071834. Pathogenicity tests confirmed that E. -
Phylogenetic Placement of Bahusandhika, Cancellidium and Pseudoepicoccum (Asexual Ascomycota)
Phytotaxa 176 (1): 068–080 ISSN 1179-3155 (print edition) www.mapress.com/phytotaxa/ Article PHYTOTAXA Copyright © 2014 Magnolia Press ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.176.1.9 Phylogenetic placement of Bahusandhika, Cancellidium and Pseudoepicoccum (asexual Ascomycota) PRATIBHA, J.1, PRABHUGAONKAR, A.1,2, HYDE, K.D.3,4 & BHAT, D.J.1 1 Department of Botany, Goa University, Goa 403206, India 2 Nurture Earth R&D Pvt Ltd, MIT Campus, Aurangabad-431028, India; email: [email protected] 3 Institute of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand 4 School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand Abstract Most hyphomycetous conidial fungi cannot be presently placed in a natural classification. They need recollecting and sequencing so that phylogenetic analysis can resolve their taxonomic affinities. The type species of the asexual genera, Bahusandhika, Cancellidium and Pseudoepicoccum were recollected, isolated in culture, and the ITS and LSU gene regions sequenced. The sequence data were analysed with reference data obtained through GenBank. The DNA sequence analyses shows that Bahusandhika indica has a close relationship with Berkleasmium in the order Pleosporales and Pseudoepicoccum cocos with Piedraia in Capnodiales; both are members of Dothideomycetes. Cancellidium applanatum forms a distinct lineage in the Sordariomycetes. Key words: anamorphic fungi, ITS, LSU, phylogeny Introduction Asexually reproducing ascomycetous fungi are ubiquitous in nature and worldwide in distribution, occurring from the tropics to the polar regions and from mountain tops to the deep oceans. These fungi colonize, multiply and survive in diverse habitats, such as water, soil, air, litter, dung, foam, live plants and animals, as saprobes, pathogens and mutualists.