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Vincent V. Michel, Nicole Debrunner and Xavier Simonnet

The intensification of the st. john’s wort ( Hypericum perforatum ) production in Switzerland at the end of the 1990s was accompanied by the appearance of anthracnose caused by Colletotrichum gloeosporioides (teleomorph Glomerella cingulata

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Jayasankar Subramanian, Richard E Litz and Raymond J. Schnell

Anthracnose, caused by Colletotrichum gloeosporioides, is the most serious production and postharvest problem of mango. Most mango cultivars are highly susceptible to this disease. Embryogenic nucellar cultures of two cultivars, `Hindi' and `Carabao', were recurrently selected with either the purified phytotoxin or the crude culture filtrate produced by the fungus. Mycelium growth was suppressed in dual cultures involving the recurrently selected lines. Enhanced extracellular production of proteins was observed in the embryogenic cultures and in regenerants, including a newly expressed acidic chitinase isozyme (`Hindi') and greater expression of two other chitinase isozymes (`Hindi' and `Carabao'). Activity of α-1,3-glucanase was also substantially increased in the recurrently selected lines. Resistant lines were characterized using RAPDs on the basis of polymorphisms generated by eight different primers. In most cases, the differences involved the absence of RAPD markers in resistant lines.

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Cheryl R. Boyer, Janet C. Cole and Mark E. Payton

). Wintercreeper euonymus is an integral part of the nursery inventory because of the cultivars available and popularity with consumers. Wintercreeper euonymus is susceptible to Colletotrichum gloeosporioides during production and in the landscape, resulting in

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Ibrahim I. Tahir, Eva Johansson and Marie E. Olsson

distribution organizations. Infections by Pezicula malicorticis (bull's eye rot), Penicillium expansum (blue mould), and Colletotrichum gloeosporioides (bitter rot) are the main causes of decay during apple storage in Sweden ( Tahir, 2006 ). Because pre

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Melinda A. Miller-Butler, Barbara J. Smith, Brian R. Kreiser and Eugene K. Blythe

. 2018 FaRCg1 : A quantitative trait locus conferring resistance to Colletotrichum crown rot caused by Colletotrichum gloeosporioides in octoploid strawberry Theor. Appl. 131 2167 2177 Antanaviciute, L. Surbanovski, N. Harrison, N. McLeary, K

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Barbara J. Smith

present in the United States for some time under the name of Gloeosporium spp. ( Maas, 1984 ). Colletotrichum gloeosporioides causes anthracnose crown rot, petiole lesions, and leaf spots indistinguishable from those caused by C. fragariae . In a

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Douglas A. Phillips, Philip F. Harmon, James W. Olmstead, Natalia A. Peres and Patricio R. Munoz

. Weir, B.S. 2012 Colletotrichum —Current status and future directions Stud. Mycol. 73 181 213 Dodd, J.C. Estrada, A.B. Matcham, J. Jeffries, P. Jeger, M.J. 1991 The effect of climatic factors on Colletotrichum gloeosporioides , causal agent of mango

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Stanley Freeman

unique species from the genus Phytopathology 93 579 587 Alahakoon, P.W. Brown, A.E. Sreenivasaprasad, S. 1994 Cross-infection potential of genetic groups of Colletotrichum gloeosporioides on tropical

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K.S. Lewers, W.W. Turechek, S.C. Hokanson, J.L. Maas, J.F. Hancock, S. Serçe and B.J. Smith

fungal species Colletotrichum fragariae , Colletotrichum gloeosporioides (teleomorph Glomerella cingulata ) ( Smith and Black, 1990 ), and Colletotrichum acutatum (teleomorph Glomerella acutata ). Colletotrichum fragariae causes crown and fruit

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Stephanie S. Ningen, Janet C. Cole and Kenneth E. Conway

Effect of night temperatures on the severity of Colletotrichum gloeosporioides (Penz.) Penz. & Sacc. on Euonymus fortunei (Turcz.) Hand.-Mazz. rooted cuttings of `Emerald Gaiety', `Canadale Gold', and `Emerald 'n Gold' was investigated. Uniform cuttings were exposed to day temperatures of 35.3 °C and night temperatures of 19.3 °C or 28.6 °C in growth chambers. Plants exposed to a 28.6 °C night temperature had higher disease ratings than those exposed to a 19.3 °C night temperature. `Emerald Gaiety' was damaged least by C. gloeosporioides compared to `Canadale Gold' and `Emerald 'n Gold'. Disease ratings on all cultivars increased linearly over the 6-week experimental period.