scholarly journals (2647–2651) Proposals to conserve the names Venturia acerina against Cladosporium humile; Venturia borealis against Torula maculicola; Venturia carpophila against Fusicladium amygdali and Cladosporium americanum; Sphaerella inaequalis (Venturia inaequalis) against Spilocaea pomi, Fumago mali, Actinonema crataegi, Cladosporium dendriticum, Asteroma mali, and Scolicotrichum venosum; and Venturia pyrina against Helminthosporium pyrorum, Fusicladium virescens, F. fuscescens, Cladosporium polymorphum and Passalora pomi (Ascomycota: Dothideomycetes)

Taxon ◽  
2018 ◽  
Vol 67 (6) ◽  
pp. 1209-1211 ◽  
Author(s):  
Amy Rossman ◽  
Lisa Castlebury ◽  
Begoña Aguirre-Hudson ◽  
Reinhard Berndt ◽  
Jacqueline Edwards
Keyword(s):  
Venturia Inaequalis ◽  
Venturia Pyrina

scholarly journals Concept of integral protection of apple and pear

2015 ◽  
Vol 60 (4) ◽  
pp. 381-393 ◽  
Author(s):  
Milovan Velickovic ◽  
Jelena Golijan
Keyword(s):  
Venturia Inaequalis ◽  
Cydia Pomonella ◽  
Panonychus Ulmi ◽  
Special Consideration ◽  
Podosphaera Leucotricha ◽  
Monilinia Fructigena ◽  
Cacopsylla Pyri ◽  
Environment And Health ◽  
Chondrostereum Purpureum ◽  
Venturia Pyrina

This paper implies current and economically significant diseases and pests of an apple and pear, i.e. problems of integral protection of these species of fruits in our country. Measures for their prevention are recommended regarding an adequate period. Special consideration is given to the diseases such as Venturia pyrina, Venturia inaequalis, Monilinia fructigena, Podosphaera leucotricha and Chondrostereum purpureum, as well as to pests such as Cydia pomonella, Cacopsylla pyri, Cacopsilla pyrisuga, Eryiophidae, Panonychus ulmi and Aphididae. The demand and importance of mass implementation of the concept of integral production in terms of obtaining biologically more valuable and ecologically safer fruits, i.e. preservation of the environment and health have been implied.

Constituents from Morus root bark against Venturia inaequalis – the causal agent of apple scab

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
JM Rollinger ◽  
R Spitaler ◽  
M Menz ◽  
P Schneider ◽  
EP Ellmerer ◽  
...  
Keyword(s):  
Venturia Inaequalis ◽  
Apple Scab ◽  
Causal Agent ◽  
Root Bark

ПРИМЕНЕНИЕ SSR МАРКЕРОВ ДЛЯ ИЗУЧЕНИЯ ГЕНЕТИЧЕСКОГО РАЗНООБРАЗИЯ Venturia inaequalis НА СЕВЕРНОМ КАВКАЗЕ В АГРОФИТОЦЕНОЗАХ РАЗНОГО ТИПА.

2018 ◽  
Vol 53 (1) ◽  
pp. 170-178
Author(s):  
И.И. СУПРУН ◽  
◽  
А.И. НАСОНОВ ◽  
С.В. ТОКМАКОВ ◽  
О.Н. БАРСУКОВА ◽  
...  
Keyword(s):  
Venturia Inaequalis

Working collection formation of apple-tree (Malus domestica Mill.) gene pool for priority breeding trends

2019 ◽  
pp. 101-108
Author(s):  
T.I. Krasulia
Keyword(s):  
Climatic Factors ◽  
Venturia Inaequalis ◽  
High Water ◽  
Laboratory Method ◽  
Apple Trees ◽  
Growing Period ◽  
Breeding Efficiency ◽  
Abiotic And Biotic Factors ◽  
Distinguished Varieties ◽  
Spring Frosts

Aim. To define the priority trends of apple breeding in the southern steppe of Ukraine and to identify varieties – sources of high valuable-for-breeding indices for building up a working collection. Results and Discussion. Spring frosts and wet weather in May-June contributing to development of the scab pathogen (Venturia inaequalis), high temperature and water deficit in the 2nd half of the growing period, when fruits grow and ripen, are the major stress weather/climatic factors for apple trees in the southern steppe of Ukraine. Therefore, the priority in breeding is given to developing varieties that would be resistant to several unfavorable factors. At the same time, commercial use of new varieties is possible provided high commercial quality indicators of fruits. High resistance of buds to spring frosts was observed in varieties Vechirnia Zoria, Moldavskoye Krasnoye, and Prima. Oligogenic varieties (genes Vm and Vf), including Harant, Skifske Zoloto, and Liberty, showed no signs of scab development. Varieties with polygenic resistance to this disease were identified; they included Vechirnia Zoria, Ornament, Carola. Drought-tolerant varieties with high water-holding capacity of leaves and their turgor restoration after wilting, including Carola, Florina, and Prima, were selected by a laboratory method. Assessment of drought tolerance in the field made it possible to enrich this group with numerous varieties. Varieties giving fruits with high commercial qualities on insufficient water availability, such as Vechirnia Zoria, Harant, Moldavskoye Krasnoye, Ornament and others, were distinguished. Varieties combining resistance to several unfavorable abiotic and biotic factors with high marketability traits of fruits were singled out. Among them. Harant, Delicious Spur, Liberty, and Prima should be mentioned. Conclusions. The development of varieties with complex tolerance to spring frosts, drought, scab pathogen and high qualities of fruits is the priority trend in the breeding of apple trees in the southern steppe of Ukraine. Varieties - sources of individual valuable traits and their various combinations were identified. Varieties Vechirnia Zoria, Moldavskoye Krasnoye, Ornament, and Golden Resistant combine the maximum number of valuable-for-breeding features. It is varieties-sources of several traits that should make up a working collection of apple trees to increase the breeding efficiency.

Use of sulfur nanoparticles as a green pesticide on Fusarium solani and Venturia inaequalis phytopathogens

RSC Advances ◽  
2013 ◽  
Vol 3 (26) ◽  
pp. 10471 ◽  
Author(s):  
K. Jagajjanani Rao ◽  
Santanu Paria
Keyword(s):  
Fusarium Solani ◽  
Venturia Inaequalis ◽  
Sulfur Nanoparticles

scholarly journals Apple Autotetraploids with Enhanced Resistance to Apple Scab (Venturia inaequalis) Due to Genome Duplication-Phenotypic and Genetic Evaluation

2021 ◽  
Vol 22 (2) ◽  
pp. 527
Author(s):  
Małgorzata Podwyszyńska ◽  
Monika Markiewicz ◽  
Agata Broniarek-Niemiec ◽  
Bożena Matysiak ◽  
Agnieszka Marasek-Ciolakowska
Keyword(s):  
Venturia Inaequalis ◽  
Leaf Shape ◽  
Apple Scab ◽  
Early Period ◽  
Physiological Parameters ◽  
Aflp Analysis ◽  
Poor Growth ◽  
Enhanced Resistance ◽  
Apple Cultivars ◽  
Old Trees

Among the fungal diseases of apple trees, serious yield losses are due to an apple scab caused by Venturia inaequalis. Protection against this disease is based mainly on chemical treatments, which are currently very limited. Therefore, it is extremely important to introduce cultivars with reduced susceptibility to this pathogen. One of the important sources of variability for breeding is the process of polyploidization. Newly obtained polyploids may acquire new features, including increased resistance to diseases. In our earlier studies, numerous tetraploids have been obtained for several apple cultivars with ‘Free Redstar’ tetraploids manifesting enhanced resistance to apple scab. In the present study, tetraploids of ‘Free Redstar’ were assessed in terms of phenotype and genotype with particular emphasis on the genetic background of their increased resistance to apple scab. Compared to diploid plants, tetraploids (own-rooted plants) were characterized with poor growth, especially during first growing season. They had considerably shorter shoots, fewer branches, smaller stem diameter, and reshaped leaves. In contrast to own-rooted plants, in M9-grafted three-year old trees, no significant differences between diplo- and tetraploids were observed, either in morphological or physiological parameters, with the exceptions of the increased leaf thickness and chlorophyll content recorded in tetraploids. Significant differences between sibling tetraploid clones were recorded, particularly in leaf shape and some physiological parameters. The amplified fragment length polymorphism (AFLP) analysis confirmed genetic polymorphism of tetraploid clones. Methylation-sensitive amplification polymorphism (MSAP) analysis showed that the level of DNA methylation was twice as high in young tetraploid plants as in a diploid donor tree, which may explain the weaker vigour of neotetraploids in the early period of their growth in the juvenile phase. Molecular analysis showed that ‘Free Redstar’ cultivar and their tetraploids bear six Rvi genes (Rvi5, Rvi6, Rvi8, Rvi11, Rvi14 and Rvi17). Transcriptome analysis confirmed enhanced resistance to apple scab of ‘Free Redstar’ tetraploids since the expression levels of genes related to resistance were strongly enhanced in tetraploids compared to their diploid counterparts.

Estimating the dynamics of airborne ascospores of Venturia inaequalis

EPPO Bulletin ◽  
2000 ◽  
Vol 30 (1) ◽  
pp. 137-142 ◽  
Author(s):  
S. Giosuè ◽  
V. Rossi ◽  
I. Ponti ◽  
R. Bugiani
Keyword(s):  
Venturia Inaequalis

scholarly journals Photo Initiated Chemical Vapour Deposition To Increase Polymer Hydrophobicity

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ariane Bérard ◽  
Gregory S. Patience ◽  
Gérald Chouinard ◽  
Jason R. Tavares
Keyword(s):  
Contact Angle ◽  
Chemical Vapour Deposition ◽  
High Density Polyethylene ◽  
Vapour Deposition ◽  
Venturia Inaequalis ◽  
Chemical Vapour ◽  
Superhydrophobic Coating ◽  
Water Ingress ◽  
New Challenges ◽  
Lower Contact

Abstract Apple growers face new challenges to produce organic apples and now many cover orchards with high-density polyethylene (HDPE) nets to exclude insects, rather than spraying insecticides. However, rainwater- associated wetness favours the development of apple scabs, Venturia inaequalis, whose lesions accumulate on the leaves and fruit causing unsightly spots. Treating the nets with a superhydrophobic coating should reduce the amount of water that passes through the net. Here we treat HDPE and polyethylene terephthalate using photo-initiated chemical vapour deposition (PICVD). We placed polymer samples in a quartz tube and passed a mixture of H2 and CO through it while a UVC lamp (254 nm) illuminated the surface. After the treatment, the contact angle between water droplets and the surface increased by an average of 20°. The contact angle of samples placed 70 cm from the entrance of the tube was higher than those at 45 cm and 20 cm. The PICVD-treated HDPE achieved a contact angle of 124°. Nets spray coated with a solvent-based commercial product achieved 180° but water ingress was, surprisingly, higher than that for nets with a lower contact angle.

Induced Resistance to Apple Scab: Microscopic Studies on the Infection Cycle of Venturia inaequalis (Cke.) Wint.

1998 ◽  
Vol 146 (8-9) ◽  
pp. 399-405 ◽  
Author(s):  
F. Ortega ◽  
U. Steiner ◽  
H.-W. Dehne
Keyword(s):  
Induced Resistance ◽  
Venturia Inaequalis ◽  
Apple Scab ◽  
Infection Cycle ◽  
Microscopic Studies
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