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You searched for: Journal European journal of plant pathology Remove constraint Journal: European journal of plant pathology Publication Year 2013 Remove constraint Publication Year: 2013 Source 2013 v.135 no.1 Remove constraint Source: 2013 v.135 no.1
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1. A novel pathovar of Xanthomonas axonopodis causes gumming of Guggal (Commiphora wightii)

Author:
Samanta, Jatindra Nath; Mandal, Kunal; Maiti, Satyabrata
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 115-125
ISSN:
0929-1873
Subject:
Commiphora wightii; DNA topoisomerase (ATP-hydrolysing); DNA-directed RNA polymerase; Xanthomonas axonopodis; bacteria; branches; dual-energy X-ray absorptiometry; genes; nucleotide sequences; pathogenicity; pathogens; phylogeny; ribosomal DNA; trees
Abstract:
... Guggal (Commiphora wightii (Arnott) Bhandari comb. nov.) is a small tree which is tapped for medicinally important oleo–gum–resin. Naturally infected plant oozes oleo–gum–resin from its trunk and primary branches. However, in either case, the plant dies slowly after oozing. A bacterium was established to be responsible for these phenomena. Four isolates of this bacterium were characterised by bioc ...
DOI:
10.1007/s10658-012-0070-x

2. Changes induced by powdery mildew in the salicylic acid and polyamine contents and the antioxidant enzyme activities of wheat lines

Author:
Pál, Magda; Kovács, Viktória; Vida, Gyula; Szalai, Gabriella; Janda, Tibor
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 35-47
ISSN:
0929-1873
Subject:
Blumeria graminis; Triticum aestivum; antioxidant activity; biotic stress; defense mechanisms; enzyme activity; gel electrophoresis; greenhouses; isozymes; pathogens; peroxidase; powdery mildew; salicylic acid; spermidine; spermine; wheat
Abstract:
... Investigations were made on four wheat (Triticum aestivum L.) lines under greenhouse conditions, in order to reveal the role of stress-protective materials, namely salicylic acid, polyamines and antioxidant enzymes in the level of tolerance to powdery mildew infection caused by Blumeria graminis (DC.) Speer f.sp. tritici Ém. Marchal. The four lines showed different levels of tolerance, assessed on ...
DOI:
10.1007/s10658-012-0063-9

3. Effect of xylem fluid from susceptible and resistant grapevines on developmental biology of Xylella fastidiosa

Author:
Shi, Xiangyang; Bi, Jianlong; Morse, Joseph G.; Toscano, Nick C.; Cooksey, Donald A.
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 127-135
ISSN:
0929-1873
Subject:
DNA; Vitis vinifera; Xylella fastidiosa; biofilm; cultivars; fimbriae; gene expression regulation; genes; virulence; xylem
Abstract:
... Xylella fastidiosa causes Pierce’s disease (PD), a serious disease in grapevines, and grapevine cultivars vary in susceptibility to X. fastidiosa in the field. The mechanism(s) by which this occurs has not been clearly elucidated. To explore possible mechanisms, X. fastidiosa cells from a PD strain were grown in pure xylem fluid of PD-susceptible grapevines, Vitis vinifera and V. labrusca, versus ...
DOI:
10.1007/s10658-012-0071-9

4. Effects of rhizobacteria on parasitism by Meloidogyne ethiopica on grapevines

Author:
Aballay, Erwin; Ordenes, Paula; Mårtensson, Anna; Persson, Paula
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 137-145
ISSN:
0929-1873
Subject:
Achromobacter piechaudii; Bacillus megaterium; Bacillus mycoides; Delftia acidovorans; Meloidogyne; Pantoea agglomerans; Pseudomonas putida; Pseudomonas syringae pv. savastanoi; Serratia marcescens; Serratia plymuthica; Sphingobacterium spiritivorum; Vitis; canopy; hatching; parasitism; plant parasitic nematodes; population density; rhizosphere bacteria; roots; strains
Abstract:
... Meloidogyne ethiopica is one of the most important plant-parasitic nematodes affecting vines in Chile and is very aggressive and difficult to control. This study evaluated 16 strains of rhizobacteria, originally isolated from roots of grapevines, for their effects on parasitism and nematode damage to potted vine plants. The antagonistic effect of rhizobacteria was assessed by treating 2-month-old ...
DOI:
10.1007/s10658-012-0073-7

5. Effects of sharp eyespot (Rhizoctonia cerealis) on yield and grain quality of winter wheat

Author:
Lemańczyk, Grzegorz; Kwaśna, Hanna
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 187-200
ISSN:
0929-1873
Subject:
Alternaria alternata; Rhizoctonia cerealis; crops; falling number; fungi; gluten; grain protein; grain yield; shoots; stems; winter wheat; Poland
Abstract:
... Sharp eyespot caused by Rhizoctonia cerealis was assessed in four winter wheat crops surveyed at four locations in north-central Poland in 2006–2009. At the four locations symptoms developed on 41.9–67.7 % of shoots of all plants (average of 4 years) and on 49–73.5 % of shoots of diseased plants (average of 4 years). Slight (category 1) disease was most frequent, occurring on 24.4–41.3 % of shoots ...
DOI:
10.1007/s10658-012-0077-3

6. Evaluation of susceptibility of an olive progeny (Picholine x Meski) to olive leaf spot disease caused by Fusicladium oleagineum

Author:
Rhouma, A.; Chettaoui, M.; Krid, S.; Elbsir, H.; Msallem, M.; Triki, M. A.
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 23-33
ISSN:
0929-1873
Subject:
cultivars; polyphenols; hybrids; trichomes; Fusicladium oleagineum; crossing; olives; plant cuticle; disease resistance; progeny; screening; leaves; disease incidence
Abstract:
... Forty five descendants from a crossing between olive cultivar Picholine de Languedoc and the local cultivar Meski were evaluated for their susceptibility to olive leaf spot (Fusicladium oleagineum) in field and laboratory studies. Disease incidence varied greatly among the descendants and was correlated with the severity of leaf symptoms. Based on field observations and laboratory tests, the hybri ...
DOI:
10.1007/s10658-012-0062-x

7. Inoculum sources of Botryosphaeriaceae species in New Zealand grapevine nurseries

Author:
Billones-Baaijens, R.; Ridgway, H. J.; Jones, E. E.; Jaspers, M. V.
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 159-174
ISSN:
0929-1873
Subject:
Botryosphaeria stevensii; DNA; canes; canopy; inoculum; microscopy; polymerase chain reaction; runoff; single-stranded conformational polymorphism; soil sampling; tanks; New Zealand
Abstract:
... This study investigated the sources of inoculum of Botyosphaeriaceae species in three commercial grapevine nurseries in New Zealand. Botryosphaeriaceae propagules were detected on the surfaces of 33 to 100 % of canes and 33 % of dead grapevine materials using microscopy, plating assays and PCR with Botryosphaeriaceae multi-species primers (Bot100F/Bot472R). Isolations also showed that 15 to 68 % o ...
DOI:
10.1007/s10658-012-0075-5

8. Molecular characterization and phylogenetic analysis of Citrus viroid V isolates from Pakistan

Author:
Cao, Mengji; Atta, Sagheer; Su, Huanan; Wang, Xuefeng; Wu, Qiong; Li, Zhongan; Zhou, Changyong
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 11-21
ISSN:
0929-1873
Subject:
Apscaviroid; Citrus; clones; complementary DNA; cultivars; genetic variation; nucleotides; phylogeny; trees; Pakistan
Abstract:
... Citrus viroid V (CVd-V) was recently characterized and belongs to the genus Apscaviroid within the family Pospiviroidae. 334 CVd-V isolates were identified from Punjab, Pakistan, where CVd-V had not been reported. A total of 68 independent cDNA clones were sequenced from 11 infected trees of different cultivars, ranging from 292 to 295 nucleotides. The nucleotide diversity estimated from the nucle ...
DOI:
10.1007/s10658-012-0034-1

9. Molecular characterization of a phytoplasma of the ash yellows group occurring in strawberry (Fragaria x ananassa Duch.) plants in Argentina

Author:
Fernández, Franco D.; Conci, Vilma C.; Kirschbaum, Daniel S.; Conci, Luis R.
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 1-4
ISSN:
0929-1873
Subject:
Ash yellows phytoplasma; Conyza bonariensis; Fragaria ananassa; Medicago sativa; alfalfa; crops; genes; nucleotide sequences; phylogeny; polymerase chain reaction; ribosomal DNA; ribosomal RNA; strawberries; weeds; Argentina
Abstract:
... Strawberry (Fragaria x ananassa Duch. cv. Camino Real) plants showing phyllody symptoms were detected in production fields in Bella Vista (Corrientes province, Argentina). DNA from all symptomatic samples analyzed yielded fragments of the expected size in PCR reactions using phytoplasma universal primers. DNA from asymptomatic plants yielded no products. The associated phytoplasma was designated a ...
DOI:
10.1007/s10658-012-9951-2

10. Morphological, pathological and genetic diversity of Colletotrichum species responsible for anthracnose in papaya (Carica papaya L)

Author:
Torres-Calzada, Claudia; Tapia-Tussell, Raul; Higuera-Ciapara, Inocencio; Perez-Brito, Daisy
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 67-79
ISSN:
0929-1873
Subject:
Carica papaya; Colletotrichum capsici; Glomerella cingulata; anthracnose; breeding; fungicides; genetic resistance; genetic variation; pathogen identification; pathogenicity; pathogens
Abstract:
... Recently, anthracnose has become a major problem in papaya production and postharvest stages. The occurrence of both Colletotrichum gloeosporioides and Colletotrichum capsici has been demonstrated in this crop. The differential response of these pathogens to fungicides has highlighted the need to use rapid and accurate techniques to identify them. Thus, the objective of this study was to reveal th ...
DOI:
10.1007/s10658-012-0065-7

11. Occurrence of lucerne seed-borne Enterobacter cloacae sprout decay in Gansu Province of China

Author:
Zhang, Zhenfen; Nan, Zhibiao
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 5-9
ISSN:
0929-1873
Subject:
Enterobacter cloacae; alfalfa; bacteria; carbon; nucleotide sequences; ribosomal DNA; seed inoculation; sequence analysis; China
Abstract:
... A previously unreported sprout decay disease of lucerne affecting as many as 15 % of sprouts was observed in Northwest China (Gansu province) in May of 2011. Bacteria were isolated and a range of identification methods undertaken including bacteriological tests, carbon source utilization profiling (Biolog) and 16S rDNA sequence analysis. The bacterial isolates (YZ-DS 1, 2, and 3) were finally iden ...
DOI:
10.1007/s10658-012-0072-8

12. Phenylpropanoids from maize pericarp: resistance factors to kernel infection and fumonisin accumulation by Fusarium verticillioides

Author:
Sampietro, Diego A.; Fauguel, Carolina M.; Vattuone, Marta A.; Presello, Daniel A.; Catalán, Cesar A. N.
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 105-113
ISSN:
0929-1873
Subject:
quantitative trait loci; cell wall components; phenylpropanoids; pericarp; seeds; Fusarium fujikuroi; corn; regression analysis; disease severity; p-coumaric acid; genotype; field experimentation
Abstract:
... The aim of this work was to investigate the role of pericarp phenylpropanoids as resistance factors to F. verticillioides in eleven maize genotypes. Disease severity and kernel fumonisin accumulation were measured after inoculation with F. verticillioides and related to contents of pericarp phenylpropanoids in field trials conducted during 2 years. Grain fumonisin concentrations were highly depend ...
DOI:
10.1007/s10658-012-0069-3

13. Population genetic structure of Mycosphaerella graminicola and Quinone Outside Inhibitor (QoI) resistance in the Czech Republic

Author:
Drabešová, Jana; Ryšánek, Pavel; Brunner, Patrick; McDonald, Bruce A.; Croll, Daniel
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 211-224
ISSN:
0929-1873
Subject:
Mycosphaerella graminicola; cultivars; evolution; fungicide resistance; fungicides; genetic variation; haplotypes; microsatellite repeats; pathogens; wheat; Czech Republic; Germany; Switzerland; United Kingdom; Western European region
Abstract:
... Damage caused by the wheat pathogen Mycosphaerella graminicola increased rapidly during the last two decades in the Czech Republic. We collected isolates from naturally infected fields in seven wheat-growing locations and analysed these using eight microsatellite markers. All markers were highly polymorphic. We found a high degree of genetic diversity and low clonality within all sampled Czech pop ...
DOI:
10.1007/s10658-012-0080-8

14. Population variation of apple scab (Venturia inaequalis) within mixed orchards in the UK

Author:
Xu, Xiangming; Harvey, Nick; Roberts, Anthony; Barbara, Dez
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 97-104
ISSN:
0929-1873
Subject:
Venturia inaequalis; amplified fragment length polymorphism; apples; conidia; cultivars; disease control; fungi; gene frequency; genetic background; genetic resistance; inoculum; loci; microsatellite repeats; orchards; trees; United Kingdom
Abstract:
... Apple scab, caused by Venturia inaequalis, is one of the most important apple diseases worldwide. To investigate between- and within-orchard fungal variability, 212 isolates were sampled from two mixed orchards, one of 10 years of age and the other of 45 years of age, in the UK and genotyped with AFLP and SSR markers. Populations of isolates from the two orchards did not differ significantly in te ...
DOI:
10.1007/s10658-012-0068-4

15. Prevalence and distribution of Botryosphaeriaceae species in New Zealand grapevine nurseries

Author:
Billones-Baaijens, R.; Ridgway, H. J.; Jones, E. E.; Cruickshank, R. H.; Jaspers, M. V.
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 175-185
ISSN:
0929-1873
Subject:
Botryosphaeria dothidea; Botryosphaeria stevensii; propagation materials; rootstocks; scions; New Zealand
Abstract:
... To determine presence of infection by botryosphaeriaceous fungi in plant materials from different grapevine nurseries, different types of grafted plants and cuttings were requested from nine grapevine nurseries around New Zealand. Of the 311 propagation materials and plants collected, 23 % were infected by botryosphaeriaceous fungi. The highest incidence was in failed grafted plants (33 %), follow ...
DOI:
10.1007/s10658-012-0076-4

16. Sulphur supply impairs spread of Verticillium dahliae in tomato

Author:
Bollig, Katharina; Specht, André; Myint, San Shwe; Zahn, Marc; Horst, Walter J.
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 81-96
ISSN:
0929-1873
Subject:
Verticillium dahliae; crops; defense mechanisms; fungi; genotype; glutathione; leaves; metabolites; nutrition; phloem; photosynthesis; root growth; sap; shoots; sulfur; tomatoes; vascular wilt; wilting
Abstract:
... Vascular wilt caused by the soil-borne fungus Verticillium dahliae is a major yield and quality-limiting disease across a broad spectrum of crop plants worldwide. Sulphur-enhanced plant defence mechanisms provide an opportunity to effectively and environmentally safely constrain the wilt disease levels in planta. To evaluate the influence of sulphur nutrition on the protective potential of these m ...
DOI:
10.1007/s10658-012-0067-5

17. Susceptibility of cider apple cultivars to the sooty blotch and flyspeck complex in Spain

Author:
Miñarro, Marcos; Blázquez, María Dolores; Muñoz-Serrano, Andrés; Dapena, Enrique
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 201-209
ISSN:
0929-1873
Subject:
apples; color; cultivars; disease severity; environmental factors; fruit composition; fruiting; fungi; phenol; phenology; sugar content; texture; Spain
Abstract:
... Cultivar may be an important factor associated with the occurrence and severity of sooty blotch and flyspeck (SBFS) fungi in apple. The aim of the study was to analyse the influence of 28 cultivar features on the occurrence of the SBFS complex in apple and to categorize the importance of each using a multivariate approach. Features were classified as agronomic (related to fruiting and growing beha ...
DOI:
10.1007/s10658-012-0079-1

18. The germination problem of oat seed lots affected by Fusarium head blight

Author:
Tekle, Selamawit; Skinnes, Helge; Bjørnstad, Åsmund
Source:
European journal of plant pathology 2013 v.135 no.1 pp. 147-158
ISSN:
0929-1873
Subject:
correlation; seedling growth; germination; hulling; seeds; oats; seedlings; greenhouse experimentation; field experimentation; seed dressings; genotype; agar; Fusarium head blight; deoxynivalenol; Norway
Abstract:
... Mycotoxin contamination and reduced germination capacity (GC) of oats affected by Fusarium head blight (FHB) have become serious concerns in Norway. Spawn- and spray-inoculated field trials were conducted from 2007 to 2010 to screen for resistant genotypes and to study the relationship between GC and deoxynivalenol (DON) contamination. Correlation coefficients between GC and DON level varied from ...
DOI:
10.1007/s10658-012-0074-6