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You searched for: Journal name Acta horticulturae Remove constraint Journal name: Acta horticulturae Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Source 2019 v. no.1243 Remove constraint Source: 2019 v. no.1243
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1. Biological effect of VOCs produced during Pseudomonas syringae pv. actinidiae infection of kiwifruit plant

Author:
A. Cellini; G. Buriani; I. Donati; L. Rocchi; M. T. Rodriguez-Estrada; S. Savioli; S. M. Cristescu; F. Spinelli
Source:
Acta horticulturae 2019 v. no.1243 pp. 7-14
ISSN:
0567-7572
Subject:
Actinidia deliciosa; Pseudomonas syringae pv. actinidiae; bacterial diseases of plants; bacterial growth; benzyl alcohol; culture media; decane; ethylene; genes; host plants; host-pathogen relationships; jasmonic acid; ketones; kiwifruit; leaf extracts; oxylipins; plant pathogenic bacteria; plant protection; signal transduction; virulence; volatile organic compounds
Abstract:
... A wide range of volatile organic compounds (VOCs) is released during plant-pathogen interactions both by the pathogens and the hosts. Some of these VOCs may have an effect on plant signal transduction pathways, thus contributing to pathogenicity or plant defense responses. Strains of the virulent biovar 3 of Pseudomonas syringae pv. actinidiae emit ethylene, both from axenic cultures in a growth m ...
DOI:
10.17660/ActaHortic.2019.1243.2

2. Conservation of Actinidia chinensis alleles in a Psa environment

Author:
J. Sekhon; K. Hoeata; V. Borgers; T. Paterson; N. Taufa; J. Herrick; R. Kaji; M. McNeilage; C. Cheng; P. Datson
Source:
Acta horticulturae 2019 v. no.1243 pp. 109-114
ISSN:
0567-7572
Subject:
Actinidia chinensis; Pseudomonas syringae pv. actinidiae; alleles; allelic variation; bacterial canker; breeding lines; crossing; diploidy; environmental factors; females; flavor; germplasm; kiwifruit; males; orchards; parents; pathovars; plant breeding; pollen; screening; seedlings; tissue culture; virulence; New Zealand
Abstract:
... The Plant & Food Research Actinidia (kiwifruit) germplasm repository contains over 3000 genotypes from circa 350 accessions. The collection provides genetic diversity for breeding new commercial cultivars. Maintenance of the collection has become a major challenge following the arrival and spread in New Zealand of a bacterial canker disease caused by a virulent pathovar of Pseudomonas syringae pv. ...
DOI:
10.17660/ActaHortic.2019.1243.18

3. Effect of plant extracts on Pseudomonas syringae pv. actinidiae gene expression, motility and virulence

Author:
I. Donati; A. Cellini; L. Fiorentini; G. Buriani; F. Spinelli
Source:
Acta horticulturae 2019 v. no.1243 pp. 79-84
ISSN:
0567-7572
Subject:
Actinidia chinensis; Actinidia deliciosa; Pseudomonas syringae pv. actinidiae; agar; bacterial canker; biofilm; economic impact; etiological agents; financial economics; gene expression; gene expression regulation; genes; growing media; host plants; host specificity; industry; kiwifruit; leaves; pandemic; pathogenesis; phenology; plant extracts; population density; quantitative polymerase chain reaction; quorum sensing; virulence; xylem
Abstract:
... Pseudomonas syringae pv. actinidiae (Psa), the causative agent of bacterial canker of kiwi, was firstly isolated in 1992, but the second outbreak dating back to 2008 is responsible for the current pandemics that has led to major economic losses worldwide. Despite the high economic impact of Pseudomonas syringae pv. actinidiae (Psa) on kiwifruit industry, and the intense research efforts, the molec ...
DOI:
/10.17660/ActaHortic.2019.1243.13

4. Endophytic survival of Pseudomonas syringae pv. actinidiae in Actinidia chinensis 'Hort16A' plants

Author:
P. Minardi; S. Ardizzi; C. Lucchese
Source:
Acta horticulturae 2019 v. no.1243 pp. 97-102
ISSN:
0567-7572
Subject:
Actinidia chinensis; Pseudomonas syringae pv. actinidiae; bacterial canker; control methods; endophytes; host plants; pathogen survival; polymerase chain reaction; tissues; virulence
Abstract:
... To tackle the epidemiological role of the latency phase of Pseudomonas syringae pv. actinidiae (Psa) in susceptible asymptomatic host plants, the pathogen survival and colonization were studied in seven-year-old plants of Actinidia chinensis 'Hort16A'. The plants were inoculated with a virulent Psa gfp-expressing/rifampicin-resistant strain (Psagfp-Rif(res)) and the endophytic presence of Psa was ...
DOI:
10.17660/ActaHortic.2019.1243.16

5. Field efficacy of some products against the bacterial canker of kiwifruit in Emilia-Romagna Region, Italy

Author:
M. Preti; M. Scannavini; F. Franceschelli; F. Cavazza; L. Antoniacci; R. Rossi; R. Bugiani; M. G. Tommasini; M. Collina
Source:
Acta horticulturae 2019 v. no.1243 pp. 39-48
ISSN:
0567-7572
Subject:
Pseudomonas syringae pv. actinidiae; acibenzolar-S-methyl; active ingredients; aluminum; bacterial canker; boron; copper; disease control; field experimentation; greenhouses; inoculum; kiwifruit; potassium sulfate; research projects; Italy
Abstract:
... Within the Research Project on the bacterial canker of kiwifruit caused by Pseudomonas syringae pv. actinidiae (PSA) sponsored by Emilia-Romagna Region during the period 2012-2015, the results of 4 trials in open field conditions - in presence of natural inoculum - to verify the efficacy of different active ingredients to control the disease are presented. The field trials confirmed previous studi ...
DOI:
10.17660/ActaHortic.2019.1243.7

6. First attempts to obtain Actinidia deliciosa plants inoculated with endophytes antagonistic against Psa

Author:
F. Ferrini; S. Borselli; M. Martini; C. Frausin; G. Zanini; G. Fanna; N. Loi; P. Ermacora
Source:
Acta horticulturae 2019 v. no.1243 pp. 29-32
ISSN:
0567-7572
Subject:
Actinidia deliciosa; Pseudomonas asplenii; Pseudomonas syringae pv. actinidiae; bacterial canker; biological control agents; disease outbreaks; disease resistance; endophytes; kiwifruit; orchards; pathogens; plantlets; Italy
Abstract:
... Severe outbreaks of bacterial canker of kiwifruit caused by Pseudomonas syringae pv. actinidiae (Psa) have been reported in Veneto and Friuli Venezia Giulia (north-east Italy) since 2010-2011. Since in some orchards with severe epidemics of Psa some Hayward plants were less affected by Psa, we carried out a study aiming at the selection of potential biocontrol agents (BCAs). From asymptomatic plan ...
DOI:
10.17660/ActaHortic.2019.1243.5

7. Influence of cultural practices on the incidence and severity of kiwifruit bacterial canker

Author:
I. Donati; S. Mauri; A. Cellini; G. Buriani; L. Fiorentini; G. Costa; S. Graziani; F. Spinelli
Source:
Acta horticulturae 2019 v. no.1243 pp. 59-64
ISSN:
0567-7572
Subject:
Pseudomonas syringae pv. actinidiae; aeration; bacterial canker; canopy; climatic factors; cultivation area; disease control; disease incidence; fertilizer application; fruit yield; gibberellins; guidelines; industry; iron; irradiation; kiwifruit; nitrogen fertilizers; nutrient deficiencies; pandemic; pesticides; sanitary and phytosanitary regulations; toxicity; water stress; xenobiotics; China; Italy
Abstract:
... Italy has a preeminent rank in kiwifruit industry, being the first exporter and the second largest producer after China. However, in the last years kiwifruit yields and the global cultivated area considerably decreased, due to the pandemic spread of the bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa). Several climatic conditions and cultural practices affect the development of ...
DOI:
10.17660/ActaHortic.2019.1243.10

8. New insights about the complexity of Pseudomonas syringae pv. actinidiae across the world

Author:
A. Mazzaglia; S. Ciarroni; M. C. Taratufolo; M. I. Butler; R. T. M. Poulter; G. Vergnaud; G. M. Balestra
Source:
Acta horticulturae 2019 v. no.1243 pp. 15-22
ISSN:
0567-7572
Subject:
Actinidia; Pseudomonas syringae pv. actinidiae; bacterial canker; financial economics; fruit crops; fruit diseases; genetic variation; kiwifruit; loci; minisatellite repeats; multiple-locus variable number tandem-repeat analysis; orchards; pathogens; provenance; virulence; virulent strains; Chile; China; Europe; Japan; Korean Peninsula; New Zealand
Abstract:
... The bacterial canker of kiwifruit caused by Pseudomonas syringae pv. actinidiae (Psa), is an emblematic example of a catastrophic disease of fruit crops. In 2008, after decades of limited damages, a new, extremely virulent form emerged and devastated thousands of hectares of Actinidia spp. orchards all over the world with impressive economic losses. To elucidate the diffusion of different Psa type ...
DOI:
10.17660/ActaHortic.2019.1243.3

9. Occurrence of the virulent strain of Pseudomonas syringae pv. actinidiae in Japan: a case study of a field in Shizuoka Prefecture

Author:
Y. Takikawa; M. Tsuji; S. Miyazaki; M. Sudo; M. Yahata
Source:
Acta horticulturae 2019 v. no.1243 pp. 49-54
ISSN:
0567-7572
Subject:
Actinidia chinensis; Actinidia deliciosa; Pseudomonas syringae pv. actinidiae; bacteria; blight; case studies; disease incidence; kiwifruit; leaf spot; orchards; pandemic; pathogen identification; pathogens; polymerase chain reaction; spring; virulent strains; Japan
Abstract:
... Pseudomonas syringae pv. actinidiae (Psa) has been shown to have heterotypic populations including a pandemic highly virulent strain (Psa3 or Psa-V). Although Psa was first recorded in Japan, the virulent strain Psa3 had not been observed until spring of 2014, when the sudden outbreak of Psa3 took place in Japan. Also in Shizuoka Prefecture, we noticed the incidence of bacterial leaf spots in seve ...
DOI:
10.17660/ActaHortic.2019.1243.8

10. Postharvest quality and health of kiwifruit 'Hayward' affected by Pseudomonas syringae pv. actinidiae

Author:
S. Prencipe; L. Nari; G. Vittone; M. L. Gullino; A. Garibaldi; D. Spadaro
Source:
Acta horticulturae 2019 v. no.1243 pp. 91-96
ISSN:
0567-7572
Subject:
1-methylcyclopropene; Actinidia deliciosa; Botrytis; Pseudomonas syringae pv. actinidiae; bacterial canker; firmness; fruit quality; fruits; kiwifruit; orchards; pathogens; physiological state; postharvest diseases; shelf life; storage conditions; sugars; titratable acidity
Abstract:
... Pseudomonas syringae pv. actinidiae (Psa) is the causal agent of bacterial canker of kiwifruit. The presence of Psa could affect the postharvest quality and health of fruit, which depends on the physiological state of the fruits and the techniques used for storage. In order to evaluate the effects of the presence of the pathogen on postharvest quality, the fruits from 12 orchards of Actinidia deli ...
DOI:
10.17660/ActaHortic.2019.1243.15

11. Preliminary results on susceptibility to bacterial canker of Actinidia spp. accessions

Author:
S. Perez; E. Biondi; D. Giuliani; G. Comuzzo; R. Testolin; A. Bertaccini
Source:
Acta horticulturae 2019 v. no.1243 pp. 115-120
ISSN:
0567-7572
Subject:
Actinidia arguta; Actinidia chinensis; Actinidia deliciosa; Actinidia eriantha; Pseudomonas syringae pv. actinidiae; bacterial canker; disease severity; disease susceptibility; genotype; kiwifruit; leaf spot; leaves; pathogens; spraying; virulent strains
Abstract:
... A study was conducted on 14 accessions of Actinidia spp. to evaluate their susceptibility to the bacterial canker. Experimental inoculations were carried out, under controlled conditions, on young leaves of kiwifruit plants grown in pots by spraying a calibrated water suspension of an Italian, virulent strain (isolated in 2013) of Pseudomonas syringae pv. actinidiae. Actinidia chinensis 'Belen' wa ...
DOI:
10.17660/ActaHortic.2019.1243.19

12. Study on the epidemic evolution of leaf spot symptoms caused by P. syringae pv. actinidiae on kiwifruit

Author:
L. Antoniacci; R. Bugiani; R. Rossi
Source:
Acta horticulturae 2019 v. no.1243 pp. 65-70
ISSN:
0567-7572
Subject:
Actinidia; Pseudomonas syringae pv. actinidiae; autumn; budbreak; climatic factors; growing season; kiwifruit; leaf spot; leaves; meteorological data; orchards; shoots; spring; Italy
Abstract:
... The aim of the study was to observe the occurrence and development of the leaf spot symptoms caused by Pseudomonas syringae pv. actinidiae (Psa) on kiwifruit during the growing season in order to determine both the climatic predisposing factors and plant susceptibility. The observation was carried out over the years 2013 and 2014 in naturally infected kiwi fruit orchards. Two kiwi fruit orchards o ...
DOI:
10.17660/ActaHortic.2019.1243.11

13. The accessory genome of Pseudomonas syringae pv. actinidiae (PSA) strains from China, New Zealand, Chile, Italy and Korea

Author:
M. I. Butler; A. Mazzaglia; L. Gallipoli; G. M. Balestra; R. T. M. Poulter
Source:
Acta horticulturae 2019 v. no.1243 pp. 1-6
ISSN:
0567-7572
Subject:
Pseudomonas syringae pv. actinidiae; genes; lysine; plasmids; sequence diversity; transfer RNA; transposons; Chile; China; Italy; Japan; Korean Peninsula; New Zealand
Abstract:
... Pseudomonas syringae pv. actinidiae (PSA) strains can be grouped into four major groups, Psa1 (Japan), Psa2 (Korea), Psa3 (China, New Zealand, Chile, Europe, Korea) and Psa5, recently described from Japan. These PSA groups have similar core genomes but have a strikingly diverse repertoire of accessory genomes. For example, great sequence diversity is shown by the integrative conjugative elements ( ...
DOI:
10.17660/ActaHortic.2019.1243.1

14. A reliable method for Pseudomonas syringae pv. actinidiae detection in kiwifruit explants during in vitro propagation

Author:
P. Minardi; S. Ardizzi; C. Lucchese
Source:
Acta horticulturae 2019 v. no.1243 pp. 103-108
ISSN:
0567-7572
Subject:
Actinidia deliciosa; Pseudomonas syringae pv. actinidiae; bacterial canker; endophytes; explants; greenhouses; kiwifruit; micropropagation; plantlets; polymerase chain reaction; risk; selective media; shoots; tobacco; virulence; Italy
Abstract:
... According to recent statistics, in Italy a significant spread of the bacterial canker of Actinidia caused by Pseudomonas syringae pv. actinidiae (Psa) is recorded with peaks of 70 and 100%, and lower percentages ranging around 50%. The control of the Psa is a priority especially considering the hazard represented by the endophytic bacterial presence in nursery material. To evaluate the risk that c ...
DOI:
10.17660/ActaHortic.2019.1243.17

15. Quorum sensing in Pseudomonas syringae pv. actinidiae (Psa)

Author:
L. Fiorentini; I. Donati; A. Cellini; G. Buriani; J. Vanneste; F. Spinelli
Source:
Acta horticulturae 2019 v. no.1243 pp. 85-90
ISSN:
0567-7572
Subject:
Pseudomonas fluorescens; Pseudomonas putida; Pseudomonas syringae pv. actinidiae; bacteria; biofilm; bioinformatics; communications technology; genes; homoserine; host plants; lactones; microbial communities; phenotype; phyllosphere; population density; quantitative polymerase chain reaction; quorum sensing; receptors; virulence
Abstract:
... Quorum sensing (QS) is a complex bacterial intra and interspecific communication system that is regulated by signaling molecules produced by cell density-dependent mechanisms. QS may regulate different phenotypes such as virulence, motility and biofilm production. The aim of this research was to investigate the existence of a QS system in Pseudomonas syringae pv. actinidiae (Psa). Psa lacks the ca ...
DOI:
10.17660/ActaHortic.2019.1243.14

16. Validation of New Zealand Psa forecasting model in Emilia Romagna Region, Italy

Author:
L. Antoniacci; R. Bugiani; R. Rossi; A. Calzolari; A. Alessandrini; R. Gozzi; F. Spinelli; A. Cellini; S. Mauri; I. Donati
Source:
Acta horticulturae 2019 v. no.1243 pp. 71-78
ISSN:
0567-7572
Subject:
adults; bacteria; bacterial canker; fruit growing; growing media; growing season; inoculum; kiwifruit; models; pathogens; plantlets; polymerase chain reaction; prediction; rain; spring; summer; vines; Italy; New Zealand
Abstract:
... A forecasting model to predict the kiwifruit bacterial canker infections was developed in New Zealand. In 2012, we started the validation of such forecasting in the kiwifruit growing areas of Emilia-Romagna Region. Validation was carried over 2012-2014, exposing micro-propagated potted kiwi plantlets under untreated infected plants from march until November and check them for symptom occurrence, a ...
DOI:
10.17660/ActaHortic.2019.1243.12

17. The completely assembled genome of a strain from the New Zealand Pseudomonas syringae pv. actinidiae (PSA) outbreak

Author:
R. T. M. Poulter; I. Lamont; P. Stockwell; M. I. Butler; G. Poulter
Source:
Acta horticulturae 2019 v. no.1243 pp. 23-28
ISSN:
0567-7572
Subject:
Pseudomonas syringae pv. actinidiae; bioinformatics; chromosomes; genome; nucleotide sequences; pathogens; plasmids; New Zealand
Abstract:
... The complete genome sequence of various Pseudomonas syringae pv. actinidiae (PSA) strains, including some isolated in New Zealand, have previously been published. We have now finished the complete assembly of the genome of one strain of PSA from the initial outbreak in New Zealand in 2010 (ICMP18708). The genome consists of a circular chromosome of 6,555,578 base pairs and a plasmid of 74,432 base ...
DOI:
10.17660/ActaHortic.2019.1243.4

18. The cycle of disease and population structure of Pseudomonas syringae pv. actinidiae

Author:
M. Scortichini
Source:
Acta horticulturae 2019 v. no.1243 pp. 55-58
ISSN:
0567-7572
Subject:
Actinidia; Pseudomonas syringae pv. actinidiae; air temperature; bacteria; bacterial canker; climatic factors; control methods; crop production; disease control; endophytes; frost; fruit growing; genetic variation; kiwifruit; microbial detection; multigene family; orchards; pandemic; pathogens; phaseolotoxin; phenotype; phytotoxins; population structure; prediction; provenance; rain; typhoons; virulence; Chile; Italy; Japan; New Zealand; South Korea
Abstract:
... Recent studies aiming at elucidating the epidemiology of Pseudomonas syringae pv. actinidia (Psa) in different continents allowed us to better define its disease cycle on cultivated Actinidia species. Some climate factors appear to play a fundamental role in favoring the virulence and the spreading of the pathogen in an area. Early and late frost event promote the rapid multiplication of the bacte ...
DOI:
10.17660/ActaHortic.2019.1243.9