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1. Adaptability of Spring Barley Varieties Bred at FANC of the Northeast

Author:
T. K. Sheshegova; I. N. Shchennikova; L. M. Shchekleina; E. V. Diaghileva
Source:
Russian agricultural sciences 2022 v.48 no.3 pp. 156-161
ISSN:
1068-3674
Subject:
net blotch,   etc   ; agricultural sciences; agroecology; high-yielding varieties; spring barley; surveys;     Show all 6 Subjects
Abstract:
... The surveys were performed to analyze the adaptive capacity in the spring barley varieties bred at the Rudnitsky Federal Agricultural Science Center of the Northeast (FANC Northeast) for the yield-related traits and the antifungal resistance. The surveys were carried out in Kirov oblast in 2018–2021. Nine in-demand spring barley varieties bred in 1992 to 2021 served as the survey material. Statist ...
DOI:
10.3103/S1068367422030144

2. Host and pathogen genetics reveal an inverse gene-for-gene association in the P. teres f. maculata–barley pathosystem

Author:
Ryan M. Skiba; Nathan A. Wyatt; Gayan K. Kariyawasam; Jason D. Fiedler; Shengming Yang; Robert S. Brueggeman; Timothy L. Friesen
Source:
Theoretical and applied genetics 2022 v.135 no.10 pp. 3597-3609
ISSN:
0040-5752
Subject:
net blotch,   etc   ; Pyrenophora teres; alleles; barley; host-pathogen relationships; loci; pathogens; progeny; quantitative trait loci; virulence;     Show all 10 Subjects
Abstract:
... KEY MESSAGE: Pathogen and host genetics were used to uncover an inverse gene-for-gene interaction where virulence genes from the pathogen Pyrenophora teres f. maculata target barley susceptibility genes, resulting in disease. Although models have been proposed to broadly explain how plants and pathogens interact and coevolve, each interaction evolves independently, resulting in various scenarios o ...
Handle:
10113/7950380
DOI:
10.1007/s00122-022-04204-x

3. Management of Pyrenophora teres f. teres, the Causal Agent of Net Form Net Blotch of Barley, in A Two-Year Field Experiment in Central Italy

Author:
Francesco Tini; Lorenzo Covarelli; Giacomo Ricci; Emilio Balducci; Maurizio Orfei; Giovanni Beccari
Source:
Pathogens 2022 v.11 no.3 pp. -
ISSN:
2076-0817
Subject:
net blotch,   etc   ; Pyrenophora teres; barley; cultivars; disease incidence; field experimentation; food production; fungal biomass; grain yield; leaves; malt; pathogens; Italy;     Show all 13 Subjects
Abstract:
... Pyrenophora teres is the causal agent of barley net blotch (NB), a disease that can be found in two different forms: net form (NFNB), caused by P. teres f. teres, and spot form (SFNB), caused by P. teres f. maculata. A two-year field experiment was carried out to evaluate the response to NB of six different barley cultivars for malt or feed/food production. In addition, the efficacy of several rec ...
DOI:
10.3390/pathogens11030291

4. Infection experiments of Pyrenophora teres f. maculata on cultivated and wild barley indicate absence of host specificity

Author:
Asieh Vasighzadeh; Bahram Sharifnabi; Mohammad Javan-Nikkhah; Eva H. Stukenbrock
Source:
European journal of plant pathology 2022 v.163 no.3 pp. 749-759
ISSN:
0929-1873
Subject:
net blotch,   etc   ; Hordeum murinum; Pyrenophora teres; barley; cultivars; disease transmission; evolution; fungi; host specificity; pathogen survival; pathogenicity; pathogens; pathotypes; plant pathology;     Show all 14 Subjects
Abstract:
... It is important to investigate the possibility of pathogen transmission between cultivated and uncultivated hosts due to the role of the latter in pathogen evolution and the creation of new pathotypes which may break resistance genes of cultivated hosts. Wild hosts can also act as a pathogen reservoir offseason and cause pathogen survival. Spot form of net blotch (SFNB), caused by the fungus Pyren ...
DOI:
10.1007/s10658-022-02496-9

5. Selection index and stability analysis for malting barley variety release in Ethiopia

Author:
Girma F. Dinsa; Endashaw Tadesse; Hiwot Sebsibe; Kassahun Tadesse
Source:
Journal of crop science and biotechnology 2022 v.25 no.3 pp. 243-252
ISSN:
1975-9479
Subject:
net blotch,   etc   ; Hordeum vulgare; analysis of variance; barley; biotechnology; glucans; high-yielding varieties; industry; malt extract; protein content; selection index; variance; Ethiopia;     Show all 13 Subjects
Abstract:
... Barley (Hordeum vulgare L.) is one of the major strategic crops in Ethiopia. Average yield is low due to low-yielding varieties, biotic and abiotic constraints. Farmers are concerned with quantity while the malting industries need to ensure quality. There has been a general belief by the industry that two-row barleys are better than the six-row types in terms of quality but farmers are inclined to ...
DOI:
10.1007/s12892-021-00127-z

6. Efficacy of spot form of net blotch suppression in barley from seed, fertiliser and foliar applied fungicides

Author:
Mark S. McLean; Nick Poole; Isabel Munoz Santa; Grant J. Hollaway
Source:
Crop protection 2022 v.153 pp. 105865
ISSN:
0261-2194
Subject:
net blotch,   etc   ; Hordeum vulgare; Pyrenophora teres; barley; developmental stages; foliar application; fungicide application; grain yield; leaf emergence; plant protection; stem elongation; tebuconazole; Australia;     Show all 13 Subjects
Abstract:
... Spot form of net blotch (SFNB), caused by Pyrenophora teres f. maculata is a prevalent and damaging foliar disease of barley (Hordeum vulgare). Fungicides are commonly used to manage SFNB infection and reduce production loss in susceptible varieties. This study determined the efficacy of suppression of SFNB and associated grain yield and quality improvements from application of fungicides to seed, ...
DOI:
10.1016/j.cropro.2021.105865

7. Detection of Ramularia collo‐cygni from barley in Australia using triplex quantitative and droplet digital PCR [Erratum: July 2022, Vol.78(7), p.3207]

Author:
Noel L Knight; Azin Moslemi; Farhana Begum; Kejal N Dodhia; Lorenzo Covarelli; Andrea L Hills; Francisco J Lopez‐Ruiz
Source:
Pest management science 2022 v.78 no.4 pp. 1367-1376
ISSN:
1526-498X
Subject:
net blotch,   etc   ; DNA; DNA-directed RNA polymerase; Hordeum vulgare; Ramularia; barley; droplets; genes; leaf spot; leaves; pathogens; peptide elongation factors; pest management; phylogeny; quantitative polymerase chain reaction; South Australia; Tasmania; Western Australia;     Show all 18 Subjects
Abstract:
... BACKGROUND: Ramularia leaf spot (RLS), caused by Ramularia collo‐cygni, is an emerging threat to barley (Hordeum vulgare L.) production. RLS has been reported in Australia, however only minimal information is available regarding its detection and distribution. Due to initial asymptomatic growth in planta, slow growth in vitro and symptomatic similarities to net blotch and physiological leaf spots, ...
DOI:
10.1002/ps.6753

8. Traits discovery in Hordeum vulgare sbsp. spontaneum accessions and in lines derived from interspecific crosses with wild Hordeum species for enhancing barley breeding efforts

Author:
Sajid Rehman; Mariam Amouzoune; Houda Hiddar; Hafid Aberkane; Rachid Benkirane; Abdelkarim Filali‐Maltouf; Muamar Al‐Jaboobi; Leila Acqbouch; Athanasios Tsivelikas; Ramesh Pal Singh Verma; Zakaria Kehel; Ahmed Birouk; Ahmed Amri
Source:
Crop science 2021 v.61 no.1 pp. 219-233
ISSN:
0011-183X
Subject:
net blotch,   etc   ; barley; crossing; germplasm; grain yield; leaf rust; powdery mildew; seeds; straw;     Show all 9 Subjects
Abstract:
... Barley is a crop of global significance with multiple uses (feed, food and beverages), but its productivity worldwide is limited by several abiotic and biotic stresses. Crop wild relatives, exclusively, Hordeum vulgare ssp. spontaneum and H. bulbosum, are important genetic resources needed to develop new adapted varieties. A total of 117 accessions of H. spontaneum from different origins and 145 l ...
DOI:
10.1002/csc2.20360

9. Resistance of modern spring barley cultivars to harmful organisms

Author:
A. G. Semenova; A. V. Anisimova; O. N. Kovaleva
Source:
Trudy po prikladnoj botanike, genetike i selekcii 2021 v.182 no.4 pp. 108-116
ISSN:
2619-0982
Subject:
net blotch,   etc   ; Siberia; cultivars; leaf rust; leaves; powdery mildew; spring barley; virulence; Denmark; England; France; Germany;     Show all 12 Subjects
Abstract:
... Background. Diseases and pests cause great damage to barley stands and harvests. Harvest losses from harmful organisms reach 25–30%.Materials and methods. During 2017–2020, 46 spring barley cultivars from the VIR collection, listed in the State Register for Selection Achievements, were studied for their resistance to fritfly, net and spot blotches, brown rust, and powdery mildew. The tests were ca ...
DOI:
10.30901/2227-8834-2021-4-108-116

10. Sexual recombination and genetic diversity in Iranian populations of Pyrenophora teres

Author:
Haleh Dokhanchi; Mahdi Arzanlou; Farnaz Abed‐Ashtiani
Source:
Phytopathologische Zeitschrift 2021 v.169 no.7-8 pp. 447-460
ISSN:
0931-1785
Subject:
net blotch,   etc   ; Pyrenophora teres; barley; fungi; genetic recombination; genetic variation; microsatellite repeats; pathogens; polymerase chain reaction; Iran;     Show all 10 Subjects
Abstract:
... Pyrenophora teres is an economically important pathogen of barley worldwide causing net blotch diseases. In this study, the frequency and mating‐type alleles's distribution as well as genetic diversity of P. teres were assessed on micro‐spatial scale and also on macro‐geographical scale to find out whether a sexual cycle is possible within its Iranian populations. A multiplex PCR assay was develop ...
DOI:
10.1111/jph.13001

11. Using risk models for control of leaf blotch diseases in barley minimises fungicide use – experiences from the Nordic and Baltic countries

Author:
Lise Nistrup Jørgensen; Niels Matzen; Andrea Ficke; Björn Andersson; Marja Jalli; Antanas Ronis; Ghita C. Nielsen; Patrik Erlund; Annika Djurle
Source:
Acta agriculturæ Scandinavica 2021 v.71 no.4 pp. 247-260
ISSN:
1651-1913
Subject:
net blotch,   etc   ; Pyrenophora teres; Ramularia; Rhynchosporium; barley; cultivars; dry season; fungicides; humidity; leaf blotch; models; plant protection; risk; tillage;     Show all 14 Subjects
Abstract:
... The disease pressure from Pyrenophora teres, Rhynchosporium graminicola, and Ramularia collo–cygni varies widely between years and locations, which highlights the need for using risk models to avoid unnecessary use of fungicides. Three disease risk models were tested in thirty–three field trials during two seasons in five countries in order to validate and identify situations favourable for barley l ...
DOI:
10.1080/09064710.2021.1884742

12. Detection of crop diseases using enhanced variability imagery data and convolutional neural networks

Author:
Shai Kendler; Ran Aharoni; Sierra Young; Hanan Sela; Tamar Kis-Papo; Tzion Fahima; Barak Fishbain
Source:
Computers and electronics in agriculture 2022 v.193 pp. 106732
ISSN:
0168-1699
Subject:
net blotch,   etc   ; Phytophthora infestans; agriculture; agrochemicals; barley; data collection; electronics; geometry; lighting; powdery mildew; stem rust; stripe rust of wheat;     Show all 12 Subjects
Abstract:
... The timely detection of crop diseases is critical for securing crop productivity, lowering production costs, and minimizing agrochemical use. This study presents a crop disease identification method that is based on Convolutional Neural Networks (CNN) trained on images taken with consumer-grade cameras. Specifically, this study addresses the early detection of wheat yellow rust, stem rust, powdery ...
DOI:
10.1016/j.compag.2022.106732

13. First screening for resistance in Argentinian cultivars against Pyrenophora teres F. maculata, a recently reported pathogen in wheat

Author:
J. P. Uranga; A. E. Perelló; M. Schierenbeck; M. R. Simón
Source:
European journal of plant pathology 2021 v.161 no.2 pp. 357-369
ISSN:
0929-1873
Subject:
net blotch,   etc   ; Prosopis pallida; Pyrenophora teres; Pyrenophora tritici-repentis; adults; cultivars; leaf spot; mature plants; plant pathology; seedlings; wheat; Argentina;     Show all 12 Subjects
Abstract:
... The Pyrenophora genus involves an extremely important group of fungal plant pathogens, causing some of the most devastating disease epidemics of cereal plants worldwide. Among them, tan spot caused by Pyrenophora tritici-repentis is one of the major constraints of wheat production in Argentina. Furthermore, Pyrenophora teres F. maculata is a new recently recorded pathogen infecting leaves of wheat ...
DOI:
10.1007/s10658-021-02328-2

14. Virulence of Icelandic Pyrenophora teres f. teres populations and resistance of Icelandic spring barley lines

Author:
Fluture Novakazi; Magnus Goransson; Trggvi Sturla Stefansson; Marjo Hokka; Jon Hallsteinn Hallsson
Source:
Journal of plant pathology 2022 v.104 no.1 pp. 205-213
ISSN:
1125-4653
Subject:
net blotch,   etc   ; Pyrenophora teres; cultivars; pathogens; pathotypes; plant pathology; sexual reproduction; spores; spring barley; virulence; Austria; Finland; Iceland; Sweden; Switzerland;     Show all 15 Subjects
Abstract:
... The causal agent of the barley net blotch disease, Pyrenophora teres, is known for its high level of diversity due to sexual reproduction. Different pathotypes, defined by a virulence combination, even within the same fields are frequently found and virulence between locations can vary considerably. Evaluation of virulence patterns of a pathogen population is essential for breeding resistant culti ...

15. Genetic diversity of Pyrenophora teres in Algeria

Author:
Wassila Ahmed Lhadj; Karima Boungab; Fatiha Righi Assia; Arzu Celik Oguz; Ariz Karakaya; Faith Olmez
Source:
Journal of plant pathology 2022 v.104 no.1 pp. 305-315
ISSN:
1125-4653
Subject:
net blotch,   etc   ; Drechslera; Pyrenophora teres; anamorphs; ascospores; asexual reproduction; barley; conidia; fungi; genetic variation; microsatellite repeats; plant pathology; single nucleotide polymorphism; Algeria;     Show all 14 Subjects
Abstract:
... Barley net blotch is one of the most widespread and destructive foliar diseases of barley crops worldwide. The causal fungal agent, Pyrenophora teres (anamorphic stage: Drechslera teres) occurs in two forms, P. teres f. maculata (Ptm) and P. teres f. teres (Ptt) exhibiting the spot and net type symptoms, respectively. In this study, sixty-one P. teres single conidia isolates were obtained from dif ...

16. Study of the influence of barley varieties with different resistance to barley net blotch on the change in the structure of the hemibiotrophic pathogen population by morphological and cultural characteristics and virulence

Author:
Volkova Galina; Yakhnik Yana; Smirnova Alena; Klychnikov Egor
Source:
BIO web of conferences 2020 v.21 pp. 00030
ISSN:
2117-4458
Subject:
net blotch,   etc   ; Pyrenophora teres; barley; fungi; pathogens; sporulation; virulence;     Show all 7 Subjects
Abstract:
... The study is devoted to the analysis of the correlation of morphological and cultural characteristics and virulence of Pyrenophora teres Drechs. isolates, and various resistance to the pathogen of barley varieties (Versal, Kubagro-1, Romance). The main morphological types of colonies of the fungus isolates obtained from the barley varieties with different resistance were determined. It was found t ...
DOI:
10.1051/bioconf/20202100030

17. Investigating In Vitro Mating Preference Between or Within the Two Forms of Pyrenophora teres and Its Hybrids

Author:
Buddhika A. Dahanayaka; Niloofar Vaghefi; Lislé Snyman; Anke Martin
Source:
Phytopathology 2021 v.111 no.12 pp. 2278-2286
ISSN:
0031-949X
Subject:
net blotch,   etc   ; Pyrenophora teres; ascospores; barley; hybridization; plant pathology; vigor;     Show all 7 Subjects
Abstract:
... Net blotch diseases result in significant yield losses to barley industries worldwide. They occur as net-form and spot-form net blotch caused by Pyrenophora teres f. teres and P. teres f. maculata, respectively. Hybridization between the forms was proposed to be rare, but recent identifications of field hybrids has renewed interest in the frequency and mechanisms underlying hybridization. This stu ...
DOI:
10.1094/PHYTO-02-21-0058-R

18. Pyrenophora teres growth and severity of net blotch on barley under salt stress

Author:
Amani Ben Alaya; Fatma Rabhi; Kamel Hessini; Naceur Djébali
Source:
European journal of plant pathology 2021 v.161 no.3 pp. 709-722
ISSN:
0929-1873
Subject:
net blotch,   etc   ; Pyrenophora teres; agar; barley; carrots; culture media; fungal growth; irrigation; oatmeal; pathogens; plant pathology; polyethylene glycol; salinity; salt stress; soil salinization; temperature;     Show all 16 Subjects
Abstract:
... Pyrenophora teres causes one of the most destructive barley diseases in semi-arid production areas worldwide. With the burgeoning issue of soil salinization, this study focused on the effect of salt in combination with temperature and light on growth of P. teres and the response of barley to the pathogen. The growth of four isolates of P. teres (Pt12, Pt14, Pt16 and Pt18) was dependent on the medi ...
DOI:
10.1007/s10658-021-02355-z

19. Gene expression and metabolite analysis in barley inoculated with net blotch fungus and plant growth-promoting rhizobacteria

Author:
Aurélie Backes; Sophie Charton; Sébastien Planchon; Qassim Esmaeel; Kjell Sergeant; Jean-Francois Hausman; Jenny Renaut; Essaid Ait Barka; Cédric Jacquard; Gea Guerriero
Source:
Plant physiology and biochemistry 2021 v.168 pp. 488-500
ISSN:
0981-9428
Subject:
net blotch,   etc   ; Drechslera; Paraburkholderia; barley; biological control agents; carbohydrates; fungi; gene expression; lipids; metabolites; metabolomics; pathogens; plant growth-promoting rhizobacteria; plant physiology; plant protection;     Show all 15 Subjects
Abstract:
... Net blotch, caused by the ascomycete Drechslera teres, can compromise barley production. Beneficial bacteria strains are of substantial interest as biological agents for plant protection in agriculture. Belonging to the genus Paraburkholderia, a bacterium, referred to as strain B25, has been identified as protective for barley against net blotch. The strain Paraburkholderia phytofirmans (strain Ps ...
DOI:
10.1016/j.plaphy.2021.10.027

20. An optimized sporulation method for the wheat fungal pathogen Pyrenophora tritici-repentis

Author:
Silke Jacques; Leon Lenzo; Kofi Stevens; Julie Lawrence; Kar-Chun Tan
Source:
Plant methods 2021 v.17 no.1 pp. 52
ISSN:
1746-4811
Subject:
net blotch,   etc   ; Hordeum vulgare; Pyrenophora teres; Pyrenophora tritici-repentis; barley; cultivars; fungi; genetic resistance; genomics; mycelium; plant pathogens; spores; sporulation; vegetative growth; virulence; wheat;     Show all 16 Subjects
Abstract:
... BACKGROUND: The necrotrophic fungal pathogen Pyrenophora tritici-repentis (Ptr) causes tan (syn. yellow) spot of wheat and accounts for significant yield losses worldwide. Understanding the molecular mechanisms of this economically important crop disease is crucial to counteract the yield and quality losses of wheat globally. Substantial progress has been made to comprehend the race structure of t ...
DOI:
10.1186/s13007-021-00751-4