Use of Green Fluorescent Protein and Image Analysis to Quantify Proliferation of Trichoderma harzianum in Nonsterile Soil.

abstract：:The fungal biocontrol agent, Paecilomyces lilacinus strain 251 (PL251), was evaluated for its potential to control the root-knot nematode Meloidogyne incognita on tomato at varying application rates and inoculum densities. Conversely to previous studies, significant dose-response relationships could not be established...

journal_title：Phytopathology

authors： Kiewnick S,Neumann S,Sikora RA,Frey JE

更新日期：2011-01-01 00:00:00

abstract：:Xanthomonas oryzae pv. oryzicola causes bacterial leaf streak in rice, a destructive disease worldwide. In this study, six putative hypothetical secreted proteins, which were absent in X. oryzae pv. oryzae, were detected from X. oryzae pv. oryzicola strain BLS256. Disruption-based mutagenesis study revealed that one o...

journal_title：Phytopathology

authors： Qian G,Zhang Y,Zhou Y,Liu C,Zhao Y,Song Z,Fan J,Hu B,Liu F

更新日期：2012-09-01 00:00:00

abstract：:ABSTRACT In 1980, over 90% of all plant-pathogenic pseudomonads and xanthomonads were lumped into Pseudomonas syringae and Xanthomonas campestris, respectively, as pathovars. The term "pathovar" was created to preserve the name of plant pathogens, but has no official standing in nomenclature. Proposals to elevate and ...

journal_title：Phytopathology

authors： Schaad NW,Vidaver AK,Lacy GH,Rudolph K,Jones JB

更新日期：2000-03-01 00:00:00

abstract：:ABSTRACT An experiment was designed to compare cycles of selection of four maize genotypes for ear- and grain-quality characteristics, interactions with Aspergillus flavus and Fusarium verticillioides infection, and insect ear infestation in two seasons. Mean infection levels by A. flavus and F. verticillioides were s...

journal_title：Phytopathology

authors： Cardwell KF,Kling JG,Maziya-Dixon B,Bosque-Pérez NA

更新日期：2000-03-01 00:00:00

abstract：:ABSTRACT The capacity of the microflora in rockwool to suppress Pythium aphanidermatum, the causative agent of root and crown rot in cucumber, was assessed. Disease development of cucumber (Cucumis sativus) grown on rockwool was evaluated in an "ebb-and-flood" system with a recirculating nutrient solution after inocul...

journal_title：Phytopathology

authors： Postma J,Willemsen-de Klein MJ,van Elsas JD

更新日期：2000-02-01 00:00:00

abstract：:Bacterial leaf streak (BLS) of wheat, caused by Xanthomonas translucens pv. undulosa, has been a notable disease in Minnesota wheat fields over the past decade. Potential sources of the pathogen include infested seed and crop debris. Perennial weeds are also considered a possible inoculum source, but no surveys have b...

journal_title：Phytopathology

authors： Ledman KE,Curland RD,Ishimaru C,Dill-Macky R

更新日期：2020-11-23 00:00:00

abstract：:ABSTRACT The study was conducted to evaluate the potential of induced resistance to infestation of sunflower (Helianthus annuus L.) by the parasitic weed Orobanche cumana Wallr. Treatment of sunflower seeds with 40 ppm of benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester (BTH) for 36 h completely prevented inf...

journal_title：Phytopathology

authors： Sauerborn J,Buschmann H,Ghiasi KG,Kogel KH

更新日期：2002-01-01 00:00:00

abstract：:ABSTRACT Pear blossoms were sampled during various stages of bloom in 1991 and 1992 from orchards at Cashmere, WA, and Corvallis and Medford, OR, for epiphytic populations of culturable bacteria. On stigmatic surfaces, bacteria were isolated from 2 to 32% of blossoms prior to petal expansion and from 47 to 94% of blos...

journal_title：Phytopathology

authors： Stockwell VO,McLaughlin RJ,Henkels MD,Loper JE,Sugar D,Roberts RG

更新日期：1999-12-01 00:00:00

abstract：:Ampelomyces quisqualis is a mycoparasite of a diverse range of phytopathogenic fungi associated with the powdery mildew disease. Among them are several Erysiphaceae species with great economic impact on high-value crops such as grape. Due to its ability to parasitize and prevent the spread of powdery mildews, A. quisq...

journal_title：Phytopathology

authors： Siozios S,Tosi L,Ferrarini A,Ferrari A,Tononi P,Bellin D,Maurhofer M,Gessler C,Delledonne M,Pertot I

更新日期：2015-02-01 00:00:00

abstract：:ABSTRACT A simple model has been developed to predict the onset of pseudothecia maturity and seasonal ascospore showers in relation to blackleg disease in canola, caused by the fungus Leptosphaeria maculans. The model considers a combination of two weather factors, daily mean temperature and daily total rainfall, to d...

journal_title：Phytopathology

authors： Salam MU,Khangura RK,Diggle AJ,Barbetti MJ

更新日期：2003-09-01 00:00:00

abstract：:In this study, we investigated whether fungicide-induced mutagenesis previously reported in Monilinia fructicola could accelerate genetic changes in field populations. Azoxystrobin and propiconazole were applied to nectarine trees at weekly intervals for approximately 3 months between bloom and harvest in both 2013 an...

journal_title：Phytopathology

authors： Dowling ME,Bryson PK,Boatwright HG,Wilson JR,Fan Z,Everhart SE,Brannen PM,Schnabel G

更新日期：2016-12-01 00:00:00

abstract：:ABSTRACT A 3.3-kb fragment of genomic DNA from bacteriophage Phi-Ea1h encoding an amylovoran-directed depolymerase lyase was sequenced, and three open reading frames (ORFs) were detected. The first ORF could encode a lysozyme and the second a holin that may form a pore supporting cell lysis by the lysozyme. The third ...

journal_title：Phytopathology

authors： Kim WS,Geider K

更新日期：2000-11-01 00:00:00

abstract：:ABSTRACT The potential for outcrossing, occurrence of oospores, and inheritance of mefenoxam sensitivity was assessed in naturally occurring populations of Phytophthora capsici. Between 1997 and 1998, 14 farms were sampled, with 473 isolates recovered from cucurbit hosts and 30 from bell pepper. The A1 and A2 compatib...

journal_title：Phytopathology

authors： Lamour KH,Hausbeck MK

更新日期：2000-04-01 00:00:00

abstract：:A well-studied severe isolate of Citrus tristeza virus (CTV) known as SY568 has previously been shown to contain multiple variants of the virus which differ in their genetic and biological characters. Aphid transmission was used in an attempt to segregate some of these variants for further characterization. Resulting ...

journal_title：Phytopathology

authors： Velazquez-Monreal JJ,Mathews DM,Dodds JA

更新日期：2009-10-01 00:00:00

abstract：:To support the search for alternative, non-chemical plant disease control strategies, we present a review of the pathogen-suppressive effects of biochar, a product derived from agricultural and other organic wastes, used as a soil amendment. A wide range of biochar effects contribute to the control of root or foliar f...

journal_title：Phytopathology

authors： Poveda J,Martínez Gómez Á,Fenoll C,Escobar C

更新日期：2021-02-02 00:00:00

abstract：:The root-knot nematode, Meloidogyne incognita, is among the most damaging agricultural pests, particularly to tomato. The mutualistic endophytes Fusarium oxysporum strain Fo162 (Fo162) and Rhizobium etli strain G12 (G12) have been shown to systemically induce resistance toward M. incognita. By using triple-split-root ...

journal_title：Phytopathology

authors： Martinuz A,Schouten A,Sikora RA

更新日期：2012-03-01 00:00:00

abstract：:The obligate biotrophic chytrid species Synchytrium endobioticum is the causal agent of potato wart disease. Currently, 39 pathotypes have been described based on their interaction with a differential set of potato varieties. Wart resistance and pathotyping is performed using bioassays in which etiolated tuber sprouts...

journal_title：Phytopathology

authors： van de Vossenberg BTLH,van Gent-Pelzer MPE,Boerma M,van der Gouw LP,van der Lee TAJ,Vossen JH

更新日期：2019-06-01 00:00:00

abstract：:ABSTRACT Fifty-one isolates representing the four Botrytis spp. associated with onion neck rot were clustered by unweighted pair group method with arithmetic mean based on universal-primed polymerase chain reaction (UP-PCR) fingerprints. Bootstrap analysis of the consensus phenogram clearly demonstrated five strong cl...

journal_title：Phytopathology

authors： Nielsen K,Justesen AF,Jensen DF,Yohalem DS

更新日期：2001-06-01 00:00:00

abstract：:ABSTRACT Crown rust (Puccinia coronata) in indigenous populations of Avena sterilis has been cited as an example of stability of wild pathosystems that consist of natural mixtures of resistance and virulence. This study confirmed that virulence/avirulence polymorphisms in P. coronata on A. sterilis in Israel are highl...

journal_title：Phytopathology

authors： Leonard KJ,Anikster Y,Manisterski J

更新日期：2004-05-01 00:00:00

abstract：:Success in biological control of plant diseases remains inconsistent in the field. A collection of well-characterized Streptomyces antagonists (n = 19 isolates) was tested for their capacities to inhibit pathogenic Streptomyces scabies (n = 15 isolates). There was significant variation among antagonists in ability to ...

journal_title：Phytopathology

authors： Otto-Hanson LK,Grabau Z,Rosen C,Salomon CE,Kinkel LL

更新日期：2013-01-01 00:00:00

abstract：:ABSTRACT Sugarcane striate mosaic (ScSM)-affected sugarcane leaves contain a disease-associated 9-kilobase (kb) double-stranded RNA (dsRNA), usually together with 6- and 2.6-kb dsRNAs. The purified 9-kb dsRNA was amplified by the randomly primed polymerase chain reaction (PCR) and cloned. The nucleotide sequences of t...

journal_title：Phytopathology

authors： Choi YG,Croft BJ,Randles JW

更新日期：1999-10-01 00:00:00

abstract：:As the causal agent of late blight on potato, Phytophthora infestans is one of the most destructive plant pathogens worldwide and widely known as the Irish potato famine pathogen. Understanding the genetic structure of P. infestans populations is important both for breeding and deployment of resistant varieties and fo...

journal_title：Phytopathology

authors： Tian Y,Yin J,Sun J,Ma H,Ma Y,Quan J,Shan W

更新日期：2015-06-01 00:00:00

abstract：:Citrus canker, caused by Xanthomonas citri ssp. citri, is a serious disease that causes substantial economic losses to the citrus industry worldwide. The bactericide bismerthiazol has been used to control rice bacterial blight (X. oryzae pv. oryzae). In this paper, we demonstrate that bismerthiazol can effectively con...

journal_title：Phytopathology

authors： Yu X,Armstrong CM,Zhou M,Duan Y

更新日期：2016-07-01 00:00:00

abstract：:Soybean rust, caused by the fungus Phakopsora pachyrhizi, is an economically important disease of soybean with potential to cause severe epidemics resulting in significant yield losses. Host resistance is one of the management tools to control this disease. This study compared soybean genotypes exhibiting immunity, co...

journal_title：Phytopathology

authors： Vittal R,Paul C,Hill CB,Hartman GL

更新日期：2014-01-01 00:00:00

abstract：:Triticum pathotype (MoT) of Magnaporthe oryzae (syn. Pyricularia oryzae) causes wheat blast, which has recently spread to Asia. To assess the potential risk of wheat blast in rice-wheat growing regions, we investigated the pathogenicity of 14 isolates of P. oryzae on 32 wheat cultivars, among which MoO isolates were c...

journal_title：Phytopathology

authors： Wang S,Wang J,Zhang Z,Hao Z,Zhu X,Wang Y,Lin F,Sun G

更新日期：2021-01-20 00:00:00

abstract：:Maize production in sub-Saharan Africa incurs serious losses to epiphytotics of foliar diseases. Quantitative trait loci conditioning partial resistance (rQTL) to infection by causal agents of gray leaf spot (GLS), northern corn leaf blight (NCLB), and maize streak have been reported. Our objectives were to identify s...

journal_title：Phytopathology

authors： Asea G,Vivek BS,Bigirwa G,Lipps PE,Pratt RC

更新日期：2009-05-01 00:00:00

abstract：:There is increasing use of networks in ecology and epidemiology, but still relatively little application in phytopathology. Networks are sets of elements (nodes) connected in various ways by links (edges). Network analysis aims to understand system dynamics and outcomes in relation to network characteristics. Many exi...

journal_title：Phytopathology

authors： Moslonka-Lefebvre M,Finley A,Dorigatti I,Dehnen-Schmutz K,Harwood T,Jeger MJ,Xu X,Holdenrieder O,Pautasso M

更新日期：2011-04-01 00:00:00

abstract：:Tomato chlorosis virus (ToCV), and Tomato infectious chlorosis virus (TICV), family Closteroviridae, genus Crinivirus, cause interveinal chlorosis, leaf brittleness, and limited necrotic flecking or bronzing on tomato leaves. Both viruses cause a decline in plant vigor and reduce fruit yield, and are emerging as serio...

journal_title：Phytopathology

authors： Wintermantel WM,Cortez AA,Anchieta AG,Gulati-Sakhuja A,Hladky LL

更新日期：2008-12-01 00:00:00

abstract：:Yellows diseases, caused by phytopathogenic bacteria of the genus Phytoplasma, are a major threat to grapevines worldwide. Because conventional applications against this pathogen are inefficient and disease management is highly challenging, the use of beneficial bacteria has been suggested as a biocontrol solution. A ...

journal_title：Phytopathology

authors： Iasur-Kruh L,Zahavi T,Barkai R,Freilich S,Zchori-Fein E,Naor V

更新日期：2018-03-01 00:00:00

abstract：:Rice blast is one of the most damaging diseases of rice worldwide. In the present study, we analyzed DNA sequence variation of avirulence (AVR) genes of AVR-Pita1 in field isolates of Magnaporthe oryzae in order to understand the effectiveness of the resistance gene Pi-ta in China. Genomic DNA of 366 isolates of M. or...

journal_title：Phytopathology

authors： Li J,Lu L,Jia Y,Li C

更新日期：2014-07-01 00:00:00