Cacao diseases: a global perspective from an industry point of view.

abstract：:ABSTRACT Natural potato late blight epidemics were studied to assess the relative impact of various inoculum sources of Phytophthora infestans in Southern Flevoland (the Netherlands) from 1994 through 1996. Disease surveys were combined with characterization of isolates for mating type and DNA fingerprint pattern usin...

journal_title：Phytopathology

authors： Zwankhuizen MJ,Govers F,Zadoks JC

更新日期：1998-08-01 00:00:00

abstract：:ABSTRACT The potential enhancement of Candida sake (CPA-1) by ammonium molybdate to control blue and gray mold caused by Penicillium expansum and Botrytis cinerea, respectively, on Blanquilla pears was investigated. In laboratory trials, improved control of blue and gray molds was obtained with the application of ammo...

journal_title：Phytopathology

authors： Nunes C,Usall J,Teixidó N,Abadias M,Viñas I

更新日期：2002-03-01 00:00:00

abstract：:ABSTRACT Temperature is a critical factor in plant disease development. As part of a research program to determine how specific environmental variables affect soybean rust, we determined temperature effects on urediniospore germination and germ tube growth of four isolates of Phakopsora pachyrhizi, one each from Brazi...

journal_title：Phytopathology

authors： Bonde MR,Berner DK,Nester SE,Frederick RD

更新日期：2007-08-01 00:00:00

abstract：:ABSTRACT Fusarium head blight (FHB) is a devastating disease that causes significant reductions in yield and quality in wheat and barley. Barley grains infected with deoxynivalenol (DON), a vomitoxin produced by Fusarium graminearum, are rejected for malting and brewing. Among six-rowed barley cultivars tested thus fa...

journal_title：Phytopathology

authors： Ma Z,Steffenson BJ,Prom LK,Lapitan NL

更新日期：2000-10-01 00:00:00

abstract：:The importance of sexual recombination in determining fungal population structure cannot be inferred solely from the relative abundance of sexual and asexual spores and reproductive structures. To complement a previously reported study of proportions of Mycosphaerella graminicola ascocarps and pycnidia, we investigate...

journal_title：Phytopathology

authors： Cowger C,Brunner PC,Mundt CC

更新日期：2008-07-01 00:00:00

abstract：:Chlorotic streak is a global disease of commercial sugarcane (Saccharum spp. hybrids). The disease is transmitted by wet soil, water, as well as in diseased planting material. Although first recognized almost 90 years ago and despite significant research effort, the identity of the causal agent has been elusive. Metag...

journal_title：Phytopathology

authors： Ngo CN,Braithwaite KS,Bass D,Young AJ,Croft BJ

更新日期：2018-04-01 00:00:00

abstract：:ABSTRACT Xanthomonas axonopodis pv. glycines is the causal agent of bacterial pustule disease of soybeans. A transposon insertional mutant (KU-P-M670) of X. axonopodis pv. glycines derived from wild-type strain KU-P-34017 lost the ability to induce the hypersensitive response (HR) on tobacco and pepper but retained it...

journal_title：Phytopathology

authors： Kaewnum S,Prathuangwong S,Burr TJ

更新日期：2006-11-01 00:00:00

abstract：:Stripe rust is a major disease constraint of wheat production worldwide. Resistance to stripe rust was analyzed using 131 F6 recombinant inbred lines (RILs) derived from a cross between synthetic derived wheat line Soru#1 and wheat cultivar Naxos. The phenotype was evaluated in Mexico and Norway at both seedling and a...

journal_title：Phytopathology

authors： Zhang R,Singh RP,Lillemo M,He X,Randhawa MS,Huerta-Espino J,Singh PK,Li Z,Lan C

更新日期：2019-01-01 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：:ABSTRACT Alternaria alternata is the causal organism of core rot decay symptoms in susceptible cv. Red Delicious but not in resistant cv. Golden Delicious. The two cultivars did not differ in natural colonization of the style and ovary during the first week after full bloom; colonization of the ovary in the susceptibl...

journal_title：Phytopathology

authors： Niem J,Miyara I,Ettedgui Y,Reuveni M,Flaishman M,Prusky D

更新日期：2007-11-01 00:00:00

abstract：:Potato genotypes from a breeding population adapted to tropical highlands were analyzed for the stability of late blight resistance and also for marker-phenotype association. We harmonized the historical evaluation data, consisting of observations spanning 6 years from two field sites utilizing a resistance scale cons...

journal_title：Phytopathology

authors： Lindqvist-Kreuze H,Gastelo M,Perez W,Forbes GA,de Koeyer D,Bonierbale M

更新日期：2014-06-01 00:00:00

abstract：:ABSTRACT Fusarium fungi, including F. culmorum, cause seedling blight, foot rot, and head blight diseases of cereals, resulting in yield loss. In a screen for potential disease control organisms and agents, Pseudomonas fluorescens strains MKB 100 and MKB 249, P. frederiksbergensis strain 202, Pseudomonas sp. strain MK...

journal_title：Phytopathology

authors： Khan MR,Fischer S,Egan D,Doohan FM

更新日期：2006-04-01 00:00:00

abstract：:Lysobacter enzymogenes strain C3 (LeC3) is a potential biocontrol agent for plant diseases caused by fungi and oomycetes. Understanding the interaction between LeC3 and soybean pathogens at the molecular level could help improve its biocontrol efficacy. In this study, we obtained mutants with decreased abilities in in...

journal_title：Phytopathology

authors： Yu M,Zhang G,Jiang J,Du L,Zhao Y

更新日期：2020-03-01 00:00:00

abstract：:The ability to develop fungicide resistance was assessed in Monilinia fructicola isolates with different fungicide sensitivity phenotypes by adapting mycelium and conidia to increasing concentrations of selective fungicides and UV mutagenesis. Results showed that adaptation to Quinone outside inhibitor (QoI) fungicide...

journal_title：Phytopathology

authors： Luo CX,Schnabel G

更新日期：2008-02-01 00:00:00

abstract：:ABSTRACT Genetic variation within a worldwide collection of 208 isolates of Fu-sarium oxysporum f. sp. cubense, representing physiological races 1, 2, 3, and 4 and the 20 reported vegetative compatibility groups (VCGs), was analyzed using modified DNA amplification fingerprinting. Also characterized were 133 isolates ...

journal_title：Phytopathology

authors： Bentley S,Pegg KG,Moore NY,Davis RD,Buddenhagen IW

更新日期：1998-12-01 00:00:00

abstract：:In this study, spatial analyses were conducted at three different scales to better understand the epidemiology of rice blast, a major rice disease caused by Magnaporthe oryzae. At the regional scale, across the major rice production regions in China, rice blast incidence was monitored on 101 dates at 193 stations from...

journal_title：Phytopathology

authors： Guo F,Chen X,Lu M,Yang L,Wang S,Wu BM

更新日期：2018-11-01 00:00:00

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：:Downy mildew of grape caused by Plasmopara viticola is a global pathogen of economic importance to commercial viticulture. In contrast to populations in the northern hemisphere, few studies have investigated the population biology, genetic diversity, and origin of the pathogen in Australian production systems. DNA was...

journal_title：Phytopathology

authors： Taylor AS,Knaus BJ,Grünwald NJ,Burgess T

更新日期：2019-11-01 00:00:00

abstract：:ABSTRACT Citrus Huanglongbing (HLB) is one of the most devastating diseases of citrus worldwide. The causal agent of HLB in Florida is thought to be 'Candidatus Liberibacter asiaticus'. In this work, we examined the responses of 30 different genotypes of citrus to Florida isolates of 'Ca. L. asiaticus' under controlle...

journal_title：Phytopathology

authors： Folimonova SY,Robertson CJ,Garnsey SM,Gowda S,Dawson WO

更新日期：2009-12-01 00:00:00

abstract：:The pathogen that causes Pierce's disease of grapevine, Xylella fastidiosa, is the only known bacterial, arthropod-transmitted plant pathogen that does not circulate in the vector's hemolymph. Instead, bacteria are foregut-borne, persistent in adult vectors but semipersistent in immatures (i.e., bacteria colonize cuti...

journal_title：Phytopathology

authors： Backus EA,Morgan DJ

更新日期：2011-08-01 00:00:00

abstract：:ABSTRACT Vegetative compatibility has been used to assess the population biology of many fungal plant pathogens. However, for many species, including Fusarium graminearum, this has meant making auxotrophic mutants to force heterokaryon formation. A method was developed to observe barrage zones of thick, raised myceliu...

journal_title：Phytopathology

authors： McCallum BD,Tekauz A,Gilbert J

更新日期：2004-05-01 00:00:00

abstract：:It is well described that viral infections stimulate the emission of plant volatiles able to recruit viral vectors thereby promoting virus spread. In contrast, much less is known on the effects that emitted volatiles may have on the metabolism of healthy neighboring plants, which are potential targets for new infectio...

journal_title：Phytopathology

authors： López-Berenguer C,Donaire L,Gonzalez-Ibeas D,Gómez-Aix C,Truniger V,Pechar GS,Aranda MA

更新日期：2020-12-01 00:00:00

abstract：:Growth chamber and field studies were conducted with organic amendment mixtures of carbon (C) and nitrogen (N) at C:N ratios 10:1, 20:1, 30:1, and 40:1 and amendment rates of C at 2, 4, 6, and 8 mg/g of soil (C:N ratio 30:1) to evaluate anaerobic soil disinfestation (ASD) effects on germination and colonization of Scl...

journal_title：Phytopathology

authors： Shrestha U,Dee ME,Ownley BH,Butler DM

更新日期：2018-03-01 00:00:00

abstract：:Verticillium dahliae is a soilborne fungal pathogen affecting many economically important crops that can also infect weeds and rotational crops with no apparent disease symptoms. The main research goal was to test the hypothesis that V. dahliae populations recovered from asymptomatic rotational crops and weed species ...

journal_title：Phytopathology

authors： Bautista-Jalón LS,Frenkel O,Tsror Lahkim L,Malcolm GM,Gugino BK,Lebiush S,Hazanovsky M,Milgroom MG,Del Mar Jiménez-Gasco M

更新日期：2021-01-01 00:00:00

abstract：:Soybean vein necrosis-associated virus has been linked to an emerging soybean disease in the United States and Canada. Virus distribution and population structure in major growing areas were evaluated. Data were employed to design and develop sensitive detection protocols, able to detect all virus isolates available i...

journal_title：Phytopathology

authors： Zhou J,Tzanetakis IE

更新日期：2013-09-01 00:00:00

abstract：:ABSTRACT Twenty-one strains of Botrytis cinerea isolated from 13 species of plants grown in China were compared for pathogenicity on Brassica napus, mycelial growth on potato dextrose agar, and presence of double-stranded (ds)RNA. The results showed that the strain CanBc-1 was severely debilitated in pathogenicity and...

journal_title：Phytopathology

authors： Wu MD,Zhang L,Li GQ,Jiang DH,Hou MS,Huang HC

更新日期：2007-12-01 00:00:00

abstract：:ABSTRACT Double-stranded RNA (dsRNA) was purified from grapevines infected with grapevine leafroll-associated viruses 4 (GLRaV-4) and 5 (GLRaV-5), two putative closteroviruses. Reverse-transcriptase polymerase chain reaction (RT-PCR) was performed on this dsRNA using degenerate oligonucleotides designed to amplify an ...

journal_title：Phytopathology

authors： Routh G,Zhang YP,Saldarelli P,Rowhani A

更新日期：1998-11-01 00:00:00

abstract：:A polymerase chain reaction (PCR)-based method was developed for the detection of phytoplasma in insect feeding medium (sucrose). A correlation was established between the transmissibility of Flavescence dorée phytoplasma in the experimental leafhopper vector Euscelidius variegatus and its detection by PCR in the inse...

journal_title：Phytopathology

authors： Tanne E,Boudon-Padieu E,Clair D,Davidovich M,Melamed S,Klein M

更新日期：2001-08-01 00:00:00

abstract：:Tomato is an economic crop worldwide. Many limiting factors reduce the production of tomato, with bacterial wilt caused by Ralstonia solanacearum being the most destructive disease. Our previous study showed that the disease resistance to bacterial soft rot is enhanced by Bacillus amyloliquefaciens strain PMB05. This ...

journal_title：Phytopathology

authors： Ho TH,Chuang CY,Zheng JL,Chen HH,Liang YS,Huang TP,Lin YH

更新日期：2020-12-01 00:00:00

abstract：:ABSTRACT Tomato race 3 (T3) strains of Xanthomonas campestris pv. vesicatoria are antagonistic in vitro to tomato race 1 (T1) strains of the bacterium. All T1 strains and 11 strains of other X. campestris pathovars tested were inhibited by T3 strains. Sensitivity of tomato race 2 (T2) strains was variable. No strains ...

journal_title：Phytopathology

authors： Tudor-Nelson SM,Minsavage GV,Stall RE,Jones JB

更新日期：2003-11-01 00:00:00