Results 21 to 30 of about 5,613,148 (257)

Development and validation of diagnostic SNP markers for quality control genotyping in a collection of four rice (Oryza) species

open access: yesScientific Reports, 2021
Morphological identification of closely related rice species, particularly those in the Oryza AA genome group, presents major challenges and often results in cases of misidentification.
Arnaud Comlan Gouda   +6 more
doaj   +1 more source

The role of effectors in nonhost resistance to filamentous plant pathogens [PDF]

open access: yes, 2014
In nature, most plants are resistant to a wide range of phytopathogens. However, mechanisms contributing to this so-called nonhost resistance (NHR) are poorly understood.
McLellan, Hazel   +11 more
core   +1 more source

Aflatoxin Accumulation in a Maize Diallel Cross

open access: yesAgriculture, 2015
Aflatoxins, produced by the fungus Aspergillus flavus, occur naturally in maize. Contamination of maize grain with aflatoxin is a major food and feed safety problem and greatly reduces the value of the grain.
W. Paul Williams, Gary L. Windham
doaj   +1 more source

A spotlight on non-host resistance to plant viruses [PDF]

open access: yesPeerJ, 2022
Plant viruses encounter a range of host defenses including non-host resistance (NHR), leading to the arrest of virus replication and movement in plants. Viruses have limited host ranges, and adaptation to a new host is an atypical phenomenon.
Avanish Rai   +2 more
doaj   +2 more sources

Comparison of Two Inoculation Methods for Evaluating Maize for Resistance to Aspergillus flavus Infection and Aflatoxin Accumulation

open access: yesInternational Journal of Agronomy, 2013
Aflatoxin, the most potent carcinogen found in nature, is produced by the fungus Aspergillus flavus and occurs naturally in maize, Zea mays L. Growing maize hybrids with genetic resistance to aflatoxin contamination are generally considered a highly ...
W. Paul Williams   +4 more
doaj   +1 more source

Identification and Quantification of a Toxigenic and Non-Toxigenic Aspergillus flavus Strain in Contaminated Maize Using Quantitative Real-Time PCR

open access: yesToxins, 2016
Aflatoxins, which are produced by Aspergillus flavus, are toxic to humans, livestock, and pets. The value of maize (Zea mays) grain is markedly reduced when contaminated with aflatoxin.
J. Erik Mylroie   +5 more
doaj   +1 more source

Differential Expression of Signaling Pathway Genes Associated With Aflatoxin Reduction Quantitative Trait Loci in Maize (Zea mays L.)

open access: yesFrontiers in Microbiology, 2019
The roles of signaling pathway genes related to the aflatoxin reduction trait in maize were studied for the improvement of maize resistance to the fungal pathogen Aspergillus flavus (A. flavus). In this study, 55 maize genes in plant–pathogen interaction
Felicia Parish   +3 more
doaj   +1 more source

Low Aflatoxin Levels in Aspergillus flavus-Resistant Maize Are Correlated With Increased Corn Earworm Damage and Enhanced Seed Fumonisin

open access: yesFrontiers in Plant Science, 2020
Preharvest mycotoxin contamination of field-grown crops is influenced not only by the host genotype, but also by inoculum load, insect pressure and their confounding interactions with seasonal weather.
Subbaiah Chalivendra   +4 more
doaj   +1 more source

The phenotypic expression of QTLs for partial resistance to barley leaf rust during plant development [PDF]

open access: yes, 2010
Partial resistance is generally considered to be a durable form of resistance. In barley, Rphq2, Rphq3 and Rphq4 have been identified as consistent quantitative trait loci (QTLs) for partial resistance to the barley leaf rust pathogen Puccinia hordei ...
Qi, Xiaoquan   +7 more
core   +1 more source

Multiple avirulence paralogues in cereal powdery mildew fungi may contribute to parasite fitness and defeat of plant resistance [PDF]

open access: yes, 2006
Powdery mildews, obligate biotrophic fungal parasites on a wide range of important crops, can be controlled by plant resistance (R) genes, but these are rapidly overcome by parasite mutants evading recognition.
Porritt, Oliver   +11 more
core   +1 more source

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