Results 41 to 50 of about 18,513 (213)

Infection of Phytophthora Palmivora From Soil in Cocoa Plantation [PDF]

open access: yes, 2008
Phytophthora palmivora causes serious losses on cocoa in Indonesia and world-wide. The research aimed to assess the potential of soil as source of inocula for Phytophthora diseases in cocoa.
Purwantara, A. (Agus)
core   +3 more sources

The potato cyst nematode Globodera pallida overcomes major potato resistance through selection on standing variation at a single locus

open access: yesNew Phytologist, EarlyView.
Summary Globodera pallida poses a major threat to potato production, with management strategies primarily relying on genetic resistance. However, increasing virulence in field populations across Western Europe raises major concerns for G. pallida control.
Arno S. Schaveling   +8 more
wiley   +1 more source

Root and crown tot of olive caused dy Phytophthora spp. [PDF]

open access: yes, 2011
Phytophthora root and crown rot has been traditionally considered a minor disease of olive. However, in recent years it has been recognized as an emerging problem in several olive-growing countries such as Australia, Italy and Spain probably as a ...
Cacciola, SO   +3 more
core  

Pourriture phytophthoréenne de la luzerne au Québec : distribution géographique des symptômes et étude des facteurs édaphiques pouvant favoriser leur expression [PDF]

open access: yes, 1991
Nous avons observé chez la luzerne (Medicago sativa) des symptômes attribuables à la pourriture phytophthoréenne (Phytophthora megasperma f. sp. medicaginis) dans les 12 régions agricoles du Québec, avec une présence plus marquée dans l'Outaouais, la ...
Martin, J.-G., Richard, C.
core   +1 more source

Reduced Susceptibility to Phytophthora in Non‐Transgenic Cacao Progeny Through CRISPR–Cas9 Mediated TcNPR3 Mutagenesis

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Black pod disease, caused by a complex of Phytophthora species, poses a severe threat to global cacao production. This study explores the use of CRISPR–Cas9 genome editing to reduce disease susceptibility in Theobroma cacao L. by targeting the TcNPR3 gene, a known negative regulator of plant defence.
Mark J. Guiltinan   +5 more
wiley   +1 more source

Rhizosphere and Root Community Analysis of Oomycetes Associated with Poor Alfalfa (Medicago sativa) Seedling Establishment

open access: yesPhytobiomes Journal, 2023
Alfalfa (Medicago sativa) seeds planted in cold, wet soil are prone to seed rot, pre- and postemergence damping-off, and seedling root rot. These diseases reduce initial stand density and affect forage yields and winter survival when root systems are ...
Leta J. Larsen   +4 more
doaj   +1 more source

Effector‐Mediated Spatial Reprogramming of Glycolate Oxidase Subverts Peroxisomal and Membrane‐Associated ROS Defences

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Oomycete pathogens secrete hundreds of RXLR effectors into plant cells to modulate host immunity by targeting diverse plant proteins. Here, we report that the Peronophythora litchii RXLR effector PlAvh133 acts as a virulence factor and targets the litchi glycolate oxidase (GLO) LcGLO1, a key enzyme in photorespiration, thereby suppressing ...
Junjian Situ   +15 more
wiley   +1 more source

Populations of Phytophthora sojae are diverse within single fields [PDF]

open access: yes, 2007
Phytophthora root and stem rot of soybean (PRR), caused by Phytophthora sojae, is well known to Iowa growers. The disease occurs throughout the growing season when soil temperatures are above 70 °F and especially following episodes of heavy rain.
Cerra, Sarah   +3 more
core   +2 more sources

WRKY Transcription Factors: Integral Regulators of Defence Responses to Biotic Stress in Crops

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Crops are continually challenged by biotic stresses, including fungal, bacterial and viral pathogens and insect pests, which cause substantial yield and quality losses worldwide. WRKY transcription factors constitute a plant‐specific and functionally diverse family that is central to immune regulation.
Dongjiao Wang   +8 more
wiley   +1 more source

Preliminary Findings of New Citrus Rootstocks Potentially Tolerant to Foot Rot Caused by Phytophthora

open access: yesHorticulturae, 2021
Phytophthora spp. are one the most common soil-borne pathogens in citrus crops, in which Phytophthoranicotianae and P. citrophthora are the most relevant species, causing disease problems worldwide, such as foot rot and gummosis of the trunk, branch ...
Lidia Aparicio-Durán   +4 more
doaj   +1 more source

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