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Tissue-specific localization of pea root infection by Nectria haematococca. Mechanisms and consequences.
Gunawardena U
,
Rodriguez M
,
Straney D
,
Romeo JT
,
VanEtten HD
,
Hawes MC
.
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Root infection in susceptible host species is initiated predominantly in the zone of elongation, whereas the remainder of the root is resistant. Nectria haematococca infection of pea (Pisum sativum) was used as a model to explore possible mechanisms influencing the localization of root infection. The failure to infect the root tip was not due to a failure to induce spore germination at this site, suppression of pathogenicity genes in the fungus, or increased expression of plant defense genes. Instead, exudates from the root tip induce rapid spore germination by a pathway that is independent of nutrient-induced germination. Subsequently, a factor produced during fungal infection and death of border cells at the root apex appears to selectively suppress fungal growth and prevent sporulation. Host-specific mantle formation in response to border cells appears to represent a previously unrecognized form of host-parasite relationship common to diverse species. The dynamics of signal exchange leading to mantle development may play a key role in fostering plant health, by protecting root meristems from pathogenic invasion.
Arriola,
Border cells and arbuscular mycorrhizae in four amaranthaceae species.
1997, Pubmed
Arriola,
Border cells and arbuscular mycorrhizae in four amaranthaceae species.
1997,
Pubmed
Baluska,
Specialized zones of development in roots: view from the cellular level.
1996,
Pubmed
Brigham,
Meristem-specific suppression of mitosis and a global switch in gene expression in the root cap of pea by endogenous signals.
1998,
Pubmed
Chang,
Molecular cloning and characterization of a pea chitinase gene expressed in response to wounding, fungal infection and the elicitor chitosan.
1995,
Pubmed
Cooper,
Localized Changes in Flavonoid Biosynthesis in Roots of Lotus pedunculatus after Infection by Rhizobium loti.
1992,
Pubmed
Dunn,
Use of a promoter trap to identify Bacillus cereus genes regulated by tomato seed exudate and a rhizosphere resident, Pseudomonas aureofaciens.
2003,
Pubmed
Endre,
A receptor kinase gene regulating symbiotic nodule development.
2002,
Pubmed
Funnell,
Breeding for Highly Fertile Isolates of Nectria haematococca MPVI that are Highly Virulent on Pea and In Planta Selection for Virulent Recombinants.
2001,
Pubmed
,
Echinobase
Funnell,
Identification of new pisatin demethylase genes (PDA5 and PDA7) in Nectria haematococca and non-Mendelian segregation of pisatin demethylating ability and virulence on pea due to loss of chromosomal elements.
2002,
Pubmed
,
Echinobase
García-Garrido,
Regulation of the plant defence response in arbuscular mycorrhizal symbiosis.
2002,
Pubmed
Gilbert,
Use of Cluster and Discriminant Analyses to Compare Rhizosphere Bacterial Communities Following Biological Perturbation.
1996,
Pubmed
Graham,
Flavonoid and isoflavonoid distribution in developing soybean seedling tissues and in seed and root exudates.
1991,
Pubmed
Gunawardena,
Tissue specific localization of root infection by fungal pathogens: role of root border cells.
2002,
Pubmed
,
Echinobase
Han,
Genes determining pathogenicity to pea are clustered on a supernumerary chromosome in the fungal plant pathogen Nectria haematococca.
2001,
Pubmed
,
Echinobase
Hawes,
Function of root border cells in plant health: pioneers in the rhizosphere.
1998,
Pubmed
Hawes,
The role of root border cells in plant defense.
2000,
Pubmed
Hirsch,
Signal Transduction Pathways in Mycorrhizal Associations: Comparisons with the Rhizobium-Legume Symbiosis.
1998,
Pubmed
Hsieh,
Partial purification and characterization of a soybean beta-glucosidase with high specific activity towards isoflavone conjugates.
2001,
Pubmed
Knee,
Root mucilage from pea and its utilization by rhizosphere bacteria as a sole carbon source.
2001,
Pubmed
Lagopodi,
Novel aspects of tomato root colonization and infection by Fusarium oxysporum f. sp. radicis-lycopersici revealed by confocal laser scanning microscopic analysis using the green fluorescent protein as a marker.
2002,
Pubmed
Leemhuis,
The protein kinase A inhibitor H89 acts on cell morphology by inhibiting Rho kinase.
2002,
Pubmed
Limpens,
Signaling in symbiosis.
2003,
Pubmed
Logemann,
Gene activation by UV light, fungal elicitor or fungal infection in Petroselinum crispum is correlated with repression of cell cycle-related genes.
1995,
Pubmed
Loh,
Quorum sensing in plant-associated bacteria.
2002,
Pubmed
Loh,
Bradyoxetin, a unique chemical signal involved in symbiotic gene regulation.
2002,
Pubmed
Maxwell,
Concurrent Synthesis and Release of nod-Gene-Inducing Flavonoids from Alfalfa Roots.
1990,
Pubmed
Nagahashi,
Isolated root caps, border cells, and mucilage from host roots stimulate hyphal branching of the arbuscular mycorrhizal fungus, Gigaspora gigantea.
2004,
Pubmed
Nair,
Isolation and Identification of Vesicular-Arbuscular Mycorrhiza-Stimulatory Compounds from Clover (Trifolium repens) Roots.
1991,
Pubmed
Nelson,
Microbial dynamics and interactions in the spermosphere.
2004,
Pubmed
Peters,
Alfalfa Root Exudates and Compounds which Promote or Inhibit Induction of Rhizobium meliloti Nodulation Genes.
1988,
Pubmed
Phillips,
Microbial products trigger amino acid exudation from plant roots.
2004,
Pubmed
Recourt,
Major flavonoids in uninoculated and inoculated roots of Vicia sativa subsp. nigra are four conjugates of the nodulation gene-inhibitor kaempferol.
1992,
Pubmed
Rodríguez-Gálvez,
Cell wall synthesis in cotton roots after infection with Fusarium oxysporum. The deposition of callose, arabinogalactans, xyloglucans, and pectic components into walls, wall appositions, cell plates and plasmodesmata.
1995,
Pubmed
Roth,
Fluorescence reaction for amino acids.
1971,
Pubmed
Smith,
Genetic basis in plants for interactions with disease-suppressive bacteria.
1999,
Pubmed
Straney,
Characterization of the PDA1 promoter of Nectria haematococca and identification of a region that binds a pisatin-responsive DNA binding factor.
1994,
Pubmed
,
Echinobase
Syin,
The H89 cAMP-dependent protein kinase inhibitor blocks Plasmodium falciparum development in infected erythrocytes.
2001,
Pubmed
Teplitski,
Plants secrete substances that mimic bacterial N-acyl homoserine lactone signal activities and affect population density-dependent behaviors in associated bacteria.
2000,
Pubmed
Tsai,
Flavonoids released naturally from alfalfa promote development of symbiotic glomus spores in vitro.
1991,
Pubmed
Tsanuo,
Isoflavanones from the allelopathic aqueous root exudate of Desmodium uncinatum.
2003,
Pubmed
Vermeer,
The rhizosphere in Zea: new insight into its structure and development.
1982,
Pubmed
Woo,
Altered susceptibility to infection by Sinorhizobium meliloti and Nectria haematococca in alfalfa roots with altered cell cycle.
2004,
Pubmed
,
Echinobase
Zhu,
Induction of microbial genes for pathogenesis and symbiosis by chemicals from root border cells.
1997,
Pubmed
van Brussel,
A biovar-specific signal of Rhizobium leguminosarum bv. viciae induces increased nodulation gene-inducing activity in root exudate of Vicia sativa subsp. nigra.
1990,
Pubmed