Non-oak native plants are main hosts for sudden oak death pathogen in California

By M. Garbelotto, J. Davidson, K. Ivors, P. Maloney, D. Hüberli, S. Koike, David M. Rizzo. 2003

125 citations recorded by the source corpus.

The finding of Phytophthora ramorum — the pathogen that causes sudden oak death in four California native trees — on rhododendron in Europe led us to hypothesize that its host range in California's natural forests was much greater than previously suspected. In addition to the affected oak species, we have now identified an additional 13 species from 10 plant families that act as hosts for P. ramorum in California. Our data indicates that nearly all of the state's main tree species in mixed-evergreen and redwood-tanoak forests — including the coniferous timber species coast redwood and Douglas fir — may be hosts for P. ramorum. The broad host range of P. ramorum, the variability of symptoms among different hosts and the ability of the pathogen to disperse by air suggests that it may have the potential to cause long-term, landscape-level changes in California forests.

Subfields: Cell Biology, Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/118ae11c8f68836a18fba12670d2d9ab1ed1591e

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Citations in the corpus

Epidemiological modeling of invasion in heterogeneous landscapes: spread of sudden oak death in California (1990–2030) (2011, background): “…by species identity k) were calculated per cell (Meentemeyer et al. 2004); susceptibility combines host vulnerability to infection (Davidson et al. 2002, Garbelotto et al. 2003) with the ability of the pathogen to produce inoculum on susceptible hosts (Davidson et al. 2005, Davidson et al. 2008).”
Sudden oak death: endangering California and Oregon forest ecosystems (2003, background): “Inoculation experiments on bay laurel leaves have indicated 9–12 hours of leaf wetness and temperatures of ~18–22°C are necessary to obtain significant infection (Garbelotto et al. 2003).”
Equilibrium or not? Modelling potential distribution of invasive species in different stages of invasion (2012, background): “…from symptomatic host plants and tested for P. ramorum at Oregon State University and Oregon Department of Agriculture laboratories via standard culturing and isolation (Davidson et al., 2005) and polymerase chain reaction (PCR)-based molecular assays (Garbelotto et al., 2003; Ivors et al., 2004).”
Sudden oak death in California: Disease progression in oaks and tanoaks (2005, background): “ramorum is known to parasitize species in 12 plant families, including Aceraceae, Anacardiaceae, Betulaceae, Caprifoliaceae, Cupressaceae, Ericaceae, Fagaceae, Hippocastanaceae, Lauraceae, Pinaceae, Rhamnaceae, and Rosaceae (Garbelotto et al., 2003).”
Impact of sudden oak death on tree mortality in the Big Sur ecoregion of California (2008, background): “…needed to examine the efficacy of management strategies for application at landscape scales, such as thinning of foliar host vegetation (Rizzo et al. 2005), increasing host resistance (Garbelotto et al. 2003b), and early detection of pathogen spread (Meentemeyer et al. 2004; Murphy et al. 2005).”
The Evolutionary Ecology of Novel Plant-Pathogen Interactions (2004, background): “The environment can also affect the rate of reproduction of a pathogen (Garbelotto et al. 2003), or determine whether it can reproduce sexually (Adams & Line 1984).”
Mapping the risk of establishment and spread of sudden oak death in California (2004, background): “Bay laurel (Umbellularia californica) was assigned the highest potential spread score (10) among the hosts because foliar infections on this species provide an important source of readily spread inoculum in the form of sporangia, zoospores, and chlamydospores (Davidson et al., 2002; Garbelotto et a”
Multi‐scale patterns of human activity and the incidence of an exotic forest pathogen (2008, background): “Thus, transmission of the disease is driven primarily by infection among foliar hosts, whereas canker hosts do not contribute to pathogen spread ( Garbelotto et al . 2003; Davidson et al . 2005; Rizzo et al . 2005).”