Ganoderma orbiforme
Template:Short description Template:Speciesbox
Ganoderma orbiforme Template:Ndash most commonly known as G. boninense or just Ganoderma in oil palm pathology Template:Ndash is a species of polypore fungus that is widespread across southeast Asia. It is a plant pathogen that causes basal stem rot, a disease of the African oil palm (Elaeis guineensis). The fungus was first described scientifically in 1838 by Elias Magnus Fries from collections made in Guinea.[1] Leif Ryvarden transferred it to the genus Ganoderma in 2000.[2] In addition to its type locality, the fungus has also been collected from the Bonin Islands in the Pacific, and from Venezuela and Puerto Rico.[2]
Transmission
G. orbiforme is not a soil borne pathogen, meaning it does not grow in soil and does not infiltrate from soil and into the root system.[3]Template:Rp It is however also not killed by soil, and will reside in dead, buried palm trunk material.[3]Template:Rp This has especially been observed when Oryctes rhinoceros-infested material was buried.[3]Template:Rp
Infection
G. orbiforme has a hemibiotrophic lifestyle in E. guineensis.[4] During an invasion, E. guineensis roots stockpile salicylic acid, which is a signal to downregulate its own expression of ascorbate oxidase and ascorbate peroxidase.[5] AO and AP are reactive oxygen species scavengers, and so the total effect is to increase ROS production.[5] This entire pathway was found by Ho et al., 2016.[5] Increased ROS is effective against hemibiotrophs but counterproductive against necrotrophs.[5]
Genetics
Microsatellite markers have been developed to help identify the fungus and study the genetic diversity of G. orbiforme.[6]
Research
Water agar is usable for isolation of this fungus, and is the simplest and cheapest.[7]Template:RP CABI provides research and technique information for lab work with this pathogen.[7]
References
<templatestyles src="Reflist/styles.css" />
- ↑ Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ a b c d Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1". Template:Open access
- ↑ a b Script error: No such module "citation/CS1".
Script error: No such module "Check for unknown parameters".
External links
- Script error: No such module "citation/CS1".
- Script error: No such module "citation/CS1".