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OfflineThufir_Hawat
Mentat
I'm a teapot

Registered: 03/18/17
Posts: 399
Last seen: 20 days, 8 hours
Re: On the Identity of the popular Ganoderma lucidum. [Re: Mrcloudy]
    #25334746 - 07/19/18 12:02 AM (5 years, 7 months ago)

A couple of relevant papers just published on the subject of Ganoderma identification and taxonomy:

Elucidating "lucidum": Distinguishing the diverse laccate Ganoderma species of the United States

Quote:

Ganoderma is a large, diverse and globally-distributed genus in the Basidiomycota that includes species causing a white rot form of wood decay on a variety of tree species. For the past century, many studies of Ganoderma in North America and other regions of the world have used the name G. lucidum sensu lato for any laccate (shiny or varnished) Ganoderma species growing on hardwood trees or substrates. Molecular studies have established that G. lucidum sensu stricto (Curtis) Karst is native to Europe and some parts of China. To determine the species of the laccate Ganoderma that are present in the United States, we studied over 500 collections from recently collected samples and herbarium specimens from hardwoods, conifers, and monocots. A multilocus phylogeny using ITS, tef1α, rpb1 and rpb2 revealed three well-supported clades, similar to previously reported findings. From the U.S. collections, thirteen taxa representing twelve species were identified, including: G. curtisii, G. lucidum sensu stricto, G. martinicense, G. oregonense, G. polychromum, G. ravenelii, G. sessile, G. tsugae, G. tuberculosum, G. cf. weberianum, G. zonatum, and Tomophagus colossus (syn. G. colossus). The species G. meredithiae is synonymized with G. curtisii, and considered a physiological variant that specializes in decay of pines. The designation G. curtisii f.sp. meredithiae forma specialis nov. is proposed. Species such as G. curtisii and G. sessile, once considered as G. lucidum sensu lato, were found to be divergent from one another, and highly divergent from G. lucidum sensu stricto. Morphological characteristics such as context tissue color and features (e.g. melanoid bands), basidiospore shape and size, geographic location, and host preference were found to aid in species identification. Surprisingly, G. lucidum sensu stricto was found in the U.S., but only in geographically restricted areas of northern Utah and California. These collections appear to have resulted from the introduction of this species into the United States possibly from mushroom growers producing G. lucidum outdoors. Overall, this study clarifies the chaotic taxonomy of the laccate Ganoderma in the United States, and will help to remove ambiguities from future studies focusing on the North American species of laccate Ganoderma.





Identifying the “Mushroom of Immortality”: Assessing the Ganoderma Species Composition in Commercial Reishi Products

Quote:

Species of Ganoderma, commonly called reishi (in Japan) or lingzhi (in China), have been used in traditional medicine for thousands of years, and their use has gained interest from pharmaceutical industries in recent years. Globally, the taxonomy of Ganoderma species is chaotic, and the taxon name Ganoderma lucidum has been used for most laccate (shiny) Ganoderma species. However, it is now known that G. lucidum sensu stricto has a limited native distribution in Europe and some parts of China. It is likely that differences in the quality and quantity of medicinally relevant chemicals occur among Ganoderma species. To determine what species are being sold in commercially available products, twenty manufactured products (e.g., pills, tablets, teas, etc.) and seventeen grow your own (GYO) kits labeled as containing G. lucidum were analyzed. DNA was extracted, and the internal transcribed spacer (ITS) region and translation elongation factor 1-alpha (tef1α) were sequenced with specific fungal primers. The majority (93%) of the manufactured reishi products and almost half of the GYO kits were identified as Ganoderma lingzhi. G. lingzhi is native to Asia and is the most widely cultivated and studied taxon for medicinal use. Illumina MiSeq sequencing of the ITS1 region was performed to determine if multiple Ganoderma species were present. None of the manufactured products tested contained G. lucidum sensu stricto, and it was detected in only one GYO kit. G. lingzhi was detected in most products, but other Ganoderma species were also present, including G. applanatum, G. australe, G. gibbosum, G. sessile, and G. sinense. Our results indicate that the content of these products vary and that better labeling is needed to inform consumers before these products are ingested or marketed as medicine. Of the 17 GYO kits tested, 11 kits contained Ganoderma taxa that are not native to the United States. If fruiting bodies of exotic Ganoderma taxa are cultivated, these GYO kits will likely end up in the environment. The effects of these exotic species to natural ecosystems needs investigation.




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OfflineMrcloudy
Stranger than you.
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Registered: 10/01/13
Posts: 2,889
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Last seen: 4 months, 13 days
Re: On the Identity of the popular Ganoderma lucidum. [Re: Thufir_Hawat]
    #25336268 - 07/19/18 10:02 PM (5 years, 7 months ago)

Quote:

Thufir_Hawat said:
A couple of relevant papers just published on the subject of Ganoderma identification and taxonomy:

Elucidating "lucidum": Distinguishing the diverse laccate Ganoderma species of the United States

Quote:

Ganoderma is a large, diverse and globally-distributed genus in the Basidiomycota that includes species causing a white rot form of wood decay on a variety of tree species. For the past century, many studies of Ganoderma in North America and other regions of the world have used the name G. lucidum sensu lato for any laccate (shiny or varnished) Ganoderma species growing on hardwood trees or substrates. Molecular studies have established that G. lucidum sensu stricto (Curtis) Karst is native to Europe and some parts of China. To determine the species of the laccate Ganoderma that are present in the United States, we studied over 500 collections from recently collected samples and herbarium specimens from hardwoods, conifers, and monocots. A multilocus phylogeny using ITS, tef1α, rpb1 and rpb2 revealed three well-supported clades, similar to previously reported findings. From the U.S. collections, thirteen taxa representing twelve species were identified, including: G. curtisii, G. lucidum sensu stricto, G. martinicense, G. oregonense, G. polychromum, G. ravenelii, G. sessile, G. tsugae, G. tuberculosum, G. cf. weberianum, G. zonatum, and Tomophagus colossus (syn. G. colossus). The species G. meredithiae is synonymized with G. curtisii, and considered a physiological variant that specializes in decay of pines. The designation G. curtisii f.sp. meredithiae forma specialis nov. is proposed. Species such as G. curtisii and G. sessile, once considered as G. lucidum sensu lato, were found to be divergent from one another, and highly divergent from G. lucidum sensu stricto. Morphological characteristics such as context tissue color and features (e.g. melanoid bands), basidiospore shape and size, geographic location, and host preference were found to aid in species identification. Surprisingly, G. lucidum sensu stricto was found in the U.S., but only in geographically restricted areas of northern Utah and California. These collections appear to have resulted from the introduction of this species into the United States possibly from mushroom growers producing G. lucidum outdoors. Overall, this study clarifies the chaotic taxonomy of the laccate Ganoderma in the United States, and will help to remove ambiguities from future studies focusing on the North American species of laccate Ganoderma.










I am one of the coauthors of the first study. :thumbup:


--------------------

10 different Ganoderma species from across the USA

AMU

MrCloudys guide to North American GanodermaUpdated A rough guide to North American Ganoderma species, with an emphasis on the laccate species.


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OfflineThufir_Hawat
Mentat
I'm a teapot

Registered: 03/18/17
Posts: 399
Last seen: 20 days, 8 hours
Re: On the Identity of the popular Ganoderma lucidum. [Re: Mrcloudy]
    #25336307 - 07/19/18 10:38 PM (5 years, 7 months ago)

Awesome!! Love your work :murray:

edit: And just to make this post a little less useless, any ideas as to the identity of this nice infection I found the other day?

e: More, but different, fruits I didn't notice color on ~36hrs earlier (flash photos at night):


Southern California, and I'm terrible at identifying trees so :confused:.


Edited by Thufir_Hawat (07/20/18 02:19 AM)


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Invisiblelipa

Registered: 07/24/07
Posts: 2,684
Trusted Cultivator
Re: On the Identity of the popular Ganoderma lucidum. [Re: Thufir_Hawat]
    #25339775 - 07/21/18 09:59 PM (5 years, 7 months ago)

that bottom one looks like resinaceum. Right now is the time it starts showing up. I have some fruiting on oaks in the mountains where my farm is. They always have a bumpy top and the yellow coloring. Especially if you scrape it or a branch falls on top of it at some point.


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OfflineMrcloudy
Stranger than you.
Male User Gallery

Registered: 10/01/13
Posts: 2,889
Loc: Northeast US Flag
Last seen: 4 months, 13 days
Re: On the Identity of the popular Ganoderma lucidum. [Re: Thufir_Hawat] * 1
    #25341697 - 07/23/18 05:01 AM (5 years, 6 months ago)

Quote:

Thufir_Hawat said:
Awesome!! Love your work :murray:

edit: And just to make this post a little less useless, any ideas as to the identity of this nice infection I found the other day?

e: More, but different, fruits I didn't notice color on ~36hrs earlier (flash photos at night):


Southern California, and I'm terrible at identifying trees so :confused:.



Ganoderma polychromum


--------------------

10 different Ganoderma species from across the USA

AMU

MrCloudys guide to North American GanodermaUpdated A rough guide to North American Ganoderma species, with an emphasis on the laccate species.


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Invisiblelipa

Registered: 07/24/07
Posts: 2,684
Trusted Cultivator
Re: On the Identity of the popular Ganoderma lucidum. [Re: Mrcloudy] * 1
    #25342590 - 07/23/18 03:29 PM (5 years, 6 months ago)

Here is a picture of one that I grew out.



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OfflineDa Great MG
Stranger

Registered: 01/14/09
Posts: 10
Last seen: 3 years, 6 months
Re: On the Identity of the popular Ganoderma lucidum. [Re: lipa]
    #25349099 - 07/26/18 10:40 PM (5 years, 6 months ago)

.


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OfflineThufir_Hawat
Mentat
I'm a teapot

Registered: 03/18/17
Posts: 399
Last seen: 20 days, 8 hours
Re: On the Identity of the popular Ganoderma lucidum. [Re: Mrcloudy]
    #25370985 - 08/06/18 07:47 PM (5 years, 6 months ago)

Quote:

Mrcloudy said:
Quote:

Thufir_Hawat said:
Awesome!! Love your work :murray:

edit: And just to make this post a little less useless, any ideas as to the identity of this nice infection I found the other day?

e: More, but different, fruits I didn't notice color on ~36hrs earlier (flash photos at night):


Southern California, and I'm terrible at identifying trees so :confused:.



Ganoderma polychromum



Update since I've been keeping track of these fruits:


You can see the inside of the body is dark brown from the cracks in the last picture. Lots of spores on them now.



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