Abstract Details
(2020) Effects of Biological Manganese Cycling on Carbon Storage in the Critical Zone
Herndon E, Laubscher S, Sulman B & Rosenfeld C
https://doi.org/10.46427/gold2020.1025
The author has not provided any additional details.
12e: Room 4, Friday 26th June 00:30 - 00:33
Elizabeth Herndon
View all 5 abstracts at Goldschmidt2020
View abstracts at 13 conferences in series
Sydney Laubscher
Benjamin Sulman View abstracts at 3 conferences in series
Carla Rosenfeld View all 3 abstracts at Goldschmidt2020 View abstracts at 6 conferences in series
Sydney Laubscher
Benjamin Sulman View abstracts at 3 conferences in series
Carla Rosenfeld View all 3 abstracts at Goldschmidt2020 View abstracts at 6 conferences in series
Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.
Submitted by Pieter Bots on Tuesday 23rd June 19:13
Thank you for your presentation. Have you considered symbiotic relationships between plants and mycorrhizal fungi? Steeve Bonneville et al. in 2009 (Geology) have shown that mycorrhizal fungi impact on the structure and subsequent dissolution of mineral phases which enables the uptake of dissolved ions by plants through their root system.
I'm not sure if you were able to attend the Q&A last night, so I wanted to put an answer here as well. We did not explicitly consider mycorrhizal fungi, although some of the fungi in our analyses are able to form mycorrhizal associations. My understanding of plant uptake of Mn is that it's related primarily to the amount of dissolved Mn in solution and fungi play little role in acquiring it from the soil since it's usually fairly abundant. If anything, mycorrhizal fungi are known to exclude Mn and lower uptake.
Thank you for your presentation. Have you considered symbiotic relationships between plants and mycorrhizal fungi? Steeve Bonneville et al. in 2009 (Geology) have shown that mycorrhizal fungi impact on the structure and subsequent dissolution of mineral phases which enables the uptake of dissolved ions by plants through their root system.
I'm not sure if you were able to attend the Q&A last night, so I wanted to put an answer here as well. We did not explicitly consider mycorrhizal fungi, although some of the fungi in our analyses are able to form mycorrhizal associations. My understanding of plant uptake of Mn is that it's related primarily to the amount of dissolved Mn in solution and fungi play little role in acquiring it from the soil since it's usually fairly abundant. If anything, mycorrhizal fungi are known to exclude Mn and lower uptake.
Submitted by Yanting Zhang on Wednesday 24th June 14:38
Sorry, I am confused about the Mn solubility in different Mn treatment. Why is the Mn solubility of shale greater than that of oxide? What is the relationship between 'crushed black shale' and Mn? Does Mn act as an impurity in shale? Besides, what is the difference between Mn solubility and Mn leaching?
Yes, let me clarify. The Mn in the black shale was hosted in pyrite, which is a fast weathering substrate relative to Mn oxides. The crushed shale was from our field site and we were trying to compare the field and greenhouse scales. Mn leaching in the unplanted treatments were used as a proxy for solubility, although may not capture any re-oxidation occurring in the soil.
Sorry, I am confused about the Mn solubility in different Mn treatment. Why is the Mn solubility of shale greater than that of oxide? What is the relationship between 'crushed black shale' and Mn? Does Mn act as an impurity in shale? Besides, what is the difference between Mn solubility and Mn leaching?
Yes, let me clarify. The Mn in the black shale was hosted in pyrite, which is a fast weathering substrate relative to Mn oxides. The crushed shale was from our field site and we were trying to compare the field and greenhouse scales. Mn leaching in the unplanted treatments were used as a proxy for solubility, although may not capture any re-oxidation occurring in the soil.
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