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Article ; Online: Reassessing the Quantum Yield and Reactivity of Triplet-State Dissolved Organic Matter via Global Kinetic Modeling.

Du, Penghui / Tang, Kexin / Yang, Biwei / Mo, Xiaohan / Wang, Junjian

Environmental science & technology

2024 Volume 58, Issue 13, Page(s) 5856–5865

Abstract: Measuring the quantum yield and reactivity of triplet-state dissolved organic matter ( ...

Abstract	Measuring the quantum yield and reactivity of triplet-state dissolved organic matter (
MeSH term(s)	Dissolved Organic Matter ; Photochemical Processes ; Photochemistry ; Photolysis
Chemical Substances	Dissolved Organic Matter
Language	English
Publishing date	2024-03-22
Publishing country	United States
Document type	Journal Article
ISSN	1520-5851
ISSN (online)	1520-5851
DOI	10.1021/acs.est.4c00214
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Article ; Online: Rhizosheath: Distinct features and environmental functions

Mo, Xiaohan / Wang, Mengke / Zeng, Hui / Wang, Junjian

Geoderma. 2023 July, v. 435 p.116500-

2023

Abstract: Interactions between plant roots and the surrounding soils are crucial for plant growth and soil health. The rhizosheath, which is the sheath-like soil that is tightly attached to the plant root surface, is increasingly acknowledged to exhibit distinct ... ...

Abstract	Interactions between plant roots and the surrounding soils are crucial for plant growth and soil health. The rhizosheath, which is the sheath-like soil that is tightly attached to the plant root surface, is increasingly acknowledged to exhibit distinct features and critical environmental functions for soil, plants, and microbes. However, the differences between the terms "rhizosheath" and "rhizosphere soil" remain ambiguous across the literature, and not all features and functions of rhizosheaths have reached a consensus. Here, we summarize the terminology, methodology, formation mechanisms, and findings of the features and functions of rhizosheaths via an integrated and quantitative approach. First, we propose a comprehensive framework for the terminology of different rhizosphere compartments, which allows for consistent definitions and improved comparability across studies. We also summarize the current knowledge of the mechanisms underlying rhizosheath formation. Moreover, by collecting evidence from the literature, we highlight the distinct physical, chemical, and microbial features of rhizosheath soils, such as 66% higher water content, 34% higher soil organic carbon, 56% higher water-extractable organic carbon, and 71% higher microbial biomass nitrogen in rhizosheath soils than those in other rhizosphere counterparts. We further discuss how these features lead to the environmental and biogeochemical functions of rhizosheaths, including sand fixation, soil aggregation, water and nutrient uptake, carbon dynamics, and microbial colonization. We highlight the significance of these functions from micro- to ecosystem-scale. Finally, we propose future research perspectives to better understand and harness the environmental benefits of rhizosheaths.
Keywords	microbial colonization ; microbial nitrogen ; nutrient uptake ; plant growth ; quantitative analysis ; rhizosphere ; roots ; sand ; soil ; soil aggregation ; soil organic carbon ; soil quality ; terminology ; water content ; Environmental stress ; Rhizosphere biogeochemistry ; Root−soil interface ; Sandy soil
Language	English
Dates of publication	2023-07
Publishing place	Elsevier B.V.
Document type	Article ; Online
Note	Use and reproduction
ZDB-ID	281080-3
ISSN	1872-6259 ; 0016-7061
ISSN (online)	1872-6259
ISSN	0016-7061
DOI	10.1016/j.geoderma.2023.116500
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Article ; Online: Molecular characterization of a novel mycovirus from binucleate Rhizoctonia AG-A strain A46.

Shi, Rui / Mo, Xiaohan / Chen, Zebin / Chen, Wurong / Yu, Shuhui / Liu, He / Li, Yuchuan / Dai, Lili / Li, Yanqiong

Archives of virology

2024 Volume 169, Issue 2, Page(s) 31

Abstract: The complete genome sequence of a positive-sense single-stranded RNA (+ ssRNA) virus, Rhizoctonia beny-like virus 1 (RBLV1), isolated from binucleate Rhizoctonia AG-A strain A46, was determined. The RBLV1 genome is 10,280 nt in length and contains a ... ...

Abstract	The complete genome sequence of a positive-sense single-stranded RNA (+ ssRNA) virus, Rhizoctonia beny-like virus 1 (RBLV1), isolated from binucleate Rhizoctonia AG-A strain A46, was determined. The RBLV1 genome is 10,280 nt in length and contains a short stretch of adenines at the 3' terminus. It contains a single open reading frame (ORF) encoding a 376.30-kDa protein with viral helicase and RNA-dependent RNA polymerase (RdRp) motifs. The encoded protein exhibited the highest sequence similarity to Rhizoctonia cerealis beny-like virus 0928-1 (RcBeLV 0928-1, 45.25%), with a sequence coverage of 63%. Phylogenetic analysis based on ORF protein sequences revealed that RBLV1 is a novel unclassified mycovirus.
MeSH term(s)	RNA Viruses ; Fungal Viruses ; Rhizoctonia ; Phylogeny ; Amino Acid Sequence ; Genome, Viral ; Open Reading Frames ; RNA, Viral/genetics
Chemical Substances	RNA, Viral
Language	English
Publishing date	2024-01-18
Publishing country	Austria
Document type	Journal Article
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-024-05963-2
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Article: Complete nucleotide sequence of a novel mycovirus infecting Rhizoctonia fumigata AG-Ba isolate C-314 Baishi

Li, Yanqiong / Xu, Ping / Zhang, Lifang / Chen, Wurong / Ren, Zhen / Yang, Genhua / Mo, Xiaohan

Archives of virology. 2022 Mar., v. 167, no. 3

2022

Abstract: The complete nucleotide sequence of a novel mycovirus, designated as "Rhizoctonia fumigata bipartite virus 1" (RfBV1), from Rhizoctonia fumigata AG-Ba isolate C-314 Baishi was determined. The genome of RfBV1 is composed of two double-stranded RNAs (dsRNA) ...

Abstract	The complete nucleotide sequence of a novel mycovirus, designated as "Rhizoctonia fumigata bipartite virus 1" (RfBV1), from Rhizoctonia fumigata AG-Ba isolate C-314 Baishi was determined. The genome of RfBV1 is composed of two double-stranded RNAs (dsRNA). dsRNA-1 (2311 bp) contains one open reading frame (ORF), which codes for the putative RNA-dependent RNA polymerase (RdRp) of the virus. dsRNA-2 (1690 bp) contains one ORF, which encodes a putative protein whose function is unknown. Phylogenetic analysis indicated that the RdRp of RfBV1 clustered with several unassigned bipartite viruses belonging to the CThTV-like viruses group, but not the family Amalgaviridae or Partitiviridae. Our study suggests that RfBV1 is a novel mycovirus related to the CThTV-like viruses.
Keywords	Amalgaviridae ; Partitiviridae ; RNA-directed RNA polymerase ; Rhizoctonia ; genome ; mycoviruses ; phylogeny ; virology
Language	English
Dates of publication	2022-03
Size	p. 959-963.
Publishing place	Springer Vienna
Document type	Article
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-021-05269-7
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Article ; Online: Complete nucleotide sequence of a novel mycovirus infecting Rhizoctonia fumigata AG-Ba isolate C-314 Baishi.

Li, Yanqiong / Xu, Ping / Zhang, Lifang / Chen, Wurong / Ren, Zhen / Yang, Genhua / Mo, Xiaohan

Archives of virology

2022 Volume 167, Issue 3, Page(s) 959–963

Abstract	The complete nucleotide sequence of a novel mycovirus, designated as "Rhizoctonia fumigata bipartite virus 1" (RfBV1), from Rhizoctonia fumigata AG-Ba isolate C-314 Baishi was determined. The genome of RfBV1 is composed of two double-stranded RNAs (dsRNA). dsRNA-1 (2311 bp) contains one open reading frame (ORF), which codes for the putative RNA-dependent RNA polymerase (RdRp) of the virus. dsRNA-2 (1690 bp) contains one ORF, which encodes a putative protein whose function is unknown. Phylogenetic analysis indicated that the RdRp of RfBV1 clustered with several unassigned bipartite viruses belonging to the CThTV-like viruses group, but not the family Amalgaviridae or Partitiviridae. Our study suggests that RfBV1 is a novel mycovirus related to the CThTV-like viruses.
MeSH term(s)	Base Sequence ; Fungal Viruses ; Genome, Viral ; Open Reading Frames ; Phylogeny ; RNA Viruses ; RNA, Double-Stranded/genetics ; RNA, Viral/genetics ; Rhizoctonia
Chemical Substances	RNA, Double-Stranded ; RNA, Viral
Language	English
Publishing date	2022-02-03
Publishing country	Austria
Document type	Journal Article
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-021-05269-7
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Article: Complete genome sequence of a novel mitovirus from binucleate Rhizoctonia AG-K strain FAS2909W

Li, Yanqiong / Sun, Yang / Yu, Lei / Chen, Wurong / Liu, He / Yin, Lifang / Guang, Yingxia / Yang, Genhua / Mo, Xiaohan

Archives of virology. 2022 Jan., v. 167, no. 1

2022

Abstract: The full-length AU-rich (63.14%) 2,794-nucleotide sequence of Rhizoctonia mitovirus K1 (RMV-K1) isolated from the binucleate AG-K strain FAS2909W was determined. The positive strand of RMV-K1 contains a large open reading frame (ORF) when the fungal ... ...

Abstract	The full-length AU-rich (63.14%) 2,794-nucleotide sequence of Rhizoctonia mitovirus K1 (RMV-K1) isolated from the binucleate AG-K strain FAS2909W was determined. The positive strand of RMV-K1 contains a large open reading frame (ORF) when the fungal mitochondrial genetic code is used. This ORF was predicted to encode an RdRp protein exhibiting the highest sequence identity (41.77%) to Rhizoctonia solani mitovirus 30. Phylogenetic analysis showed that RMV-K1 is a novel member of the genus Mitovirus, family Mitoviridae.
Keywords	Mitovirus ; Rhizoctonia ; Thanatephorus cucumeris ; fungi ; genetic code ; mitochondria ; phylogeny ; sequence analysis ; virology
Language	English
Dates of publication	2022-01
Size	p. 271-276.
Publishing place	Springer Vienna
Document type	Article
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-021-05277-7
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Article: A novel alphapartitivirus from binucleate Rhizoctonia fumigata AG-Ba isolate C-314 Baishi

Li, Yanqiong / Sun, Yang / Xu, Ping / Zhang, Lifang / Chen, Zebin / Niu, Yanfen / Yang, Genhua / Mo, Xiaohan

Archives of virology. 2022 Jan., v. 167, no. 1

2022

Abstract: The full-length nucleotide sequence and genome organization of a novel mycovirus designated as “Rhizoctonia fumigata partitivirus 1” (RfPV1) from Rhizoctonia fumigata AG-Ba strain C-314 Baishi was determined. The genome of RfPV1 consists of two double- ... ...

Abstract	The full-length nucleotide sequence and genome organization of a novel mycovirus designated as “Rhizoctonia fumigata partitivirus 1” (RfPV1) from Rhizoctonia fumigata AG-Ba strain C-314 Baishi was determined. The genome of RfPV1 consists of two double-stranded RNAs (dsRNAs): dsRNA1 (2003 bp) and dsRNA2 (1802 bp). Each of the two dsRNAs contains one open reading frame, coding for a putative RNA-dependent RNA polymerase and a coat protein, respectively. The 5′ untranslated regions (UTRs) of both dsRNAs were conserved, and the 3′-UTRs of the two dsRNAs had interrupted poly(A) tails, similar to other partitiviruses. Phylogenetic analysis indicated that RfPV1 is a new species in the genus Alphapartitivirus, family Partitiviridae.
Keywords	Alphapartitivirus ; RNA-directed RNA polymerase ; Rhizoctonia ; coat proteins ; genome ; mycoviruses ; new species ; phylogeny ; virology
Language	English
Dates of publication	2022-01
Size	p. 255-259.
Publishing place	Springer Vienna
Document type	Article
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-021-05270-0
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Article: High content and distinct spectroscopic characteristics of water-extractable organic matter in rhizosheath soils in a semiarid grassland

Mo, Xiaohan / Wang, Mengke / Wang, Yinghui / Zhang, Peng / Zhang, Ang / Kong, Deliang / Zeng, Hui / Wang, Junjian

Rhizosphere. 2022 Sept., v. 23

2022

Abstract: Rhizosheaths are sheath-like soils widely observed on plant roots and often have higher bioavailability compared with non-rhizosheath rhizosphere soils. As the most labile soil fraction, the quantity and quality of water-extractable organic matter (WEOM) ...

Abstract	Rhizosheaths are sheath-like soils widely observed on plant roots and often have higher bioavailability compared with non-rhizosheath rhizosphere soils. As the most labile soil fraction, the quantity and quality of water-extractable organic matter (WEOM) and its temporal dynamics in rhizosheath soils, however, remain unclear. Here, we used ultraviolet–visible and excitation-emission matrix fluorescence spectroscopy to elucidate the WEOM characteristics of rhizosheath and non-rhizosheath soils in an Inner Mongolian grassland and investigate the temporal dynamics of rhizosheath WEOM from early (June) to late (October) growth stages. The results showed that rhizosheath soils had 88% more bulk WEOM (as indicated by water-extractable organic carbon), 44% more chromophoric WEOM, 55% more humus-like (i.e., humic- and fulvic-like) fluorescent WEOM, and 152% more protein-like fluorescent WEOM compared with non-rhizosheath soils. The absorbance and fluorescence analyses revealed that rhizosheath WEOM exhibited lower aromaticity and molecular size and higher fresh microbial contributions. Further, rhizosheath WEOM was more depleted and showed much higher aromaticity and microbial contributions in the middle (August) growth stage that had the highest temperature and precipitation levels. These findings suggest an enrichment of labile organic compounds, which can serve as the primary contributor to the commonly reported high microbial biomass and activity in rhizosheath soils. Overall, the results supported the exceptionally high labile substrate availability for accelerated microbial carbon processing in the rhizosphere microenvironment of rhizosheath-forming plants.
Keywords	absorbance ; bioavailability ; developmental stages ; fluorescence ; fluorescence emission spectroscopy ; grasslands ; microbial biomass ; microbial carbon ; molecular weight ; rhizosphere ; soil separates ; temperature ; temporal variation ; China
Language	English
Dates of publication	2022-09
Publishing place	Elsevier B.V.
Document type	Article
ISSN	2452-2198
DOI	10.1016/j.rhisph.2022.100553
Database	NAL-Catalogue (AGRICOLA)

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Article: Complete nucleotide sequence of a novel alphapartitivirus from Rhizoctonia solani AG-4 HG III isolate SM03

Li, Yanqiong / Chen, Wurong / Niu, Yanfen / Xu, Ping / Zhang, Lifang / Yu, Shuhui / Yang, Genhua / Mo, Xiaohan

Archives of virology. 2022 Mar., v. 167, no. 3

2022

Abstract: In this report, the full genome sequence of a novel mycovirus, designated as "Rhizoctonia solani partitivirus SM03" (RsPV-SM03), was determined in Rhizoctonia solani AG-4 HG III isolate SM03. RsPV-SM03 genome consists of two dsRNAs (dsRNA-1 and dsRNA-2), ...

Abstract	In this report, the full genome sequence of a novel mycovirus, designated as "Rhizoctonia solani partitivirus SM03" (RsPV-SM03), was determined in Rhizoctonia solani AG-4 HG III isolate SM03. RsPV-SM03 genome consists of two dsRNAs (dsRNA-1 and dsRNA-2), each of them contains one single open reading frame (ORF). ORF1 of dsRNA-1 encodes a putative RNA-dependent RNA polymerase (RdRp), while ORF2 of dsRNA-2 encodes a putative viral coat protein (CP). Phylogenetic analysis indicated that the RdRp and CP of RsPV-SM03 are closely related to those of other members of the genus Alphapartitivirus, family Partitiviridae, suggesting that RsPV-SM03 represents a novel species in the genus Alphapartitivirus.
Keywords	Alphapartitivirus ; RNA-directed RNA polymerase ; Rhizoctonia solani virus 717 ; Thanatephorus cucumeris ; coat proteins ; genome ; mycoviruses ; phylogeny ; virology
Language	English
Dates of publication	2022-03
Size	p. 953-957.
Publishing place	Springer Vienna
Document type	Article
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-021-05261-1
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Article: Molecular-level characteristics of soil organic carbon in rhizosheaths from a semiarid grassland of North China

Mo, Xiaohan / Wang, Mengke / Wang, Yinghui / Chen, Xunwen / Zhang, Ang / Zeng, Hui / Zheng, Yan / Kong, Deliang / Wang, Junjian

Soil biology & biochemistry. 2022 July, v. 170

2022

Abstract: Rhizosheaths are aggregated, sheath-like soils that physically adhere to root surface, and they form on herbaceous plant roots worldwide, especially in semiarid grasslands. Representing a strong root−soil−microbe interaction, the rhizosheaths are ... ...

Abstract	Rhizosheaths are aggregated, sheath-like soils that physically adhere to root surface, and they form on herbaceous plant roots worldwide, especially in semiarid grasslands. Representing a strong root−soil−microbe interaction, the rhizosheaths are expected to have distinct soil organic carbon (SOC) signatures from rhizosphere soils of non-rhizosheath forming plants. However, such signatures remain unclear, which hinders our understanding of root effects on SOC cycling in grasslands. We compared SOC characteristics between rhizosheath and non-rhizosheath soils of eight herbaceous plant species, collected from a semiarid grassland of North China, using solid-state ¹³C nuclear magnetic resonance spectroscopy and biomarker analyses. We further examined the temporal dynamics of SOC characteristics of rhizosheath soils from early, middle, and late plant growth stages. Compared to non-rhizosheath SOC, rhizosheath SOC had more root inputs of both labile substrates (carbohydrates and free alkanoic acids) and relatively recalcitrant suberin- and lignin-derived compounds. Moreover, the labile inputs provided more substrates for microbial degradation of cutin-derived compounds. These indicators of labile substrate availability increased significantly from the early to late growth stages. Overall, our findings clarify the molecular characteristics of rhizosheath SOC and its temporal dynamics, both of which suggest a critical role of rhizosheath in shaping the rhizosphere microenvironment and regulating SOC cycling.
Keywords	biodegradation ; biomarkers ; grasslands ; herbaceous plants ; nuclear magnetic resonance spectroscopy ; plant growth ; rhizosphere ; soil organic carbon ; temporal variation
Language	English
Dates of publication	2022-07
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	280810-9
ISSN	0038-0717
ISSN	0038-0717
DOI	10.1016/j.soilbio.2022.108682
Database	NAL-Catalogue (AGRICOLA)

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