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Article: The effects of different iron and phosphorus treatments on the formation and morphology of iron plaque in rice roots (

Hu, Haoran / Bi, Liyan / Wang, Lei / Zhan, Fangdong / Liang, Xinran / Qin, Li / Li, Yuan

2024 Volume 14, Page(s) 1304505

Abstract: Introduction: Rice (: Method: To study the crystallographic aspects of iron plaque formation on rice roots, the concentrations of Fe: Results: The results demonstrated that an increase in the Fe: Discussion: This study elucidated the impacts of ...

Abstract	Introduction: Rice ( Method: To study the crystallographic aspects of iron plaque formation on rice roots, the concentrations of Fe Results: The results demonstrated that an increase in the Fe Discussion: This study elucidated the impacts of Fe
Language	English
Publishing date	2024-01-08
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2613694-6
ISSN	1664-462X
ISSN	1664-462X
DOI	10.3389/fpls.2023.1304505
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Organic Materials Promote

Chen, Yunchun / Li, Wei / Cai, Xinchen / Li, Bo / Zhan, Fangdong / Zu, Yanqun / He, Yongmei

Plants (Basel, Switzerland)

2024 Volume 13, Issue 6

Abstract: The mining of metal minerals generates considerable mining wasteland areas, which are characterized by poor soil properties that hinder plant growth. In this study, a field plot experiment was carried out in the mining wasteland of the Lanping lead-zinc ... ...

Abstract	The mining of metal minerals generates considerable mining wasteland areas, which are characterized by poor soil properties that hinder plant growth. In this study, a field plot experiment was carried out in the mining wasteland of the Lanping lead-zinc mine in Yunnan Province to study the effects of applying three organic materials-biochar (B), organic fertilizer (OF), and sludge (S)-at concentrations of 1% (mass fraction), on promoting the soil of mining wasteland and the growth of two plant varieties (
Language	English
Publishing date	2024-03-20
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704341-1
ISSN	2223-7747
ISSN	2223-7747
DOI	10.3390/plants13060891
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Article ; Online: Arbuscular Mycorrhizal Fungi Promote the Degradation of the Fore-Rotating Crop (Brassica napus L.) Straw, Improve the Growth of and Reduce the Cadmium and Lead Content in the Subsequent Maize

Guo, Jianfang / Chen, Jiaxin / Li, Chengxue / Wang, Lei / Liang, Xinran / Shi, Junjie / Zhan, Fangdong

Agronomy. 2023 Mar. 07, v. 13, no. 3

2023

Abstract: Arbuscular mycorrhizal fungi (AMF) are widely present in heavy metal-polluted soils, but their effects on straw degradation and plant growth of rotated crops are poorly understood. In this study, a pot experiment was used to simulate the return of fore- ... ...

Abstract	Arbuscular mycorrhizal fungi (AMF) are widely present in heavy metal-polluted soils, but their effects on straw degradation and plant growth of rotated crops are poorly understood. In this study, a pot experiment was used to simulate the return of fore-rotating crop (Brassica napus L.) straw to farmland with a subsequent planting of maize in a lead–zinc mining area on the Yunnan Plateau, Southwest China, which included four treatments: control (CK), addition of rape straw (SR), inoculation of AMF (AMF), and both AMF inoculation and straw addition (AMF + SR). The effects of AMF on the degradation and nutrient release of the fore-rotating rape straw and the growth, mineral nutrition and the cadmium (Cd) and lead (Pb) contents of the subsequent maize were investigated. Compared with the CK treatment, AMF significantly promoted the degradation of rape straw and the release of mineral nutrients (nitrogen, phosphorus and potassium) as well as the Cd and Pb, increased the content of available nutrients in soil, and improved the mineral nutrient contents in the maize. AMF + SR significantly increased the maize height and biomass by 32–35% and decreased the available Cd and Pb contents in soil and the Cd and Pb contents in the maize by 20–30% and 18–25%, respectively. Moreover, the available Cd and Pb contents in the soil presented significant positive correlations with their contents in the maize but negative correlations with the height and biomass of the maize. Thus, AMF played an important regulatory role in the nutrient cycling and heavy metal accumulation of the crop rotation.
Keywords	Brassica napus ; agricultural land ; agronomy ; biomass ; cadmium ; corn ; crop rotation ; heavy metals ; lead ; nitrogen ; nutrition ; phosphorus ; plant growth ; potassium ; soil ; straw ; vesicular arbuscular mycorrhizae ; China
Language	English
Dates of publication	2023-0307
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article ; Online
ZDB-ID	2607043-1
ISSN	2073-4395
ISSN	2073-4395
DOI	10.3390/agronomy13030767
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Effects of enhanced UV-B radiation on nitrogen transformation and functional biological properties in the rice rhizosphere

Xiao, Huichuan / Wu, Jiong / Zhang, Yanxue / Li, Zuran / Zhan, Fangdong / Li, Yuan / He, Yongmei

Archives of Agronomy and Soil Science. 2023 July 29, v. 69, no. 9 p.1645-1659

2023

Abstract: To clarify the effect of enhanced UV-B radiation on soil nitrogen transformation and its biological processes in paddy fields, the effects of enhanced ultraviolet-B radiation (0, 2.5, 5.0 and 7.5 kJ m⁻²) on soil nitrogen transformation and N₂O emission, ... ...

Abstract	To clarify the effect of enhanced UV-B radiation on soil nitrogen transformation and its biological processes in paddy fields, the effects of enhanced ultraviolet-B radiation (0, 2.5, 5.0 and 7.5 kJ m⁻²) on soil nitrogen transformation and N₂O emission, functional microbial quantity, enzyme activity, and gene expression during the growth period (tillering, jointing, booting and maturity stage) of rice were investigated in situ in a rice paddy field in the Yuanyang terraces, Yunnan Province, southwest China. The results show that UV-B radiation decreased the NH₄ ⁺-N content, increased the NO₃ –N content in the rhizosphere, decreased N₂O emissions from paddy fields, and significantly affected the properties of soil nitrogen transforming microorganisms. The 5.0 kJ m⁻² UV-B radiation increased the quantity of ammonifying bacteria and ammonia oxidizing bacteria by 18–160% and 34–151%, respectively, decreased the urease activity in the rice rhizosphere by 11.9–27%; and significantly increased the expression of AOB-amoA and nosZ genes. Thus, the enhanced UV-B radiation increased the ammonia-oxidizing bacteria and AOB-amoA and nosZ gene expression, promoted the transformation of NH₄ ⁺-N to NO₃ –N in the rice rhizosphere, and reduced N₂O emissions in the paddy field.
Keywords	agronomy ; ammonia ; enzyme activity ; gene expression ; maturity stage ; nitrogen ; paddies ; rhizosphere ; rice ; soil ; tillering ; ultraviolet radiation ; urease ; China ; UV-B radiation ; rice rhizosphere ; nitrogen transformation ; N2O emissions
Language	English
Dates of publication	2023-0729
Size	p. 1645-1659.
Publishing place	Taylor & Francis
Document type	Article ; Online
ZDB-ID	1132910-5
ISSN	1476-3567 ; 0365-0340
ISSN (online)	1476-3567
ISSN	0365-0340
DOI	10.1080/03650340.2022.2103675
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: An arbuscular mycorrhizal fungus differentially regulates root traits and cadmium uptake in two maize varieties.

Chen, Jiaxin / Wang, Lei / Liang, Xinran / Li, Bo / He, Yongmei / Zhan, Fangdong

Ecotoxicology and environmental safety

2023 Volume 264, Page(s) 115458

Abstract: Arbuscular mycorrhizal fungi (AMF) are symbiotic fungi that colonize plant roots, and they are more common in Cd-polluted habitats. However, there is limited understanding of the response of root traits and cadmium (Cd) uptake to AMF in different crop ... ...

Abstract	Arbuscular mycorrhizal fungi (AMF) are symbiotic fungi that colonize plant roots, and they are more common in Cd-polluted habitats. However, there is limited understanding of the response of root traits and cadmium (Cd) uptake to AMF in different crop varieties. Two maize varieties, Panyu 3 and Ludan 8, with high and low Cd uptake capacities, respectively, were cultivated as host plants in a pot experiment with Cd-polluted soil (17.1 mg/kg Cd). The effects of AMF on the growth, mineral nutrient concentration, root traits, phytohormone concentrations and Cd uptake of the two maize varieties and their comprehensive response to AMF fungal inoculation were investigated. AMF improved growth, mineral nutrient levels and root morphology and increased lignin and phytohormone concentrations in roots and Cd uptake in the two maize varieties. However, the two maize varieties, Panyu 3 and Ludan 8, had different responses to AMF, and their comprehensive response indices were 753.6% and 389.4%, respectively. The root biomass, branch number, abscisic acid concentrations, lignin concentrations and Cd uptake of maize Panyu 3 increased by 151.1%, 28.6%, 139.7%, 99.5% and 84.7%, respectively. The root biomass, average diameter, auxin concentration, lignin concentration and Cd uptake of maize Ludan 8 increased by 168.7%, 31.8%, 31.4%, 41.7% and 136.7%, respectively. Moreover, Cd uptake in roots presented very significant positive correlations with the average root diameter and abscisic acid concentration. A structural equation model indicated that the root abscisic acid concentration and root surface area had positive effects on Cd uptake by the Panyu 3 maize roots; the root abscisic acid concentration and root tip number had positive effects on Cd uptake by the Ludan 8 maize roots. Thus, AMF differentially regulated Cd uptake in the two maize varieties, and the regulatory effect was closely related to root traits and phytohormone concentrations.
MeSH term(s)	Mycorrhizae/physiology ; Cadmium/toxicity ; Cadmium/analysis ; Zea mays ; Plant Roots/chemistry ; Plant Growth Regulators ; Abscisic Acid/analysis ; Lignin/analysis ; Soil Pollutants/toxicity ; Soil Pollutants/analysis ; Minerals/analysis ; Soil/chemistry
Chemical Substances	Cadmium (00BH33GNGH) ; Plant Growth Regulators ; Abscisic Acid (72S9A8J5GW) ; Lignin (9005-53-2) ; Soil Pollutants ; Minerals ; Soil
Language	English
Publishing date	2023-09-08
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	436536-7
ISSN	1090-2414 ; 0147-6513
ISSN (online)	1090-2414
ISSN	0147-6513
DOI	10.1016/j.ecoenv.2023.115458
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Article: Editorial: New insights into the influences of soil nutrients on plant-fungal symbiosis in agro- and forest ecosystems.

Sun, Kai / Zhan, Fang-Dong / Shi, Yu / Zhou, Jiayu / Zhou, Jun / Peng, Long

Frontiers in microbiology

2023 Volume 14, Page(s) 1237534

Language	English
Publishing date	2023-07-18
Publishing country	Switzerland
Document type	Editorial
ZDB-ID	2587354-4
ISSN	1664-302X
ISSN	1664-302X
DOI	10.3389/fmicb.2023.1237534
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Article ; Online: Enhanced ultraviolet-B radiation alleviates structural damages on rice leaf caused by Magnaporthe oryzae infection.

He, Yongmei / Li, Hongru / Wu, Jiong / Li, Xiang / Zu, Yanqun / Zhan, Fangdong / Li, Yuan

Protoplasma

2023 Volume 261, Issue 1, Page(s) 161–171

Abstract: Enhanced ultraviolet-B (UV-B) radiation can change the interaction between crops and pathogens. The effects of single and compound stresses of enhanced UV-B radiation (5.0 kJ· ... ...

Abstract	Enhanced ultraviolet-B (UV-B) radiation can change the interaction between crops and pathogens. The effects of single and compound stresses of enhanced UV-B radiation (5.0 kJ·m
MeSH term(s)	Oryza ; Magnaporthe ; Plant Diseases ; Plant Leaves ; Ascomycota
Language	English
Publishing date	2023-07-10
Publishing country	Austria
Document type	Journal Article
ZDB-ID	123809-7
ISSN	1615-6102 ; 0033-183X
ISSN (online)	1615-6102
ISSN	0033-183X
DOI	10.1007/s00709-023-01867-1
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Article ; Online: Effects of UV-B Radiation on the Chemical Composition of Azolla and Its Decomposition after Returning to the Field and Nitrogen Transformation in Soil

Chang, Linxi / Li, Haitao / Liu, Chengqian / Liang, Xinran / Xie, Chunmei / Li, Zuran / Li, Yuan / Zhan, Fangdong / He, Yongmei

Agronomy. 2023 July 26, v. 13, no. 8

2023

Abstract: In the present research, the effects of UV-B radiation (5.00 kJ·m⁻²) on the chemical composition of Azolla were investigated, and the decomposition of Azolla residues after UV-B radiation, the nitrogen form, enzyme activity, and bacterial community in ... ...

Abstract	In the present research, the effects of UV-B radiation (5.00 kJ·m⁻²) on the chemical composition of Azolla were investigated, and the decomposition of Azolla residues after UV-B radiation, the nitrogen form, enzyme activity, and bacterial community in paddy soil were analyzed. Compared to the natural light treatment, the total nitrogen content of Azolla was significantly increased by 17.0% under UV-B radiation treatment. Compared to returned Azolla grown under natural light, the decomposition rate of cellulose, lignin, and total nitrogen of returned Azolla grown under UV-B radiation significantly increased, which led to an increase in the activities of nitrogen transformation enzymes, including neutral protease, ammonia monooxygenase, nitrogenase, nitrate reductase, and nitrite reductase, and the contents of different nitrogen forms (NH₄⁺-N, NO₃⁻-N, soluble organic nitrogen, and microbial biomass nitrogen) in paddy soil, while N₂O emission flux was significantly reduced by 20–30%. The dominant bacteria in soil supplied with Azolla grown under natural light were Firmicutes, Clostridia, Clostridiales, and Lachnospiraceae. However, returning Azolla grown under UV-B radiation to the soil significantly changed the bacterial community structure in soil, resulting in a decrease in the number of ammonifying bacteria, nitrifying bacteria, and nitrogen-fixing bacteria and an increase in the number of denitrifying bacteria, inducing changes in the dominant bacteria to Methanomicrobiales, Methanoregulaceae, and Methanoregula. According to the structural equation model, returning Azolla to the field would reduce N₂O emissions by increasing Azolla lignin decomposition and ammonia monooxygenase activity, reducing the number of nitrifying bacteria and reducing nitrite reductase activity in soil. Thus, UV-B radiation can directly change the phytochemical components and their decomposition in soil, thus indirectly affecting the bacterial community structure, enzyme activity, and nitrogen transformation, which play important ecological roles in regulating the nutrient transformation of terrestrial ecosystems.
Keywords	Azolla ; Lachnospiraceae ; Methanomicrobiales ; agronomy ; ammonia monooxygenase ; bacterial communities ; cellulose ; community structure ; denitrification ; enzyme activity ; lignin ; microbial nitrogen ; nitrate reductase ; nitrite reductase ; nitrogen fixation ; nitrogenase ; paddy soils ; phytochemicals ; proteinases ; solar radiation ; structural equation modeling ; total nitrogen
Language	English
Dates of publication	2023-0726
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article ; Online
ZDB-ID	2607043-1
ISSN	2073-4395
ISSN	2073-4395
DOI	10.3390/agronomy13081968
Database	NAL-Catalogue (AGRICOLA)

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Article: Inhibition of native arbuscular mycorrhizal fungi induced increases in cadmium loss via surface runoff and interflow from farmland

Zhan, Fangdong / Zeng, Wenzeng / Li, Bo / Li, Zuran / Chen, Jianjun / He, Yongmei / Li, Yuan

International Research and Training Center on Erosion and Sedimentation, China Water and Power Press, and China Institute of Water Resources and Hydropower Research International soil and water conservation research. 2022 May 25,

2022

Abstract: Arbuscular mycorrhizal fungi (AMF) can form symbiotic relationships with most crops, but their impact on the environmental migration of cadmium (Cd) in farmland is limited. A field experiment was performed in the rainy season (May–October) for two years ... ...

Abstract	Arbuscular mycorrhizal fungi (AMF) can form symbiotic relationships with most crops, but their impact on the environmental migration of cadmium (Cd) in farmland is limited. A field experiment was performed in the rainy season (May–October) for two years in Cd-polluted farmland used for maize cultivation. A fungicide (benomyl) was used to specifically inhibit native AMF growth in the farmland. The growth and Cd uptake of maize and the Cd concentration and loss in runoff and interflow were investigated. Benomyl strongly and significantly inhibited AMF colonization rate in maize roots, reduced the contents of total and easily extractable glomalin-related soil protein (GRSP) in soil and the Cd uptake in maize roots, and increased the Cd uptake in shoots. Particulate Cd was the main form of Cd loss in runoff, while dissolved Cd was the main form of Cd leaching loss at depths of 20 cm and 40 cm. Inhibiting AMF increased the Cd concentration in runoff and interflow and promoted dissolved Cd loss in runoff and interflow at 20 cm depth by 34.7% and 68.0% and particulate Cd loss by 46.4% and 19.7%, respectively. Furthermore, the AMF colonization rate in maize roots and the GRSP content in soil were significantly positively correlated with Cd uptake in roots and negatively correlated with the concentration and loss of Cd in runoff and interflow. These results indicated that the benomyl-induced inhibition of native AMF promoted Cd transfer to maize shoots and increased Cd loss via runoff and interflow from polluted farmland.
Keywords	agricultural land ; benomyl ; cadmium ; corn ; field experimentation ; fungicides ; research ; runoff ; soil ; subsurface flow ; vesicular arbuscular mycorrhizae ; water conservation ; wet season
Language	English
Dates of publication	2022-0525
Publishing place	Elsevier B.V.
Document type	Article
Note	Pre-press version
ZDB-ID	2835330-4
ISSN	2095-6339
ISSN	2095-6339
DOI	10.1016/j.iswcr.2022.05.006
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Article: Suppression of arbuscular mycorrhizal fungi increased lead uptake in maize leaves and loss via surface runoff and interflow from polluted farmland

Zhan, Fangdong / Chen, Jiaxin / Zeng, Wenzeng / Liang, Xinran / He, Yongmei / Zu, Yanqun

Environmental research. 2022 Sept., v. 212

2022

Abstract: Arbuscular mycorrhizal fungi (AMF) are ubiquitous in farmland. But the knowledge on AMF impact on lead (Pb) migration in farmland is limited. A field experiment was conducted in the rainy season (May–October) for two years in a Pb-polluted farmland. ... ...

Abstract	Arbuscular mycorrhizal fungi (AMF) are ubiquitous in farmland. But the knowledge on AMF impact on lead (Pb) migration in farmland is limited. A field experiment was conducted in the rainy season (May–October) for two years in a Pb-polluted farmland. Benomyl was used to specifically suppress the native AMF growth in the farmland. The effect of benomyl-induced AMF suppression on the Pb uptake in maize, and Pb loss via surface runoff and interflows (20 cm and 40 cm depth) from the farmland was investigated. The benomyl significantly inhibited the AMF growth, resulting in decreases in the colonization rate, spore number, and contents of total and easily extractable glomalin-related soil protein (GRSP); and promoted the Pb migration into maize shoots and mainly enriched in leaves. The particulate Pb accounted for 83.2%–90.6% of Pb loss via surface runoff, while the proportion of particulate Pb loss via interflow was decreased and the proportion of dissolved Pb loss increased with the increase of soil depth. The AMF suppression led to a decrease in dissolved Pb concentration and loss, but an increase in particulate Pb concentration and loss, and enhanced the total Pb loss via surface runoff and interflows. Moreover, significant or very significant negative correlations were observed between the AMF colonization rate in roots with the Pb uptake in leaves, and the content of easily extractable GRSP with the particulate Pb loss. These results indicated the native AMF contributed to immobilizing Pb in soil and inhibited its migration to crops and the surrounding environment.
Keywords	agricultural land ; benomyl ; corn ; field experimentation ; lead ; research ; runoff ; soil depth ; spores ; subsurface flow ; vesicular arbuscular mycorrhizae ; wet season
Language	English
Dates of publication	2022-09
Publishing place	Elsevier Inc.
Document type	Article
ZDB-ID	205699-9
ISSN	1096-0953 ; 0013-9351
ISSN (online)	1096-0953
ISSN	0013-9351
DOI	10.1016/j.envres.2022.113594
Database	NAL-Catalogue (AGRICOLA)

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