Diversity and species composition of arbuscular mycorrhizal fungi across maize fields in the southern part of Belgium

Alaux, Pierre-Louis; Mison, Coralie; Senés‐Guerrero, Carolina; Moreau, Virginie; Manssens, Gilles; Foucart, Guy; Cranenbrouck, Sylvie; Declerck, Stéphane

doi:10.1007/s00572-020-01007-0

Cited by 11 publications

(8 citation statements)

References 56 publications

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“…The positive effect on AMF diversity was found with an extensive crop rotation including a perennial grass-clover mixture (Oehl et al 2009). Thus, the decrease of AM fungal diversity we found in the systems with crop rotation compared to maize monocropping could be linked to the cowpea selection for a few dominant AM fungal species compared to maize (Johnson et al 2013;Alaux et al 2021). Since different CA practices result in different weed communities (Mhlanga et al unpublished results), this gives different AM fungal communities a higher chance of being promoted within a system.…”

Section: Discussionmentioning

confidence: 80%

Occurrence and diversity of arbuscular mycorrhizal fungi colonising off-season and in-season weeds and their relationship with maize yield under conservation agriculture

et al. 2022

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Weeds are responsible for major crop losses worldwide but can provide beneficial agroecosystem services. This study aimed to elucidate how arbuscular mycorrhizal fungi (AMF) in weeds respond to host identity and conservation agricultural practices. The study was carried out at two locations in Southern Africa during off-season and in-season maize cultivation. Off-season AMF root colonisation, diversity indices and community composition significantly differed among weed species at both locations. Glomus sp. VTX00280 explains most of the AMF community differences. In-season, implementation of conventional tillage with mulching alone (CT + M) or together with crop rotation (CT + M + R) resulted in a 20% increase in AMF colonisation of the constantly occurring weed species, Bidens pilosa (BIDPI) and Richardia scabra (RCHSC), compared with conventional tillage plus rotations (CT + R). The diversity of AMF was highest under no-tillage plus mulching (NT + M). Off-season and in-season AMF structures of both BIDPI and RCHSC were not related, but 39% of the taxa were shared. Structural equation modelling showed a significant effect of the cropping system on weed AMF diversity parameters and weed and maize root colonisation, but no significant influence of weed root AMF traits and maize colonisation was detected on maize yield. This may be explained by the improvement in weed competitive ability, which may have offset the AMF-mediated benefits on yield. Our findings highlight that implementing M and CR to CT and NT positively affected weed AMF colonisation and diversity. The similarity between the off-season and in-season AMF composition of weeds supports the fact that weeds functionally host AMF during the non-crop period.

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Section: Discussionmentioning

confidence: 80%

Occurrence and diversity of arbuscular mycorrhizal fungi colonising off-season and in-season weeds and their relationship with maize yield under conservation agriculture

et al. 2022

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“…Firstly, the proximity of weed species might be invoked and might promote AMF recruitment in the roots of wheat by different pathways. It could be by direct contact between root systems or by a common mycorrhizal network interconnecting plants [ 42 ]. Interestingly, a very recent study showed that weed species were able to transmit their root mycobiota to nearby wheat roots in controlled conditions [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

The Effects of Local Weed Species on Arbuscular Mycorrhizal Fungal Communities in an Organic Winter Wheat (Triticum durum L.) Field in Lebanon

Hayek,

Marchal,

Huc

et al. 2023

Microorganisms

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We examined the potential effects of weed species on the arbuscular mycorrhizal fungi (AMF) in an organic winter wheat (Triticum durum) field in Lebanon. In this agroecosystem, the field and its surroundings were covered with spontaneous vegetation corresponding to local weeds. The coexistence between wheat and weeds did not modify AM fungal community diversity and colonization in T. durum but changed their composition. We evidenced 22 operational taxonomic units (OTUs) specifically shared between wheat associated with weeds (Tdw) and weeds, regardless of their localization and 12 OTUs with an abundance of variation between wheat without neighboring weeds (Td) and Tdw. The number of AM propagules and total C and N contents were higher in soil covered with wheat associated with weeds (TdWsoil) vs. wheat without neighboring weeds (Tdsoil). In greenhouse experiments, the shoot biomass and root mycorrhizal intensity of Medicago sativa, used as a trap plant, were higher using TdWsoil vs. Tdsoil as the inoculum. Positive correlations were observed between soil AM propagule numbers and M. sativa shoot biomass, on the one hand and M. sativa mycorrhizal intensity, on the other hand. Weeds seemed to exert significant effects on root AM fungal composition in T. durum and these effects may contribute to enhanced AMF development in the field.

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“…There are some studies which gave an indication that infectivity and multiplication of AM fungi is affected by many factors like organic amendments, cropping system, fertilization, crop diversity, soil characteristics, soil microflora, agricultural management etc. [16,17,18,19,20,21,22,23]. Therefore, incorporation of SMS in soil might have improved the physical, chemical and biological characteristics of soil and which might have resulted in improved plant growth parameters including root system.…”

Section: Discussionmentioning

confidence: 99%

“…However, its infectivity, multiplication in roots and establishment in soil is found to be affected by many factors like cropping system, fertilization, organic amendments, crop diversity, soil characteristics, soil microflora, agricultural management, etc. [16,17,18,19,20,21,22,23].…”

Section: Introductionmentioning

confidence: 99%

Impact of Spent Mushroom Substrate on Glomus mosseae Establishment in Wheat (Triticum aestivum) and Pearl Millet (Pennisetum glaucum)

Chugh

Mehta

2022

IJPSS

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The application of spent mushroom substrate (SMS) in soil increases yields and improves quality of agriculture produce. Glomus mosseae is a predominant species of arbascular mycorrhizae (AM) fungus in soils and it help the plant in many ways. The substrate from the production process of cultivated mushrooms is a material with a high lignocellulosic content and rich in organic matter, which, when incorporated into the soil, changes its chemical attributes. Thus, this substrate can be used in the preparation of organic compounds, the manufacture of biofertilizers and chemical soil conditioner in semi-arid regions. Thus, the research tried to evaluate the presence of the substrates at different concentrations in the growth, development and establishment of G. mosseae fungi at 45 and 60 days after sowing to help the productivity of wheat and pearl millet for three consecutive years from 2018-19 to 2020-21under screenhouse conditions. One year old button mushroom SMS was mixed in sterile sandy loam soil at 10, 20, 30% (w/w basis) and pure culture of G. mossea was applied at 450-500 sporocarp/kg of soil and then filled with earthen pots of 30 cm diameter. Twenty seeds of wheat cv. WH 1105 were sown in each pot during the third week of November every year and maintained. Similarly, twenty seeds of pearl millet cv. HHB 67 (I) was sown in each pot in first week of July every year and maintained. The plants raised in soil without SMS but inoculated with G. mosseae served as control. The treatments were replicated ten times and the experiments were laid out as per RCBD design. The observations on mycorrhizal colonization (%) and sporocarps numbers per 100g soil were taken at 45 and 60 days after sowing (DAS) in wheat and pearl millet. In wheat cv. WH 1105, the root colonization (%) and sporocarp numbers/100 g soil of G. mosseae were higher when SMS at 30% was applied in soil and lowest in control. These increased further in all treatments at 60 DAS as compared to 45 DAS stage during three years of experimentation. The root colonization at 60 DAS was significantly high at 24.9, 34.8 and 27.9 % when SMS applied in soil at 30% and it was lowest at 20.2, 30.1, 23.1% in control during 2018-19, 2019-20 and 2020-21, respectively. The sporocarp numbers at 60 DAS were also found to be high at 255, 195 and 325 sporocarps/100 g soil when 30% of SMS was applied in soil and lowest at 210, 172, 265 sporocarps/100 g soil in control during 2018-19, 2019-20 and 2020-21, respectively. In pearl millet hybrid HHB-67 (Improved), the root colonization and sporocarp numbers/100 g soil of G. mosseae were higher when SMS at 20% was applied in soil and lowest in control. These increased further in all treatments at 60 DAS as compared to 45 DAS stage during three years. The root colonization at 60 DAS was significantly higher in 34.0, 35.3 and 34.7% when SMS was applied at 20% and it was lowest at 34.3, 33.2, 31.1% in control during 2018-19, 2019-20 and 2020-21, respectively. The sporocarp numbers at 60 DAS were also found to be high at 229, 250 and 174 /100 g soil when SMS at 20% was applied and it was lowest at 219, 205, 150 sporocarps/100 g soil in control during 2018-19, 2019-20 and 2020-21, respectively.

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Diversity and species composition of arbuscular mycorrhizal fungi across maize fields in the southern part of Belgium

Cited by 11 publications

References 56 publications

Occurrence and diversity of arbuscular mycorrhizal fungi colonising off-season and in-season weeds and their relationship with maize yield under conservation agriculture

Occurrence and diversity of arbuscular mycorrhizal fungi colonising off-season and in-season weeds and their relationship with maize yield under conservation agriculture

The Effects of Local Weed Species on Arbuscular Mycorrhizal Fungal Communities in an Organic Winter Wheat (Triticum durum L.) Field in Lebanon

Impact of Spent Mushroom Substrate on Glomus mosseae Establishment in Wheat (Triticum aestivum) and Pearl Millet (Pennisetum glaucum)

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