Arbuscular mycorrhizal soil infectivity and spores distribution across plantations of tropical, subtropical and exotic tree species: a case study from the forest reserve of <scp>B</scp>andia, <scp>S</scp>enegal

Sene, Godar; Thiao, Mansour; Manga, Anicet; Kane, Aboubacry; Samba-Mbaye, Ramatoulaye; Mbaye, Mame Samba; Khasa, Damase P.; Sylla, Samba Ndao

doi:10.1111/j.1365-2028.2011.01315.x

Cited by 11 publications

(11 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently this iconic tree is genetically identified as V. pachyceras based on multi-locus plastid gene sequences (Suleiman et al, 2018). Many members of this genus are recognized as species that are useful for re-vegetation of water-stressed and low-nutrient soil environments (Sene et al, 2012b; Sene and Sylla, 2014). V. pachyceras was, however, damaged by the gulf war in 1990 and, the remaining plants patchiness are under the threat of extinction (Kaitharan, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, trees in desert regions often represent “fertility islands” for many species (Rodríguez-Zaragoza et al, 2008; Kavamura et al, 2013), which in turn influence long-term vegetation dynamics and ecosystem processes. Moreover, they have a role in combating land degradation through stabilizing soil surfaces by preventing soil erosion and in facilitating plant recruitment and survivorship (El-Sheikh et al, 2010; Sene et al, 2012b, 2013; Kavamura et al, 2013; Sene and Sylla, 2014).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of the Diversity of Fungal Community Composition Associated With Vachellia pachyceras and Its Rhizosphere Soil From Kuwait Desert

et al. 2019

View full text Add to dashboard Cite

This research examined the general soil fungi and AM fungal communities associated with a Lonely Tree species (Vachellia pachyceras) existing in the Sabah Al-Ahmad Natural Reserve located at the Kuwait desert. The goals of the study were to describe the general fungal and AM fungal communities present in the rhizospheric, non-rhizospheric soils and roots of V. pachyceras, respectively, as well as local and non-local V. pachyceras seedlings when grown under standard nursery growing environments. Soil and root samples were analyzed for an array of characteristics including soil physicochemical composition, and culture-independent method termed PCR-cloning, intermediate variable region of rDNA, the large subunit (LSU) and internal transcribed spacer (ITS) region sequence identifications. The results reveal that the fungal phylotypes were classified in four major fungal phyla namely Ascomycota, Basidiomycota, Chytridiomycota, and Zygomycota. The largest assemblage of fungal analyses showed communities dominated by members of the phylum Ascomycota. The assays also revealed a wealth of incertae sedis fungi, mostly affiliated to uncultured fungi from diverse environmental conditions. Striking difference between rhizosphere and bulk soils communities, with more fungal diversities and Operational Taxonomic Units (OTUs) richness associated with both the field and nursery rhizosphere soils. In contrast, a less diverse fungal community was found in the bulk soil samples. The characterization of AM fungi from the root system demonstrated that the most abundant and diversified group belongs to the family Glomeraceae, with the common genus Rhizophagus (5 phylotypes) and another unclassified taxonomic group (5 phylotypes). Despite the harsh climate that prevails in the Kuwait desert, studied roots displayed the existence of considerable number of AM fungal biota. The present work thus provides a baseline of the fungal and mycorrhizal community associated with rhizosphere and non-rhizosphere soils and roots of only surviving V. pachyceras tree from the Kuwaiti desert and seedlings under nursery growing environments.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of the Diversity of Fungal Community Composition Associated With Vachellia pachyceras and Its Rhizosphere Soil From Kuwait Desert

et al. 2019

View full text Add to dashboard Cite

show abstract

“…However, a study conducted in Benin showed an equal distribution between Glomus and Scutellospora species in a woodland of Isoberlina doka (Houngnandan et al, 2009). This AMF diversity described in Benin is low as compared to that found in the reserve of Bandia in Senegal (Sene et al, 2012) and those in the arid and semi-arid areas of Africa and elsewhere (Bâ et al, 1996;Mohammad et al, 2003;Bouamri et al, 2006;Ndoye et al, 2012;Kachkouch et al, 2012). In Senegal, molecular diversity studies of AMF performed on acacia trees showed only the presence of Glomus in their roots, suggesting a preferential mycorrhization of these trees because other genera have been isolated in their rhizosphere (Manga et al, 2007;Ndoye et al, 2012).…”

Section: Introductionmentioning

confidence: 76%

“…The genus Glomus is the most diverse in our study with six species, representing 40% of all the species found in roots of cowpea. The predominance of this genus in most ecosystems like Senegal (Manga et al, 2007;Sene et al, 2012 ;Ndoye et al, 2012), China (Zhao and Zhao, 2007;Wang et al, 2008) Bootstrap support values for branches were estimated from 1.00 replicates. The corresponding accession numbers ranging from KC588975 to KC599000 were given by Genbank.…”

Section: Discussionmentioning

confidence: 99%

Arbuscular mycorrhizal fungi (AMF) communities associated with cowpea in two ecological site conditions in Senegal

Diop¹,

Ndoye²,

Kane³

et al. 2015

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

The objective of this study was to characterize the diversity of arbuscular mycorrhizal fungal (AMF) communities colonizing the roots of Vigna unguiculata (L.) plants cultivated in two different sites in Senegal. Roots of cowpea plants and soil samples were collected from two fields (Ngothie and Diokoul) in the rural community of Dya (Senegal). Microscopic observations of the stained roots indicated a high colonization rate in roots from Ngothie site as compared to those from Diokoul site. The partial small subunit of ribosomal DNA genes was amplified from the genomic DNA extracted from these roots by polymerase chain reaction (PCR) with the universal primer NS31 and a fungal-specific primer AML2. Nucleotide sequence analysis revealed that 22 sequences from Ngothie site and only four sequences from Diokoul site were close to those of known arbuscular mycorrhizal fungi. Also, 47.6% of the clones from Ngothie site and 89.47% from Diokoul site were not close to known AMF. A total of 15 operational taxonomic units (OUT) were identified. Phylogenetic analyses showed that these clones belonged to the genera Glomus, Sclerocystis, Rhizophagus, Scutellospora, Gigaspora, Racocetra, Acaulospora and Redeckera. The genus Glomus is the most represented with six OTU, representing 40% of all OTU.

show abstract

“…The results are consistent with a previous report by Onguene and Kuyper (2001), who demonstrated interspecific variability in AMF colonization within the same rainforest site in Cameroon. In Senegal, the positive role of the legume herb Cassia obtusifolia L. in the efficient dispersal of AMF propagules has been demonstrated in both natural and planted forests (Duponnois et al, 2001; Sene et al, 2012; Sene et al, 2012). Results from Zhang et al (2004) in logged and preserved forest areas in the subtropical region of China, and Guadarrama et al (2008) in a secondary dry forest in Oaxaca, Mexico, also suggest that herbaceous plants may be particularly efficient in spreading AMF.…”

Section: Discussionmentioning

confidence: 99%

Uncovering the complex relationship between plant diversity, soil properties, and mycorrhizal inoculum potential in threatened Miombo woodlands

Kaumbu,

Sene,

Stefani

et al. 2024

Land Degrad Dev

Self Cite

View full text Add to dashboard Cite

Arbuscular mycorrhizal fungi (AMF) are key members of soil microbial communities and play a key role in regulating ecosystem processes. However, the mutual interdependence of plants and AMF in threatened Miombo woodlands has not yet been fully elucidated. In this study, we investigated the relationship between plant ecological indicators and soil mycorrhizal inoculum potential (MIP) in the Miombo forest fallow of Haut‐Katanga, Democratic Republic of Congo, and identified plant species that positively influence soil MIP. We conducted a floristic inventory on 32 plots and collected soil cores for physicochemical and AMF characterization. Trap cultures using Crotalaria juncea seedlings were performed to determine the soil MIP. We also tested the AMF colonization status of randomly collected living roots of mature woody and dominant herbaceous species to identify explanatory variables for MIP. Our results showed that MIP was twice as high in silty clay soils (63.13%) than in clay soils (30%). Furthermore, MIP increased accordingly with the relative abundance of a group of woody and herbaceous species (e.g., Albizia adianthifolia, Baphia bequaertii, and Setaria pumila) and decreased with others (e.g., Combretum collinum, Harungana madagascariensis and Hyparrhenia diplandra). Linear regressions showed that MIP increased significantly with the specific richness of woody species identified as indicators and with the amount of annual herbs. Woody legumes with high root colonization by AMF appeared to be refuge plants, and primary AMF dispersal vectors, increasing soil MIP. This study provides baseline data that can be used to formulate ecological restoration strategies, including soil and vegetation protection.

show abstract

Arbuscular mycorrhizal soil infectivity and spores distribution across plantations of tropical, subtropical and exotic tree species: a case study from the forest reserve of Bandia, Senegal

Cited by 11 publications

References 36 publications

Assessment of the Diversity of Fungal Community Composition Associated With Vachellia pachyceras and Its Rhizosphere Soil From Kuwait Desert

Assessment of the Diversity of Fungal Community Composition Associated With Vachellia pachyceras and Its Rhizosphere Soil From Kuwait Desert

Arbuscular mycorrhizal fungi (AMF) communities associated with cowpea in two ecological site conditions in Senegal

Uncovering the complex relationship between plant diversity, soil properties, and mycorrhizal inoculum potential in threatened Miombo woodlands

Contact Info

Product

Resources

About