Diversity of halophytes and identification of arbuscular mycorrhizal fungi colonising their roots in an abandoned and sustained part of Sečovlje salterns

Sonjak, Silva; Udovič, Metka; Wraber, Tone; Likar, M; Regvar, Marjana

doi:10.1016/j.soilbio.2009.06.006

Cited by 54 publications

(34 citation statements)

References 45 publications

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“…Another factor that has to be taken into account in such habitats is drought, which can be more important than salt for the abundance of AM fungi in halophytes (Füzy et al 2008). Attempts to identify the AM fungal species associated with plants in saline habitats revealed that at least in Europe, most isolates belong to the Glomus geosporum/Glomus caledonium cluster (Hildebrandt et al 2001;Landwehr et al 2002;Sonjak et al 2009). In addition to arbuscular mycorrhiza, some papers report the occurrence of so-called dark septate endophytes (DSEs).…”

Section: Interaction Of Micro-organisms With Host Plantsmentioning

confidence: 99%

“…In addition to arbuscular mycorrhiza, some papers report the occurrence of so-called dark septate endophytes (DSEs). These root colonisers can be found in diverse habitats (Jumpponen and Trappe 1998) and have been detected in saline environments (Barrow and Aaltonen 2001;Sonjak et al 2009). These associations can be obligate: it is, for example, impossible to remove DSEs from the fourwing salt bush even if the plants have been grown from calli (Barrow et al 2004).…”

Section: Interaction Of Micro-organisms With Host Plantsmentioning

confidence: 99%

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Properties of the halophyte microbiome and their implications for plant salt tolerance

Ruppel

Franken

Witzel

2013

Functional Plant Biol.

145

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Abstract. Saline habitats cover a wide area of our planet and halophytes (plants growing naturally in saline soils) are increasingly used for human benefits. Beside their genetic and physiological adaptations to salt, complex ecological processes affect the salinity tolerance of halophytes. Hence, prokaryotes and fungi inhabiting roots and leaves can contribute significantly to plant performance. Members of the two prokaryotic domains Bacteria and Archaea, as well as of the fungal kingdom are known to be able to adapt to a range of changes in external osmolarity. Shifts in the microbial community composition with increasing soil salinity have been suggested and research in functional interactions between plants and micro-organisms contributing to salt stress tolerance is gaining interest. Among others, microbial biosynthesis of polymers, exopolysaccharides, phytohormones and phytohormones-degrading enzymes could be involved.

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Section: Interaction Of Micro-organisms With Host Plantsmentioning

confidence: 99%

Section: Interaction Of Micro-organisms With Host Plantsmentioning

confidence: 99%

Properties of the halophyte microbiome and their implications for plant salt tolerance

Ruppel

Franken

Witzel

2013

Functional Plant Biol.

145

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“…O que se observa nos trabalhos de levantamento são tendências de ocorrências de FMA em função de algumas variáveis do solo. Sonjak et al(2009) trabalhando em região de solos com alta salinidade, verificaram a ocorrência de seis diferentes espécies de FMA, em sua maioria pertencentes ao gênero Glomus. Caproni et al (2007) observaram o predomínio de Acaulospora seguido de Glomus em solos contaminados com resíduo de mineração de bauxita no Pará.…”

Section: Tratamentosunclassified

Fungos micorrízicos arbusculares em sistema de aléias no Estado do Maranhão, Brasil

et al. 2010

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RESUMOSistemas em aléias podem consistir numa solução para o uso da terra em regiões do Trópico Úmido. A relação dessa forma de manejo com a dinâmica dos fungos micorrízicos arbusculares (FMA) Arbuscular mycorrhizal fungi in an alley cropping system in the state of Maranhão, Brazil ABSTRACTAlley cropping systems may be a solution for land use in tropical regions. How land use is connected to mycorrhizal arbuscular fungi (AMF) is poorly understood, especially in the tropics. The aim of this study was to evaluate the influence of leguminous trees in an alley cropping system in regard to the infectivity and diversity of native AMF species in São Luís, Maranhão, Brazil. Soil samples were collected in an experimental area of the Universidade Estadual do Maranhão (UEMA) -São Luís, in two seasons (July/2006 and April/2007), two distances (0 m and 0.5 m) from the trunk of three leguminous trees (Leucaena leucocephala, Clitoria fairchildiana e Acacia mangium), and in a control area 0-20 cm deep. Soil samples were used to evaluate the infectivity of AMF, density and diversity of glomerospores. The alley cropping systems increased the infectivity of AMF which varied according to the leguminous tree species, raining season and distance from trees. Sixteen AMF species of five genera were identified in the area, and Scutellospora was the most representative genus.

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“…(Rosendahl and Stukenbrock 2004;Stukenbrock and Rosendahl 2005), 18S (Sonjak et al 2009b;Yamato et al 2008Yamato et al , 2012, or ITS (Wilde et al 2009) rDNA sequences. Recently, Yamato et al (2008Yamato et al ( , 2012 showed that AMF populations could adapt to a salt-stressed environment, and that the AMF community associated with a coastal plant Ixeris repens showed a significant relationship between the distribution of phylotypes and the environmental variables that were examined (Yamato et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Differential effects of abiotic factors and host plant traits on diversity and community composition of root-colonizing arbuscular mycorrhizal fungi in a salt-stressed ecosystem

Guo

Gong

2013

Mycorrhiza

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Arbuscular mycorrhizal fungi (AMF) were investigated in roots of 18 host plant species in a salinized south coastal plain of Laizhou Bay, China. From 18 clone libraries of 18S rRNA genes, all of the 22 AMF phylotypes were identified into Glomus, of which 18 and 4 were classified in group A and B in the phylogenetic tree, respectively. The phylotypes related to morphologically defined Glomus species occurred generally in soil with higher salinity. AMF phylotype richness, Shannon index, and evenness were not significantly different between root samples from halophytes vs. non-halophytes, invades vs. natives, or annuals vs. perennials. However, AMF diversity estimates frequently differed along the saline gradient or among locations, but not among pH gradients. Moreover, UniFrac tests showed that both plant traits (salt tolerance, life style or origin) and abiotic factors (salinity, pH, or location) significantly affected the community composition of AMF colonizers. Redundancy and variation partitioning analyses revealed that soil salinity and pH, which respectively explained 6.9 and 4.2 % of the variation, were the most influential abiotic variables in shaping the AMF community structure. The presented data indicate that salt tolerance, life style, and origin traits of host species may not significantly affect the AMF diversity in roots, but do influence the community composition in this salinized ecosystem. The findings also highlight the importance of soil salinity and pH in driving the distribution of AMF in plant and soil systems.

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Diversity of halophytes and identification of arbuscular mycorrhizal fungi colonising their roots in an abandoned and sustained part of Sečovlje salterns

Cited by 54 publications

References 45 publications

Properties of the halophyte microbiome and their implications for plant salt tolerance

Properties of the halophyte microbiome and their implications for plant salt tolerance

Fungos micorrízicos arbusculares em sistema de aléias no Estado do Maranhão, Brasil

Differential effects of abiotic factors and host plant traits on diversity and community composition of root-colonizing arbuscular mycorrhizal fungi in a salt-stressed ecosystem

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