Arbuscular mycorrhizal fungal diversity in perennial pastures; responses to long-term lime application

Guo, Y-J; Ni, Yu; Raman, Harsh; Wilson, Bree A.L.; Ash, Gavin; Wang, Aisuo; Li, Guangdi D.

doi:10.1007/s11104-011-0976-7

Cited by 23 publications

(13 citation statements)

References 59 publications

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“…Therefore, benefits to plant growth associated with mycorrhizal colonization can occur regardless of soil pH, varying according to the species of mycorrhizal fungi (Cavallazzi et al, 2007). Other studies have also shown that lime application in the field can increase mycorrhizal colonization rates (Aliasgharzad et al, 2010;Schneider et al, 2011;Guo et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Growth, mineral composition, fruit yield, and mycorrhizal colonization of feijoa in response to lime and phosphorus application

Nava

Santos

Costa

et al. 2016

Pesq. agropec. bras.

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-The objective of this work was to investigate the effect of liming and phosphorus fertilization on the growth, mineral composition of the leaves, fruit yield, and mycorrhizal colonization of young feijoa (Acca sellowiana) plants. Treatments consisted of four liming levels -0, 25, 50, and 100% of the dose required to raise the soil pH to 6.5 -and of five levels of P -0, 60, 120, 180, and 240 kg ha -1 P 2 O 5 -, placed in a randomized complete block design, in a split-plot arrangement, with three replicates. The orchard was established in 2010 with the Helena cultivar. In 2012, 2013, and 2014, plant growth was evaluated by measuring trunk perimeter, plant height, and tree canopy width. Mineral composition of the leaves, regarding P, N, K, Ca, and Mg contents, was assessed annually. Mycorrhizal colonization was evaluated in 2012, and fruit yield was determined in 2014. No interaction was observed between the studied factors. P contents had no effect on the evaluated variables. Liming, however, increases plant growth, mycorrhizal colonization, fruit yield, and Ca and Mg leaf contents, besides reducing K leaf contents.Index terms: Acca sellowiana, mineral nutrition, mycorrhizal colonization, nutritional status, phosphorus fertilization, soil acidity.Crescimento, composição mineral, produção e colonização micorrízica de goiabeira serrana em resposta à aplicação de calcário e fósforoResumo -O objetivo deste trabalho foi avaliar o efeito da calagem e da adubação fosfatada no crescimento, na composição mineral das folhas, na produção de frutos e na colonização micorrízica de plantas jovens de goiabeira serrana (Acca sellowiana). Os tratamentos consistiram de quatro níveis de calagem -0, 25, 50 e 100% da dose necessária para elevar o pH do solo a 6,5 -e de cinco níveis de fósforo -0, 60, 120, 180 e 240 kg ha -1 de P 2 O 5 -, dispostos em delineamento de blocos ao acaso, em arranjo de parcelas subdivididas, com três repetições. O pomar foi implantado em 2010 com a cultivar Helena. Em 2012, 2013 e 2014, o crescimento das plantas foi avaliado por meio da medição do perímetro do tronco, da altura das plantas e do diâmetro das copas. A composição mineral das folhas, quanto aos teores de P, N, K, Ca e Mg, foi avaliada anualmente. A colonização micorrízica foi avaliada em 2012, e a produção de frutos foi determinada em 2014. Não houve interação entre os fatores estudados. Os níveis de P não tiveram efeito sobre as variáveis avaliadas. A calagem, no entanto, aumenta o crescimento das plantas, a colonização micorrízica, a produção de frutos e os teores foliares de Ca e Mg, além de ter reduzido o teor foliar de K.Termos para indexação: Acca sellowiana, nutrição mineral, colonização micorrízica, estado nutricional, adubação fosfatada, acidez do solo.

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Section: Resultsmentioning

confidence: 99%

Growth, mineral composition, fruit yield, and mycorrhizal colonization of feijoa in response to lime and phosphorus application

Nava

Santos

Costa

et al. 2016

Pesq. agropec. bras.

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“…Clark (1997) found that maximum enhancement of plant growth in acid soil varied with AMF isolate and soil pH, indicating adaptation of AM isolates to edaphic conditions. Long-term lime application changed soil nutrient availability and increased AMF colonization, but decreased AMF phylotype diversity, implying that soil chemical properties may determine the distribution of AMF in acid soils (Guo et al, 2012). The higher AMF colonization at Al3 compared to Al1 might also be related to the soil available phosphorus concentrations.…”

Section: Discussionmentioning

confidence: 99%

“…300 g spores and sporocarps were obtained. Since the spores isolated from soils were a mixture, the DNA of the soils was extracted and used for AMF identification followed by the method of Guo et al (2012). In total 5 strains were identified, mainly Glomus species (Table 1).…”

Section: Symbiotic Microbesmentioning

confidence: 99%

“…Though the rhizobia have been shown to be sensitive to Al 3+ , AMF are widely distributed in acid soils and show relative tolerance to Al 3+ (Clark, 1997;Guo et al, 2012;Fritz et al, 2010). The formation of mycorrhizae could regulate the relationship between soil aluminum, phosphorus and plant, protecting roots from the Al toxicity (Vandamme et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…These results suggested that AMF from black medick might be effective in low fertility soils, benefiting its wide distribution. Therefore, in the current study, we collected AMF spores from rhizosphere soils growing black medick and identified AMF strains using molecular method (Guo et al, 2012). The AMF spores were inoculated solely or dual inoculated with rhizobia in soils with three Al 3+ levels growing black medick or alfalfa.…”

Section: Introductionmentioning

confidence: 99%

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The Efficiency of Arbuscular Mycorrhizal Fungi in Promoting Alfalfa Growth in Acid Soils

Huang¹,

He²,

Guo³

2017

JAS

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High concentrations of soil Al 3+ in acid soil severely influence the growth of Medicago sativa (alfalfa). The objective of the current study was to analyze whether Arbuscular Mycorrhizal Fungi (AMF) inoculation could improve alfalfa growth in acid soils. A two-way completely randomized factorial design was employed for M. sativa and M. lupulina (black medick) with two inoculations (rhizobia and AMF) and three Al 3+ levels, and replicated four times. The soil Al 3+ levels were adjusted to 900 mg/kg, 1000 mg/kg and 1100 mg/kg. Spores of AMF were isolated directly from rhizosphere soils of black medick. The rhizobia were isolated from root nodules in fields separately from two plant species. At each Al 3+ level, there were four inoculations, non-inoculation, AMF solely, rhizobia solely and dual-inoculation with AMF and rhizobia. Soil Al 3+ concentration significantly limited above-and below-ground growth of both alfalfa and black medick, reducing plant height, branching number, shoot and root weight, and root length, surface area and volume. Compared to rhizobia, AMF showed a higher tolerance to soil Al 3+ . AMF inoculation increased the shoot and root weight of both plant species under most circumstances. Overall, AMF colonization had a trend in increasing the contents of phosphorus in both plant species at all Al 3+ concentrations but not nitrogen and potassium. Dual inoculation significantly increased nodulation ability, enabling both plant species to form nodules at 900 and 1000 mg/kg Al 3+ . Though the soil Al 3+ concentration influenced the efficiency of AMF inoculation, AMF inoculation improved nodulation, increased plant growth and nutrient uptake, suggesting that it was an alternative way in improving alfalfa growth in acid soils.

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Long‐term belowground effects of grassland management: the key role of liming

Heyburn

McKenzie

Crawley

et al. 2017

Ecological Applications

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The functioning of human-managed grassland ecosystems strongly depends on how common management practices will affect grassland "belowground compartment" including soil biogeochemistry and plant roots. Key questions remain about how animal grazing, liming (e.g., the addition of CaCO to soils), and nutrient fertilization might affect, in the long-term, soil nutrient cycling and multiple root traits. Here we focus on a mesotrophic grassland located in Berkshire, UK, where contrasting levels of rabbit grazing, liming, and different inorganic fertilizers have been applied since 1991. We ask how (1) soil nitrogen (N) availability and cycling, (2) total root mass, (3) root mass decomposition, and (4) arbuscular mycorrhizal fungal (AMF) root colonization might respond to 22 years of very different management. We found that liming strongly affected total root mass, root decomposition, root AMF colonization as well as soil N availability and cycling and that these effects were mainly driven by liming-induced increases in soil pH. Increases in soil pH were associated with significant (1) decreases in root mass, (2) increases in root mass decomposability and in the mineralization of N in decomposing root detritus, and (3) increases in AMF infection. Soil pH was also significantly related to greater N availability (i.e., soil NO levels) and to lower δ N natural abundance, which suggests more efficient N uptake by plants in limed soils as we found in our study. The application of multiple nutrients (N, P, K, Mg) also reduced total root mass, while N-only fertilization was associated with greater AMF infection. Surprisingly the long-term impact of grazing was generally weak and not significant on most plant and soil parameters. Despite soil pH affecting most belowground variables, changes in soil pH were not associated with any change in soil C and N stocks. Because liming can improve nutrient cycling (and benefits soil pH and grass yields) without negatively affecting soil C sequestration, we suggest that regular liming applications may provide management solutions for increasing the long-term sustainability of permanent grassland.

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Arbuscular mycorrhizal fungal diversity in perennial pastures; responses to long-term lime application

Cited by 23 publications

References 59 publications

Growth, mineral composition, fruit yield, and mycorrhizal colonization of feijoa in response to lime and phosphorus application

Growth, mineral composition, fruit yield, and mycorrhizal colonization of feijoa in response to lime and phosphorus application

The Efficiency of Arbuscular Mycorrhizal Fungi in Promoting Alfalfa Growth in Acid Soils

Long‐term belowground effects of grassland management: the key role of liming

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