Plant growth, nutrient acquisition and mycorrhizal symbioses of a waterlogging tolerant legume (Lotus glaber Mill.) in a saline-sodic soil

Mendoza, Rodolfo; Escudero, Viviana; García, Ileana

doi:10.1007/s11104-005-2501-3

Cited by 59 publications

(45 citation statements)

References 39 publications

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“…Moreover, it is observed that there are multiple interactions among the factors. There is also a close relationship between AM colonization and the abovementioned effects, especially expected P absorption and utilization efficiency (Miyasaka and Habte, 2001;Feng et al, 2003;Mendoza et al, 2005). This agrees with the literature where results of pot experiments are reported to have responses that are more marked than those occurring in the field (Smith et al, 2011).…”

Section: Discussionsupporting

confidence: 90%

Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment

Castillo¹,

Acuña

Zagal³

et al. 2013

Chilean J. Agric. Res.

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The response to P and water deficiencies of forage Lotus species has not been sufficiently studied in the Andisol and Vertisol soil orders in Chile's marginal areas. A pot experiment under cover was carried out between October 2007 and March 2008 to study the effects of P and soil water availability (SWA) on DM production, P absorption, and P use efficiency in Lotus spp. The experiment included three Lotus (L. corniculatus L., L. tenuis Waldst. & Kit. ex Willd., and L. uliginosus Schkuhr) species, two soils (Andisol and Vertisol), two contrasting P levels (low and high), and two SWA levels (10% and 100%). A completely randomized design with a 3 × 2 × 2 × 2 factorial arrangement with four replicates was used. Accumulated shoot and root DM, P absorption and efficiency, and arbuscular mycorrhizal (AM) colonization were measured. Phosphorus absorption was significantly higher in Andisol with 100% SWA and high P in the three species, which was reflected in P efficiency where the species exhibited higher P absorption efficiency (PAE) and P utilization efficiency (PUE) with low P, and mean of the three species with low P and high SWA. When the P level was low, L. uliginosus showed the highest PAE and L. corniculatus exhibited the highest PUE. Phosphorus efficiency was also influenced by AM colonization since on the average mycorrhization in the three species was significantly higher in the low P treatments. Differences existed among species for DM production, response to P, P absorption, PAE, and PUE.

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Section: Discussionsupporting

confidence: 90%

Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment

Castillo¹,

Acuña

Zagal³

et al. 2013

Chilean J. Agric. Res.

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“…However, our results suggest that this group does not denitrify perhaps explaining why AMF root colonization is often reduced under waterlogged conditions (e.g. Mendoza et al, 2005;Ipsilantis and Sylvia, 2007).…”

Section: Discussionmentioning

confidence: 68%

Symbiotic relationships between soil fungi and plants reduce N2O emissions from soil

et al. 2013

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N 2 O is a potent greenhouse gas involved in the destruction of the protective ozone layer in the stratosphere and contributing to global warming. The ecological processes regulating its emissions from soil are still poorly understood. Here, we show that the presence of arbuscular mycorrhizal fungi (AMF), a dominant group of soil fungi, which form symbiotic associations with the majority of land plants and which influence a range of important ecosystem functions, can induce a reduction in N 2 O emissions from soil. To test for a functional relationship between AMF and N 2 O emissions, we manipulated the abundance of AMF in two independent greenhouse experiments using two different approaches (sterilized and re-inoculated soil and non-mycorrhizal tomato mutants) and two different soils. N 2 O emissions were increased by 42 and 33% in microcosms with reduced AMF abundance compared to microcosms with a well-established AMF community, suggesting that AMF regulate N 2 O emissions. This could partly be explained by increased N immobilization into microbial or plant biomass, reduced concentrations of mineral soil N as a substrate for N 2 O emission and altered water relations. Moreover, the abundance of key genes responsible for N 2 O production (nirK) was negatively and for N 2 O consumption (nosZ) positively correlated to AMF abundance, indicating that the regulation of N 2 O emissions is transmitted by AMF-induced changes in the soil microbial community. Our results suggest that the disruption of the AMF symbiosis through intensification of agricultural practices may further contribute to increased N 2 O emissions.

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“…According to Skinner & Comas (2010), drought stress increased not only the root depth of six legumes but also the length of their roots. On the other hand, waterlog-ging increased the root crown diameter of Lotus glaber in a study by Mendoza et al (2005).…”

Section: Introductionmentioning

confidence: 92%

Root system variability in common legumes in Central Europe

Chmelíková

Hejcman

2012

Biologia

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The aim of this study was to provide an overview of field measured root systems of common legume species growing under different environmental conditions in the Czech Republic. The plants, 214 individuals of 21 selected legume species from the tribes Galegeae (Astragalus glycyphyllos, Lupinus polyphyllus), Genisteae (Cytisus scoparius, Genista tinctoria), Loteae (Anthyllis vulneraria, Lotus corniculatus, Securigera varia), Trifolieae (Trifolium arvense, T. campestre, T. medium, T. pratense, T. repens) and Vicieae (Lathyrus pratensis, L. sylvestris, Vicia angustifolia, V. cracca, V. hirsuta), were collected using the monolith method from 27 sites. A rhizome was present in seven species and the maximum branching order was three for 15 species and five for five species. Recovery buds were recorded on the root system of eight species and woodiness was recorded in 11 species. Root diameter ranged from 1 to 12 mm -the minimum diameter was recorded in annuals and the maximum in perennials. The colour of the root system ranged from light to dark. In six species, young roots were light and older roots were dark. Globose, cylindrical, branched, fan-like and ruff-like nodules were recorded. Only one type of nodule shape was recorded in 11 species, two in seven species and three or four in three species. Nodules measured up to 2 mm in nine species, from 2 to 4 mm in three species and more than 4 mm in nine species. Legume root systems are highly variable and the variability was due to Raunkier's life forms rather than membership of a tribe.

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Plant growth, nutrient acquisition and mycorrhizal symbioses of a waterlogging tolerant legume (Lotus glaber Mill.) in a saline-sodic soil

Cited by 59 publications

References 39 publications

Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment

Phosphorus absorption and use efficiency by Lotus spp. under water stress conditions in two soils: A pot experiment

Symbiotic relationships between soil fungi and plants reduce N2O emissions from soil

Root system variability in common legumes in Central Europe

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