Native maize landraces from Los Tuxtlas, Mexico show varying mycorrhizal dependency for P uptake

Sangabriel-Conde, Wendy; Negrete‐Yankelevich, Simoneta; Maldonado-Mendoza, Ignacio E.; Aguilar, Dora Trejo

doi:10.1007/s00374-013-0847-x

Cited by 46 publications

(31 citation statements)

References 68 publications

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“…Communities of AMF, which strongly depend on soil characteristics (Liu et al, 2012), drive mycorrhizal responsiveness (Wagg et al, 2011). Mycorrhizal dependency (Sangabriel-Conde et al, 2014) as well as P absorption capacity (Ortas et al, 2011) varies between maize landraces and hybrids. In wheat, cultivars shape distinctive communities in conventional agroecosystems and cultivareAMF interactions show complex patterns (Mao et al, 2014).…”

Section: Genetic Traits Of Plantemicroorganisms Relationships Involvementioning

confidence: 99%

Advances and Perspectives to Improve the Phosphorus Availability in Cropping Systems for Agroecological Phosphorus Management

Faucon

Houben

Reynoird

et al. 2015

Advances in Agronomy

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Section: Genetic Traits Of Plantemicroorganisms Relationships Involvementioning

confidence: 99%

Advances and Perspectives to Improve the Phosphorus Availability in Cropping Systems for Agroecological Phosphorus Management

Faucon

Houben

Reynoird

et al. 2015

Advances in Agronomy

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“…Because AMF are a key functional group in terrestrial ecosystems (van der Heijden et al 1998a), more studies are needed to qualitatively evaluate their performance in the environment and to understand the effects of the conversion of natural areas to pasture and agricultural systems. In this context, evaluation of the morphological and functional diversity of AMF in the Biosphere Reserve Los Tuxtlas can contribute to increased knowledge on the distribution of these fungi as well as provide useful information about the functional role of AMF in this biome (Sangabriel-Conde et al 2014;Varela et al 2009). This study was designed to evaluate whether disturbance and intensification of land use adversely affect the functionality of AMF and to determine the diversity of these symbionts under different land uses.…”

Section: Introductionmentioning

confidence: 98%

Disturbance and land use effect on functional diversity of the arbuscular mycorrhizal fungi

2015

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The arbuscular mycorrhizal fungal diversity in Mexico has not been intensively studied. Although some studies have reported the presence of 29 % of the reported species in the world, the knowledge regarding their functional diversity is poor. The aim of this study was to evaluate the impact of the disturbance on arbuscular mycorrhizal fungi (AMF) functional diversity. Three sites at the Biosphere Reserve Los Tuxtlas in the state of Veracruz were selected for this study, according to the disturbance gradient and the land use: López Mateos (LM), San Fernando (SF), and Venustiano Carranza (VC) (with low, medium and high disturbance, respectively). The land use in each site includes milpa and pasture. High percentages of root colonization, spore abundance and spore viability were found on LM soils. Additionally, 100 % of the pasture soils have a high mycorrhizal infective potential (MIP). In addition, the fungi consortiums coming from that site promote the highest mycorrhizal growth response (MGR), with increases ranging from 74.1 to 194.6 % over the control treatment. SF soils had high percentages of root colonization and spore viability, whereas only 20 % of these soils had a high MIP, and their MGR promoted increases ranged from 14.6 to 120.4 % over the control. Soils from VC had the lowest percentages of root colonization and spore viability. Only 10 % of the soils had high MIP, and their MGR was not better than the control. These results indicate that the soil disturbance or use changes negatively affect the functionality of AMF.

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“…P acquiring capacity of the F1-Hybrid is severely lower than those of some landrace varieties, despite a high mycorrhizal dependency. According to Sangabriel-Conde et al (2014) [34] some landraces appear to have adaptive mechanisms to obtain P more efficiently, a trait important in milpa cultivation systems [34]. In contrast, Fang et al [36] (2014) provide evidence that modern breeding towards greater and more stable yield can also promote water use efficiency.…”

Section: Crop Nutrient Use Efficiencymentioning

confidence: 99%

“…The crop nutrient use efficiency describes the capacity of a variety to use available soil nutrients in an efficient way [34]. We found six studies (five experiments and one conceptual paper) that use crop nutrient use efficiency as a response variable comparing landraces against modern varieties.…”

Section: Crop Nutrient Use Efficiencymentioning

confidence: 99%

“…In terms of maize landraces, Lafitte et al [35] found that landraces have a higher capability to use available nitrogen (N) under limited N-levels compared to modern varieties and therefore, perform better in N-limited environments, although modern varieties outyielded landraces under optimal farming conditions. Sangabriel-Conde et al (2014) [34] conducted a greenhouse experiment evaluating the response of maize landraces and a F1-hybrid maize variety to arbuscular mycorrhizal fungi under different phosphorus (P) levels. Results show that local landraces interacted better with mycorrhiza resulting in an enhanced P-uptake.…”

Section: Crop Nutrient Use Efficiencymentioning

confidence: 99%

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More than Yield: Ecosystem Services of Traditional versus Modern Crop Varieties Revisited

et al. 2018

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Agricultural intensification with modern plant breeding focuses on few high-yielding crops and varieties. The loss of traditional crop species and variety diversity contributes to the current decline of provisioning, regulating, and cultural ecosystem services, as reported in the Millennium Ecosystem Assessment. Access to local and adapted varieties is pivotal for resilient agroecosystems, in particular under current global change. We reviewed the scientific literature to understand the role of different crop varieties for ecosystem services, comparing the performance and perception of traditional landraces versus modern varieties and ask the following questions: 1. Do landraces and modern varieties differ in terms of provisioning and regulating ecosystem services? 2. When and why do farmers prefer cultural ecosystem services of landraces over high-yielding varieties? Based on 41 publications, our results document that modern varieties are preferred over landraces because of their typically higher provisioning services such as crop yield. However, landraces often guarantee higher provisioning services under non-optimal farming conditions. Landraces can show high resilience under harsh environmental conditions and are a trusted source achieving stable crop yield (e.g., under droughts stress). Regulating services such as resistance against pests and diseases appear to often become lost during breeding for high-yielding, modern varieties. Furthermore, small-scale farmers typically prefer local landraces due to regional cultural features such as family traditions and cooking characteristics for special dishes. In conclusion, both landraces and modern varieties have merit depending on the farmers' priorities and the social-ecological context. In any case, maintaining and restoring the huge diversity of landrace varieties is necessary for sustaining current and future needs.

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Native maize landraces from Los Tuxtlas, Mexico show varying mycorrhizal dependency for P uptake

Cited by 46 publications

References 68 publications

Advances and Perspectives to Improve the Phosphorus Availability in Cropping Systems for Agroecological Phosphorus Management

Advances and Perspectives to Improve the Phosphorus Availability in Cropping Systems for Agroecological Phosphorus Management

Disturbance and land use effect on functional diversity of the arbuscular mycorrhizal fungi

More than Yield: Ecosystem Services of Traditional versus Modern Crop Varieties Revisited

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