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| Registros recuperados: 21 | |
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| Santos,Adriana A.; Agustini,José A.; Maltoni,Katia L.; Cassiolato,Ana M. R.. |
| ABSTRACT The aim of this study was to evaluate, through mycorrhization (root colonization and number of spores of arbuscular mycorrhizal fungi - AMF), leaf acid phosphatase and soil chemical characteristics, the effects of the addition of residues (macrophytes and ash), hydrogel and the reintroduction of microorganisms in a degraded area cultivated with jatropha. Degradation occurred when the surface soil was removed during the construction of a hydroelectric power plant. The experiment was set in a randomized block design, using a 2 x 2 x 4 factorial scheme, i.e., two inoculation treatments (with and without soil-inoculum), two hydrogel treatments (with and without) and four with the addition of residues (macrophytes - MAC, ash, MAC + ash and control,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas L.; Arbuscular mycorrhiza; Hydrogel; Macrophytes; Cerrado.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000400372 |
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| Duarte,Lorrane Marques; Bertini,Simone Cristina Braga; Stürmer,Sidney Luiz; Lambais,Marcio Rodrigues; Azevedo,Lucas Carvalho Basilio. |
| ABSTRACT Arbuscular mycorrhizal fungi (AMF) play an important role in plant community productivity and structure, and so studying the factors that affect the diversity and structure of this fungal community is important for understanding their ecology in tropical forests. We investigated AMF spore communities and root colonization under three forest phytophysiognomies (Restinga Forest, REF; Lowland Ombrophilous Dense Forest, LLF; and Montane Ombrophilous Dense Forest, MTF). Spore abundance was lowest in LLF and highest in REF, with no statistical differences relative to MTF. Spore diversity indices and root colonization rates were not statistically different among the phytophysiognomies. However, principal components analysis revealed that AMF community... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arbuscular mycorrhiza; Glomeromycotina; Hierarchical partitioning; Plant community; Soil attributes; Soil microbiology; Tropical rain forest. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100050 |
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| Becerra,Alejandra; Bartoloni,Norberto; Cofré,Noelia; Soteras,Florencia; Cabello,Marta. |
| Arbuscular mycorrhizal fungi (AMF) colonize land plants in every ecosystem, even extreme conditions such as saline soils. In the present work we report for the first time the mycorrhizal status and the vertical fungal distribution of AMF spores present in the rhizospheric soil samples of four species of Chenopodiaceae (Allenrolfea patagonica, Atriplex argentina, Heterostachys ritteriana and Suaeda divaricata) at five different depths in two saline of central Argentina. Roots showed medium, low or no colonization (0-50%). Nineteen morphologically distinctive AMF species were recovered. The number of AMF spores ranged between 3 and 1162 per 100 g dry soil, and AMF spore number decreased as depth increased at both sites. The highest spore number was recorded... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arbuscular mycorrhiza; Saline environments; Soil profile; Vertical distribution; Mycorrhizal status. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200029 |
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| MIRANDA, J. C. C. de; MIRANDA, L. N. de. |
| ABSTRACT: The arbuscular mycorrhizal fungi in the soil may establish an association with plant roots (mycorrhiza) which benefits the nutrient absorption by the plants and increase the effects of the applied inputs on plant growth. Then, to make profit of this association, it is recommended to increase and diversity fungi in the soil, mainly in those where its population is generally low, as in the cerrado soil. The crop rotation is an agronomic practice that improves the propagation of the arbuscular mycorrhizal fungi in the soil and stimulates mycorrhiza establishment and its effects in plant growth. An adequate rotational sequence to improve formation impplies in the use of mycorrhizal dependent cultures. A table, indicating the percentage of mycorrhizal... |
| Tipo: Folhetos |
Palavras-chave: Arbuscular mycorrhiza; Micorrhizae dependency index; Cerrado; Micorriza; Solo; Plant growth. |
| Ano: 2004 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569242 |
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| Oros Ortega, Iván. |
| En plántulas de C. odorata cultivadas en vivero se evaluó el efecto de seis tratamientos (TS) en la tasa de crecimiento en altura (TCA), diámetro (TCD) y tasa de crecimiento relativo (TCR), peso fresco y seco de las plántulas. Se utilizó un diseño completamente al azar con un arreglo factorial (2 x 3), los TS consistieron de una combinación de los factores: porcentaje de defoliación (0, 50 y 90) e inoculación con Glomus intraradices (con y sin inoculación). Además, se diagnosticó el estado actual de plantaciones de cedro en la zona de influencia del Campus Veracruz a través de una apreciación rural rápida. A los seis meses del experimento plantas de TS con inoculación, independientemente del nivel de defoliación, presentaron mayor TCD (F= 100.45,... |
| Tipo: Tesis |
Palavras-chave: Cedrela odorata; Micorriza arbuscular; Glomus intraradices; Defoliación; Maestría; Agroecosistemas Tropicales; Arbuscular mycorrhiza; Defoliation. |
| Ano: 2009 |
URL: http://hdl.handle.net/10521/1590 |
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| Xu,Hongwen; Lu,Yan; Zhu,Xiancan. |
| ABSTRACT To investigate the effect of arbuscular mycorrhiza fungi on maize growth, osmoregulation substances and photosynthetic physiology, a popular maize variety ZD 958 was measured under potted condition. Arbuscular mycorrhiza (AM) symbiosis promoted plant growth, and enhanced plant height, leaf length, mean leaf width and dry weight. Higher soluble sugar and protein, but lower proline concentrations were detected in AM seedlings than corresponding non-AM seedlings. Quantum yield of PSII photochemistry and potential photochemical efficiency increased by arbuscular mycorrhiza fungi, meanwhile, AM plants had lower primary fluorescence but higher maximal fluorescence and variable fluorescence than non-AM plants. AM enhanced apparent quantum efficiency,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arbuscular mycorrhiza; Maize; Osmotic adjustment; Light response curve. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100435 |
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| Bressan,Wellington. |
| Nutrients media (Murashige & Skoog, Hoagland & Arnon and White's media) supplemented or not with sucrose and substrates (vermiculite, agar and natrosol) were tested for their effects on plant development and root colonization of micropropagated sweet potato, cv. White Star, by Glomus etunicatum Becker & Gerdemann (isolate INVAM FL S329). Addition of sucrose (3%) did not affect plant development. However, hyphal growth and root colonization were depressed. Contrasting responses to media nutrient concentration were observed for plant height, root colonization, and hyphal growth. The highest concentration of nutrients in Murashige & Skoog medium improved plant development, but this medium decreased hypha growth and inhibited... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arbuscular mycorrhiza; Micropropagation; Media composition; Substrate. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100006 |
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| Ban,Dean; Goreta Ban,Smiljana; Oplanic,Milan; Horvat,Josipa; Novak,Bruno; Zanic,Katja; Znidarcic,Dragan. |
| Worldwide, a significant increase in watermelon (Citrullus lanatus [Thunb.] Matsum. & Nakai) growing areas has been registered in the last few years. In-row plant spacing has a significant effect on the growth and yield of watermelon, and can enhance competition for water and nutrients. The aim of this study was to investigate the effects of in-row plant spacing (1.0, 1.5, 2.0 and 2.5 m) and arbuscular mycorrhiza (AM) fungi Glomus mosseae inoculations on watermelon growth and yield under field conditions during 2003, 2004, and 2005 year. In 2003, the main vine length, number of leaves, and number of lateral branches were increased quadratically as the in-row plant spacing increased from 1.0 to 2.5. With an increase in the in-row plant spacing the... |
| Tipo: Journal article |
Palavras-chave: Arbuscular mycorrhiza; Fruit; Plant density; Vegetative growth. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400001 |
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| MIRANDA, J. C. C. de; MIRANDA, L. N. de. |
| ABSTRACT: The no-till and conventional cropping systems, which involve low and high soil disturbance, could affect the number and nature of native arbuscular mycorrhizal fungi species in the soil. These, on the other hand, determine the contribution of arbuscular mycorrhiza on crop responses to used inputs and on the efficiency of the planting system itself, as they have different efficiency levels towards the same host plant. Though, the same total number of species and the same species themselves of arbuscular mycorrhizal fungi, were observed in the no-till and conventional cropping systems. Nevertheless, the no-till system practice is recommended, as the mycorrhizal external mycelium, developed during the former cropping, is preserved and stimulates the... |
| Tipo: Folhetos |
Palavras-chave: Arbuscular mycorrhiza; Zero tillage; Cerrado; Fungo; Micorriza; Plantio Direto; Solo; Fungi; Conventional tillage. |
| Ano: 2007 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/557751 |
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| Moreira,Samuel D.; França,André C.; Rocha,Wellington W.; Tibães,Evandro S. R.; Neiva Júnior,Eudes. |
| ABSTRACT Water stress can be alleviated in plants inoculated with arbuscular mycorrhizal fungi compared to that experienced by those without mycorrhizae. The objective of this study was to evaluate the growth of coffee plants colonized by arbuscular mycorrhizal fungi under different soil moisture conditions. Seeds of the coffee cultivar Catuaí Vermelho IAC 99 and three fungal inoculants (Rhizophagus clarus, Claroideoglomus etunicatum and Dentiscutata heterogama) were used in this study. The soil moisture contents tested were 40, 60, 80, and 100% of field capacity. Seedlings in the matchstick stage were inoculated with mycorrhizae, and then later planted in plastic pots when they developed four to five pairs of definitive leaves. Both the extent of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica L.; Rubiaceae; Field capacity; Arbuscular mycorrhiza. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001100747 |
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| Rocha,Beatriz C. F.; Santos,Enésia O. da S.; Santos,José G. D.; Takako,Adriana K.; Castro,Fabio J.. |
| ABSTRACT Arbuscular mycorrhizal fungi and rhizobia are important components of agroecosystems and they respond to human interference. The objective of this study was to investigate native communities of those microorganisms in soil collected under the native forest, four pastures (Brachiaria brizantha, Panicum maximum, Arachis pintoi and Stylosanthes guianensis) and a fallow soil after maize cultivation, in interaction with cowpea (Vigna unguculata). The cowpea grew in a greenhouse until flowering. They were randomly distributed depending on soil, in five replications. The lowest mycorrhizal fungi sporulation and mycorrhizal root colonization occurred under the Panicum and forest soil. In the soils under forest and Stylosanthes, the cowpea did not exhibit... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arbuscular mycorrhiza; Rhizobia; Legal Amazon; Nodulation. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000200116 |
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| Cornejo,Pablo ; Rubio,Rosa ; Borie,Fernando . |
| Arbuscular mycorrhizal fungi (AMF) form symbiosis with plant roots, improving its establishment, nutrition, and tolerance to adverse soil conditions. In annual crop rotations, some aspects such as the type of N fertilizer and tillage system used can affect the AMF propagule density and its functionality in the following crop. To analyze the effect of the agronomic practices previously mentioned on the persistence and density of AMF propagules, a study in a succession of cereals was carried out. For this, soil previously cropped with wheat (Triticum aestivum L.) and fertilized with urea (NH4+) or sodium nitrate (NO3-) was disturbed in each case by simulating conventional tillage (CT) or maintained without disturbing, simulating no-tillage (NT). It was then... |
| Tipo: Journal article |
Palavras-chave: Arbuscular mycorrhiza; Mycorrhizal propagules; Soil disturbing; Soil pH; Wheat-oat succession. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000300016 |
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| Santos, Edson Aparecido dos; Universidade Estadual Paulista; Ferreira, Lino Roberto; Universidade Federal de Viçosa; Costa, Mauricio Dutra; Universidade Federal de Viçosa; Silva, Marliane de Cássia Soares da; Universidade Federal de Viçosa; Reis, Marcelo Rodrigues dos; Universidade Federal de Viçosa; França, André Cabral; Universidade Federal dos Vales do Jequitinhonha e Mucuri. |
| Studies on the ecology of the organisms involved in the production process are necessary for the development of sustainable agriculture, and sustainability is currently closely linked to the profitability of production. The objective of this study was to verify the occurrence of arbuscular mycorrhizal fungi in weeds infesting Brazilian crops and to evaluate the inorganic phosphate solubilization potential of the associated microbiota. A total of 36 weed species were evaluated for the occurrence of mycorrhizae; of these, 11 were selected to evaluate their potential for total and relative phosphate solubilization. All of the species demonstrated mycorrhizal colonization, including a member of the Brassicaceae family, which is usually assumed to be... |
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Palavras-chave: Arbuscular mycorrhiza; Dark septate endophytes; Sinapis arvensis L.; Microbial biomass; Phosphate solubilizers arbuscular mycorrhiza; Dark septate endophytes; Sinapis arvensis L.; Microbial biomass; Phosphate solubilizers. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15047 |
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| Registros recuperados: 21 | |
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