Efeito de fungos micorrízicos arbusculares no crescimento de mudas de Leucaena leucocephala (Lam.) de Wit. em solos de caatinga sob impacto de mineração de cobre

Lins, Cláudia Elizabete de Lima; Maia, Leonor Costa; Cavalcante, Uided Maaze Tiburcio; Sampaio, Everardo Valadares Valadares de Sá Barreto

doi:10.1590/s0100-67622007000200019

Cited by 19 publications

(17 citation statements)

References 24 publications

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“…In copper-contaminated soil (484 mg dm -3 ), the spore production of AMF was negatively influenced by higher contamination levels (75% and 100%). However, a lower contamination level (25%) favored sporulation (20). Trap cultures are being kept in a greenhouse in an attempt to recover as many glomerospores and identify species of AMF in the region (data not shown).…”

Section: Resultsmentioning

confidence: 99%

“…Plantlets of Leucaena leucocephala (Lam.) de Wit cultivated in three soils in the caatinga (which was preserved, without the superficial layer, and contaminated with copper effluent from mining) showed lower growth in the copper contaminated treatment, due to the higher absorption of this metal by the roots (20). In another study using soybean plants, the addition of Pb to the soil reduced the growth of the plants with mycorrhizae, directly influencing the production of dry matter (1).…”

Section: Resultsmentioning

confidence: 99%

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Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil

Gattai¹,

Pereira²,

Costa³

et al. 2011

Braz. J. Microbiol.

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The goals of this study were to evaluate the microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants (Caesalpinia ferrea, Mimosa tenuiflora and Erythrina velutina) in lead contaminated soil from the semi-arid region of northeastern of Brazil (Belo Jardim, Pernambuco). Dilutions were prepared by adding lead contaminated soil (270 mg Kg-1) to uncontaminated soil (37 mg Pb Kg soil-1) in the proportions of 7.5%, 15%, and 30% (v:v). The increase of lead contamination in the soil negatively influenced the amount of carbon in the microbial biomass of the samples from both the dry and rainy seasons and the metabolic quotient only differed between the collection seasons in the 30% contaminated soil. The average value of the acid phosphatase activity in the dry season was 2.3 times higher than observed during the rainy season. There was no significant difference in the number of glomerospores observed between soils and periods studied. The most probable number of infective propagules was reduced for both seasons due to the excess lead in soil. The mycorrhizal colonization rate was reduced for the three plant species assayed. The inoculation with arbuscular mycorrhizal fungi benefited the growth of Erythrina velutina in lead contaminated soil.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil

Gattai¹,

Pereira²,

Costa³

et al. 2011

Braz. J. Microbiol.

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“…Among the plant species with such characteristics, it is possible to mention Leucaena leucocephala (Lam.) de Wit, which has been used in the recovery of degraded areas, as a result of its high capacity to adapt to different soil types and tolerance to climatic variations (Lins et al, 2007). Additionally, Leucaena leucocephala (Lam.)…”

Section: Introductionmentioning

confidence: 99%

Growth of Leucaena leucocephala (Lam.) de Wit favored by organic waste in the Brazilian semiarid region

Amaral

Nóbrega

et al. 2016

Rev. bras. eng. agríc. ambient.

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The aim of this study was to evaluate the effect of sources and rates of organic waste and their interaction on the growth of Leucaena leucocephala (Lam.) de Wit, in the Southeast region of Piauí State. The treatments consisted of two sources (Copernicia prunifera (Mill.) H.E. palm residue and plant compound) and six organic waste rates. The study was conducted in the period of March-June 2011 and the following parameters were evaluated: stem diameter, height, number of leaves, shoot dry weight, root dry weight, total dry matter, root volume, shoot dry weight/root dry weight ratio, height/stem diameter ratio and the Dickson Quality Index. The Copernicia prunifera (Mill.) H.E. palm residue and plant compound showed a great potential to be used in the manufacture of substrates for the production of seedlings Leucaena leucocephala (Lam.) de Wit, since their initial development was influenced by the sources and proportions of these organic residues and by the interaction between these treatments. The substrate containing 50% of plant compound produced better quality of plants of Leucaena leucocephala (Lam.) de Wit in their initial development stage.

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“…Nesse sentido, desconsiderando a possibilidade de redução de entrada de Cd no solo, a associação entre plantas e microrganismos do solo, como fungos micorrízicos arbusculares (FMAs), pode contribuir para a proteção dos efeitos negativos do Cd no seu metabolismo (Nogueira e Soares, 2010 (0, 28.5, 71.50, 142.50, and 285 já foram realizados a fim de se avaliar a influência da contaminação por metais pesados na formação de micorriza e no crescimento de plantas hospedeiras (Siqueira et al, 1999a, b;Nogueira et al, 2004;Silva et al, 2006;Lins et al, 2007;Soares e Siqueira, 2007;Cabral et al, 2010); entretanto, raramente tem sido pesquisada a sua relação com plantas transgênicas, as quais têm entrado na cadeia agrícola produtiva no Brasil e no mundo.…”

Section: Introductionunclassified

Crescimento de Milhos Transgênico (Bt) e Não Transgênico Inoculados com Fungos Micorrízicos Arbusculares em Solo Contaminado por Cádmio

Ducca

Melloni

et al. 2015

Rev. Bras. Ciênc. Solo

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reSumO com o crescimento populacional, aumenta-se a necessidade da produção de alimentos; paralelamente, observa-se o uso indiscriminado de fertilizantes e incorporação de plantas transgênicas no sistema produtivo. O objetivo deste trabalho foi avaliar o efeito do cádmio no crescimento de milho transgênico Bt e não transgênico, inoculados com fungos micorrízicos arbusculares em condições controladas. Para isso, instalou-se um experimento em esquema fatorial 5 × 4 × 2, sendo cinco doses de cd (0; 28,5; 71,50; 142,50; e 285 mg kg -1 cd), inoculação individual de espécies de fungos micorrízicos arbusculares -Fmas (Glomus clarum, Acaulospora scrobiculata e Scutellospora heterogama) e um controle não inoculado; duas cultivares de milho monsanto, DKB-390 (Bt) e DKB-S, e três repetições por tratamento, totalizando 120 unidades experimentais compostas de recipientes plásticos de 500 ml cada. O experimento foi conduzido por 45 dias, avaliando-se, em seguida, atributos relacionados ao crescimento vegetativo e de colonização micorrízica. As doses de Cd não influenciaram o crescimento de milho transgênico Bt e não transgênico, independentemente da inoculação de Fmas. O milho transgênico Bt não respondeu à inoculação, com colonização micorrízica entre 14 e 33 %, quando comparada a do milho não transgênico, entre 32 e 74 %.Palavras-chave: metais pesados, micorriza arbuscular, planta geneticamente modificada. aBStract: Growth of Bt transGenic and non-transGenic corn inoculatedwith Mycorrhizal funGi in soil contaMinated By cadMiuM

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Efeito de fungos micorrízicos arbusculares no crescimento de mudas de Leucaena leucocephala (Lam.) de Wit. em solos de caatinga sob impacto de mineração de cobre

Cited by 19 publications

References 24 publications

Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil

Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil

Growth of Leucaena leucocephala (Lam.) de Wit favored by organic waste in the Brazilian semiarid region

Crescimento de Milhos Transgênico (Bt) e Não Transgênico Inoculados com Fungos Micorrízicos Arbusculares em Solo Contaminado por Cádmio

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