Nitrogen-fixing and vesicular–arbuscular mycorrhizal symbioses in some tropical legume trees of tribe Mimoseae

Patreze, Camila Maistro; Cordeiro, Laísa Vilar

doi:10.1016/j.foreco.2004.03.034

Cited by 37 publications

(20 citation statements)

References 26 publications

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“…Outro fator a ser considerado quando se discutem a atividade e a eficiência dos rizóbios são o tamanho e morfologia dos nódulos (SANCHEZ-DIAZ et al, 1990;PATREZE;. Os nódulos encontrados neste estudo eram pequenos e apresentavam baixa massa de matéria seca, provavelmente porque a interação entre planta e microrganismo estava no início, tendo pouco aporte de N sendo fixado, além de a bactéria competir com a planta por nutrientes e carboidrato.…”

Section: Discussionunclassified

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Micorriza arbuscular e rizóbios no enraizamento e nutrição de mudas de angico-vermelho

Dias¹,

Pereira²,

MegumiKasuya

et al. 2012

Rev. Árvore

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RESUMO -O objetivo deste estudo foi avaliar o efeito da inoculação dos fungos micorrízicos arbusculares (FMAs) e rizóbio no enraizamento, crescimento e nutrição de mudas de angico-vermelho (Anadenanthera macrocarpa (Benth) Brenan) propagadas via miniestaquia. Foram utilizadas seis progênies, das quais foram confeccionadas miniestacas com um par de folhas inteiras, bem como tubetes de 55 cm³ contendo substrato comercial Bioplant ® . Foram testados quatro tratamentos: 8 kg m -3 de superfosfato simples (SS) misturados ao substrato; 4 kg m -3 de SS misturados ao substrato; 4 kg m -3 de SS misturados ao substrato e adição de suspensão contendo rizóbios; e 4 kg m -3 de SS e adição de suspensão contendo rizóbios e 5 g de solo contendo esporos de FMAs. Não houve interação entre os tratamentos para percentagem de sobrevivência das miniestacas e percentagem de miniestacas com raízes observadas na extremidade inferior do tubete, na saída da casa de vegetação (30 dias) e da casa de sombra (40 dias), provavelmente em função do sistema radicular ainda estar em formação. Houve diferenças entre as progênies para percentagem de sobrevivência das miniestacas, percentagem de miniestacas com raízes observadas na extremidade inferior do tubete, altura, diâmetro de colo e massa seca da parte aérea. As avaliações das características de crescimento das miniestacas enraizadas, principalmente com relação à sobrevivência a pleno sol (140 dias), evidenciam a eficiência dos rizóbios e FMAs na produção de mudas desta espécie. Conclui-se que a associação simbiótica com rizóbio e/ou FMA favorece a produção de mudas de A. macrocarpa via miniestaquia.Palavras-chave: Anadenanthera macrocarpa (Benth) Brenan, Propagação vegetativa, Miniestaquia, Propagação de plantas, FMA, FBN. ARBUSCULAR MYCORRHIZAE AND RHIZOBIUM IN ROOTING AND NUTRITION OF ANGICO-VERMELHO SEEDLINGS

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Section: Discussionunclassified

“…Patreze et al (2004) obtiveram colonização em A. colubrina relativamente baixa (0 -14%) quando comparada com os resultados deste trabalho. Entretanto, Carneiro et al (1998) Durante a fase de desenvolvimento da raiz e crescimento da parte aérea, a planta necessita de maior aporte de nutrientes (CUNHA et al, 2009).…”

Section: Discussionunclassified

Micorriza arbuscular e rizóbios no enraizamento e nutrição de mudas de angico-vermelho

Dias¹,

Pereira²,

MegumiKasuya

et al. 2012

Rev. Árvore

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“…This study showed that "Rhizobium" strain Br3454 had an unusual ability to infect the roots of M. scabrella by direct epidermal infection, and so far M. scabrella is the only legume reported to be infected in this manner. The hosts of the other three strains, M. caesalpiniaefolia (Br3407), M. bimucronata (Br3461), and M. camporum (Br3469), are all common in forested areas of Brazil (2, 13, 32) and have long been known to be nodulated (1,5,7,20,29,34). Mimosa caesalpiniaefolia, a fast-growing tree, has been well studied owing to its ability to grow and nodulate in acidic soils (35) and for its potential for use in the reclamation of degraded areas (15,17), while the smaller, invasive shrubs M. bimucronata and M. camporum are being evaluated for their potential to assist in the recovery of drastically disturbed lands (29) and to withstand prolonged shading (20), respectively.…”

Section: Vol 71 2005mentioning

confidence: 99%

Proof that Burkholderia Strains Form Effective Symbioses with Legumes: a Study of Novel Mimosa -Nodulating Strains from South America

Chen

Faria

Straliotto

et al. 2005

Appl Environ Microbiol

164

175

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Twenty Mimosa-nodulating bacterial strains from Brazil and Venezuela, together with eight reference Mimosa-nodulating rhizobial strains and two other ␤-rhizobial strains, were examined by amplified rRNA gene restriction analysis. They fell into 16 patterns and formed a single cluster together with the known ␤-rhizobia, Burkholderia caribensis, Burkholderia phymatum, and Burkholderia tuberum. The 16S rRNA gene sequences of 15 of the 20 strains were determined, and all were shown to belong to the genus Burkholderia; four distinct clusters could be discerned, with strains isolated from the same host species usually clustering very closely. Five of the strains (MAP3-5, Br3407, Br3454, Br3461, and Br3469) were selected for further studies of the symbiosisrelated genes nodA, the NodD-dependent regulatory consensus sequences (nod box), and nifH. The nodA and nifH sequences were very close to each other and to those of B. phymatum STM815, B. caribensis TJ182, and Cupriavidus taiwanensis LMG19424 but were relatively distant from those of B. tuberum STM678. In addition to nodulating their original hosts, all five strains could also nodulate other Mimosa spp., and all produced nodules on Mimosa pudica that had nitrogenase (acetylene reduction) activities and structures typical of effective N 2 -fixing symbioses. Finally, both wild-type and green fluorescent protein-expressing transconjugant strains of Br3461 and MAP3-5 produced N 2 -fixing nodules on their original hosts, Mimosa bimucronata (Br3461) and Mimosa pigra (MAP3-5), and hence this confirms strongly that Burkholderia strains can form effective symbioses with legumes.Although it was generally accepted for many years that legumes (and the nonleguminous plant Parasponia) were nodulated exclusively by members of the Rhizobiaceae in the ␣-Proteobacteria (including the genera Allorhizobium, Azorhizobium, Bradyrhizobium, Mesorhizobium, Rhizobium, and Sinorhizobium) (30, 34), recently there has been an increasing number of reports of members of the ␤-Proteobacteria being isolated from nodules. So far, these include Burkholderia tuberum strain STM678 and Burkholderia phymatum strain STM815 (originally isolated from Aspalathus carnosa in South Africa and Machaerium lunatum in French Guiana, respectively [26,39]), Ralstonia taiwanensis strains (isolated from Mimosa pudica in Taiwan and India and Mimosa diplotricha in Taiwan [8,41] and now renamed Cupriavidus taiwanensis [38]), and several Burkholderia strains isolated from Mimosa casta, Mimosa pigra (synonym, Mimosa pellita), M. pudica, and another mimosoid legume, Abarema macradenia, in Panama (3). Although symbiotic genes (nifH and nodA) have been identified in the Burkholderia strains STM678 and STM815, so far there is very little physiological and structural evidence of their symbiotic nature, and they have been shown to form only ineffective nodules on the promiscuous legume Macroptilium atropurpureum (26). More convincingly, not only have some of the Panamanian Burkholderia strains been shown to possess symbiosis-relat...

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“…In the case of A. colubrina, however, the observed synthesis of cyanogenic glycosides may well be related to the fact that this group of plants harbors bacterial and fungal symbionts. These organisms fi x atmospheric nitrogen that can subsequently be used for defensive purposes (Mendonça;Schiavinato, 1996;Gross et al, 2002;Patreze;Cordeiro, 2004).…”

Section: Tannins and Seasonalitymentioning

confidence: 99%

The effects of seasonal climate changes in the caatinga on tannin levels in Myracrodruon urundeuva (Engl.) Fr. All. and Anadenanthera colubrina (Vell.) Brenan

Monteiro¹,

Albuquerque²,

Neto³

et al. 2006

Rev. bras. farmacogn.

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Unitermos: Florestas secas, Folin-Ciocalteau, plantas medicinais, semi-árido. ABSTRACT:The infl uence of seasonal climatic changes on tannin concentrations was examined in two caatinga (semi-arid) plant species (Myracrodruon urundeuva (Engl.) Fr. All. and Anadenanthera colubrina (Vell.) Brenan). The Folin-Ciocalteau method was used to quantify total phenols, and the casein precipitation method was used for tannins. In general, there is a close relationship between tannin levels and rainfall, although species seem to adopt different strategies of tannin compound production in response to periods of drought and rainfall in the caatinga.Keywords: Dry forest, Folin-Ciocalteau, medicinal plant, semi-arid. INTRODUCTIONIt is well documented that some ecological variables can quantitatively and qualitatively affect tannin production in plants (Hatano et al., 1986;Teixeira et al., 1990;Furlan et al., 1999;Simon et al., 1999;Salminen et al., 2001;Paiva et al., 2002). Seasonal changes, for example, alter plant metabolism and, consequently, biosynthetic pathways (Hatano et al., 1986;Salminen et al., 2001). Periods of high temperatures are known to increase the concentration of phenolic compounds in many plants. Species of Lotus, for example, demonstrate seasonal variations in tannin concentration (Gebrehiwot et al., 2002), which have been shown to be signifi cantly higher during the spring and summer. The same response was seen with Alnus rubra Bong (González-Hernández et al., 2000). Comparisons between plants growing in tropical sub-humid and tropical semi-arid regions of Africa have demonstrated that total phenols levels increase in regions with more severe climates and with less available humidity (Makkar; Becker, 1998).In Brazil, only a limited number of studies have examined the infl uence of environmental variables on tannin production, and most of these have focused on plant defenses in areas of cerrado (savannah) and Atlantic Coastal Forest vegetation (Pais;Varanda, 2003;Pansera et al., 2003;Yariwake et al., 2005). Fewer studies have been undertaken in the caatinga yet and it certainly remains the most incompletely studied Brazilian biome. The caatinga is also the least protected region in Brazil, with less than 2 % of its lands included within any type of conservation area. Research programs in this semiarid region are therefore necessary, especially in light of the rapid alteration of this biome, and substitution of the native vegetation even before it can be effectively studied (Fernandes, 2002; Giullieti et al., 2002;Castelletti et al., 2003).In the present work, the tannin levels of two caatinga medicinal plants, Myracrodruon urundeuva (Engl.) Fr. All. and Anadenanthera colubrina (Vell.) Brenan, were quantifi ed and compared with local seasonal rainfall data. Studies which increase our understanding of the behavior of caatinga plants are extremely important at this moment for conservation and sustainable. Management strategies are needed to protect and preserve many semi-arid species threatened with extinction...

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Nitrogen-fixing and vesicular–arbuscular mycorrhizal symbioses in some tropical legume trees of tribe Mimoseae

Cited by 37 publications

References 26 publications

Micorriza arbuscular e rizóbios no enraizamento e nutrição de mudas de angico-vermelho

Micorriza arbuscular e rizóbios no enraizamento e nutrição de mudas de angico-vermelho

Proof that Burkholderia Strains Form Effective Symbioses with Legumes: a Study of Novel Mimosa -Nodulating Strains from South America

The effects of seasonal climate changes in the caatinga on tannin levels in Myracrodruon urundeuva (Engl.) Fr. All. and Anadenanthera colubrina (Vell.) Brenan

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