Growth and nitrogen fixation in Lotus japonicus and Medicago truncatula under NaCl stress: Nodule carbon metabolism

López, María Carmen López; Herrera-Cervera, José A.; Iribarne, Carmen; Tejera, Noel A.; Lluch, Carmen

doi:10.1016/j.jplph.2007.05.009

Cited by 92 publications

(61 citation statements)

References 60 publications

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“…Corroborando com os resultados de (LOPEZ et al, 2008). Tejera et al (2004) verificaram, ainda, a redução da fixação biológica de nitrogênio e da atividade enzimática dos nódulos.…”

Section: Methodsunclassified

“…Apesar de alguns estudos apontarem que tanto a produção de nódulos radiculares em leguminosas, quanto à colonização micorrízica foram afetadas negativamente pela salinidade do solo, esses simbiontes promovem condições mais adequadas ao desenvolvimento das plantas (LOPEZ et al, 2008;QIANG-SHENG et al, 2008). Em alguns estudos, verificou-se ainda que a dupla inoculação das plantas com FMAs e BFN foram mais eficientes na produção de nódulos radiculares e acúmulo de nitrogênio (GARG;MANCHANDA, 2008).…”

Section: Introductionunclassified

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Colonização micorrízica e nodulação radicular em mudas de sabiá (Mimosa caesalpiniaefolia Benth.) sob diferentes níveis de salinidade

Tavares¹,

Filho²,

Lacerda³

et al. 2012

Rev. Ciênc. Agron.

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), com 3 repetições. Os resultados obtidos indicam que: a salinidade reduziu a colonização micorrízica e a nodulação radicular das mudas de sabiá; a intensificação das condições de estresse salino aumentaram a dependência micorrízica das mudas de sabiá; a colonização das mudas de sabiá com os FMAs proporcionou aumentos na matéria seca dos nódulos radiculares da ordem de 1900%; as micorrizas arbusculares reduziram o pH após o cultivo do solo; e a adição de vermicomposto não promoveu efeito sobre a colonização micorrízica das mudas de sabiá, entretanto, aumentou a produção de matéria seca dos nódulos radiculares. Palavras-chave: Sabiá (árvore). Salinidade. Microssimbiontes.ABSTRACT -The sabiá (Mimosa caesalpiniaefolia Benth.) is a plant species native to the Brazilian northeast and brings together some fundamental features for use in rehabilitation programs of salinized areas, especially if associated with arbuscular mycorrhizal fungi (AMF) and nitrogen-fixing bacteria (BFN). The aim of this study was to evaluate the mycorrhizal colonization and root nodulation of sabiá seedlings fertilized with organic compost and irrigated with water at different electrical conductivities. The experiment was carried out in a greenhouse, in a completely randomized design with a factorial scheme of 2 (presence and absence of arbuscular mycorrhizal fungi) x 2 (presence and absence of an organic compound) x 5 levels of electrical conductivity of the irrigation water (0.7, 1.2, 2.2, 3.2 and 4.2 dS m -1 ), and three repetitions. The results obtained indicate that: salinity reduced mycorrhizal colonization and root nodulation of the sabiá seedlings; intensifying salt-stress conditions increased the mycorrhizal dependence of the sabiá seedlings; the colonization of seedlings with AMF caused increases in the root-nodule dry matter of about 1900%; the arbuscular mycorrhiza reduced the pH after soil cultivation; and the addition of vermicompost had no effect on the mycorrhizal colonization of the sabiá seedlings, but did increase the production of root-nodule dry matter.

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“…Corroborando com os resultados de (LOPEZ et al, 2008). Tejera et al (2004) verificaram, ainda, a redução da fixação biológica de nitrogênio e da atividade enzimática dos nódulos.…”

Section: Methodsunclassified

Section: Introductionunclassified

Colonização micorrízica e nodulação radicular em mudas de sabiá (Mimosa caesalpiniaefolia Benth.) sob diferentes níveis de salinidade

Tavares¹,

Filho²,

Lacerda³

et al. 2012

Rev. Ciênc. Agron.

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“…Plants exposed to high salt levels must cope with the dual challenges of ion toxicity and osmotic stress. Several species have been observed to accumulate trehalose in response to salt stress, including wheat (El-Bashiti et al, 2005), rice (Shima et al, 2007), and Medicago truncatula (López et al, 2008). However, overall levels of trehalose in the salt-stressed plants were still relatively low, suggesting that trehalose made little direct contribution to osmoregulation, unless its distribution within the plants was concentrated in localized tissues or subcellular compartments.…”

Section: Tre6p and Abiotic Stress Tolerancementioning

confidence: 99%

A Tale of Two Sugars: Trehalose 6-Phosphate and Sucrose

2016

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“…As stated before, BNF is a highly energetic process which requires a constant energy supply. Modification of nodule sucrose content has been observed during drought stress (Galvez et al, 2005;Gordon et al, 1997), salt stress Lopez et al, 2008;Sanchez et al, 2011;Lopez et al, 2009;Ben Salah et al, 2009), dark stress (Gogorcena et al, 1997;Matamoros et al, 1999;Vauclare et al, 2010) and cold stress (Walsh & Layzell, 1986;van Heerden et al, 2008). However, whereas dark stress induces a diminution of sucrose concentration, www.intechopen.com drought stress, salt stress and cold stress lead in general to its accumulation in nodules.…”

Section: Stress Induced Senescence Is Characterized By Modifications mentioning

confidence: 99%

The Legume Root Nodule: From Symbiotic Nitrogen Fixation to Senescence

Dupont¹,

Alloing²,

Pierre³

et al. 2012

Senescence

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Growth and nitrogen fixation in Lotus japonicus and Medicago truncatula under NaCl stress: Nodule carbon metabolism

Cited by 92 publications

References 60 publications

Colonização micorrízica e nodulação radicular em mudas de sabiá (Mimosa caesalpiniaefolia Benth.) sob diferentes níveis de salinidade

Colonização micorrízica e nodulação radicular em mudas de sabiá (Mimosa caesalpiniaefolia Benth.) sob diferentes níveis de salinidade

A Tale of Two Sugars: Trehalose 6-Phosphate and Sucrose

The Legume Root Nodule: From Symbiotic Nitrogen Fixation to Senescence

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