Tolerance of Sesbania virgata plants to flooding

Zanandrea, Ilisandra; Alves, Joyce de Almeida; Deuner, Sidnei; Goulart, Patrícia de Fátima Pereira; Henrique, Paôla de Castro; Silveira, Neidiquele M.

doi:10.1071/bt09144

Cited by 55 publications

(30 citation statements)

References 28 publications

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“…The extraction of carbohydrates was performed according to Zanandrea et al (2010). Starch and total soluble sugars were quantified as described by Dische (1962).…”

Section: Carbohydratesmentioning

confidence: 99%

Copper (Cu) stress affects carbon and antioxidant metabolism in Coffea arabica seedlings

Santos¹,

Fária²,

Silva³

et al. 2017

Aust J Crop Sci

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Although copper is a micronutrient essential for the normal development of plants, both insufficient and supra optimal doses can disrupt the functioning of metabolism and the production of biomass. To study the biochemical and physiological impacts of deficiency and excess of copper in coffee, we treated 6-month-old seedlings of Coffea arabica L. Catuaí cultivar to three copper treatments: control (0.03 ppm), excess (0.12 ppm) and deficiency (0 ppm) for 60 days. The changes in levels of photosynthetic pigments, biomass allocation, carbohydrate partitioning, antioxidant system and proline levels were evaluated. Under deficiency and excess of copper coffee seedlings showed lower levels of chlorophyll, reduction on dry weight of shoot, lower sugar levels and higher content of hydrogen peroxide. We also observed increased levels of proline and enzymatic activity of the antioxidant system, providing conditions for the reduction of oxidative stress triggered by nutritional imbalance. In general, the results showed that coffee plants invest in antioxidant defense system as an alternative to maintain redox balance when exposed to deficiency or excess copper. However, it is not effective to prevent an increase in lipid peroxidation. Authors may indicate an optimum range for application of copper in coffee.

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“…The extraction of carbohydrates was performed according to Zanandrea et al (2010). Starch and total soluble sugars were quantified as described by Dische (1962).…”

Section: Carbohydratesmentioning

confidence: 99%

Copper (Cu) stress affects carbon and antioxidant metabolism in Coffea arabica seedlings

Santos¹,

Fária²,

Silva³

et al. 2017

Aust J Crop Sci

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“…Sesbania virgata is also tolerant to long periods of soil inundation, being able to survive under flooded soil during 56 days without damage (Zanandrea et al 2010). It has been described as an invasive species in flooded and damp soil, especially in irrigated rice fields (Kissmann and Groth 1999).…”

Section: Introductionmentioning

confidence: 99%

“…It produces many seeds with long-term viability that are dispersed within indehiscent legume fruits that float in the water (Pott and Pott 1994;Simões et al 2008). This shrub is a promising species for the restoration of degraded areas and to revegetate Gallery forests due its hardiness, tolerance of low fertility soils, and capacity to compete with herbaceous plants (Coutinho et al 2005;Zanandrea et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Phytotoxic effect of Sesbania virgata (Cav.) Pers. on seeds of agronomic and forestry species

Id¹,

Costa²,

Mignoni³

et al. 2015

J. For. Res.

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Sesbania virgata (Cav.) Pers. is a pioneer species native to South America able to release allelochemicals that affect germination and development of other plant species. The aim of this work was to evaluate the allelopathic effect of S. virgata on the germination and development of co-occurring species from gallery forest and on agronomic species. Two forest native species, Enterolobium contortisiliquum (Vell.) Morong and Sapindus saponaria L., and two agronomic species (these as control), Oryza sativa L. and Solanum lycopersicum L. were used in the lab and greenhouse assays with seeds and leaf extracts of S. virgata. Agronomic species were more affected than native species when co-germinated with seeds of S. virgata. The germination percentage and speed germination index of the agronomic species were reduced in both in vitro and greenhouse assays. In the same assays, the seeds of native species showed no significant differences in the parameters mentioned. However, the initial growth of the four species assayed was affected, with reduction in plant length and shoot diameter followed by significant reduction in plantlet shoot and root weights. In the assays with irrigation of S. virgata leaf extracts, no significant inhibitory effects on germination were observed for all species. Height and shoot diameter of the native species were not affected by the leaf extracts, nor were fresh and dry weights. However, these parameters increased in the agronomic species as they were irrigated with leaf extracts. Based on our data we conclude that seed leachates of S. virgata affect germination and seedling development of other species, suggesting that its invasive behavior is due mainly to seed allelochemicals. Although with less pronounced effects on native species, allelopathy of S. virgata might also influence Interspecific competition in its natural environment.

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“…To extract the starch, the pellet resulting from the extraction of total soluble sugars was resuspended with 8mL of potassium acetate buffer 200mM pH 4.8 and 2mL of amyloglucosidase enzyme solution (1mg mL -1 ) were added and incubated at 40ºC for two hours and then later centrifuged at 10.000rpm for 20min; the resulting supernatant was collected and discarded and the pellet volume was completed to reach 15mL with distilled water. Starch and total soluble sugars were quantified using the anthrone method (ZANANDREA et al, 2009).…”

Section: Methodsmentioning

confidence: 99%