Germination Responses and Boron Accumulation in Germplasm from Chile and the United States Grown with Boron-Enriched Water

Bañuelos, Gary S.; Ajwa, Husein A.; Cáceres, Luis; Dyer, David F.

doi:10.1006/eesa.1999.1765

Cited by 35 publications

(23 citation statements)

References 23 publications

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“…This element is usually toxic for most plants when it is present at high concentrations in soils (> 1 mg L −1 ). Nevertheless, tolerance has been observed in horticultural crops, including tomato, carrot and corn (Bañuelos et al, 1999), as well as in wheat, barley and alfalfa (Nable et al, 1990), when irrigated with water containing a B concentration higher than 5 mg L −1 . Nable (1988) reported that the lower net accumulation of boron in tolerant genotypes most likely results from a lower rate of passive boron uptake, in a manner similar to that, which occurs in salt tolerant genotypes.…”

Section: Introductionmentioning

confidence: 98%

“…There are only a few studies carried out with germplasm native from areas enriched in saline and B, where significant differences in B and Na + accumulation have been found for example between Chilean and Californian maize germplasm. Thus, Californian species exhibited more severe B toxicity symptoms because they accumulated higher levels of this element (Ferreyra et al, 1997;Bañuelos et al, 1999). Therefore, the objective of this study was to investigate the growth response, by means of evaluating water relations and photosynthetic capacity of the highly boron and salt tolerant cultivar Zea mays L. amylacea, focusing particularly on the accumulation of B and Na + in tissue.…”

Section: Introductionmentioning

confidence: 99%

“…In this valley, alluvial deposits are the source of high levels of B, and other salts in soils originate from Cretaceous shales. Their eventual migration into groundwater or rivers contributes significantly to the deposition of soluble B in agricultural soils (Bañuelos et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

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Zea mays L. amylacea from the Lluta Valley (Arica-Chile) tolerates salinity stress when high levels of boron are available

2004

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Elevated levels of boron occurring naturally in soil or irrigation waters are detrimental to many crops grown in agricultural regions of the world. If such levels of boron are accompanied by conditions of excessive salinity, as occurs in the Lluta valley in Northern Chile, the consequences can be drastic for crops. A variety of sweet corn from this valley (Zea mays L. amylacea) has arisen as a consequence of practiced seed selection, suggesting that it is extremely tolerant to high salt and boron levels. In the present study, seeds of Zea mays L. amylacea were collected in order to study their physiological mechanisms of tolerance to high levels of NaCl and boron. Concentrations of 100 and 430 mM NaCl and 20 and 40 mg kg −1 boron were imposed as treatments. The plants did not exhibit symptoms of toxicity to either NaCl and boron during the 20 days of treatment. Na + accumulation was substantial in roots, while boron was translocated to leaves. Boron alleviated the negative effect of salinity on tissue K + and maintained membrane integrity. The higher values of water potential seem to be related to the capacity of this ecotype to maintain a better relative water content in leaves. Despite the fact that boron enhanced slightly the effect of salinity on CO 2 assimilation, no effect on photochemical parameters was observed in this ecotype. Osmotic adjustment allows this ecotype to survive in high saline soils; however the presence of boron makes this strategy unnecessary since boron contributed to the maintenance of cell wall elasticity.Abbreviations: A -net CO 2 assimilation rate; Ci -intercellular CO 2 concentration; EC (%) -percentage of electrolyte leakage; ε -modulus of elasticity at full hydration; F v /F m -maximum quantum yield of PSII; pturgor potential; s -osmotic potential; 100 s -osmotic potential at full turgor; 100 s − 100c s -degree of osmotic adjustment; w -leaf water potential; g s -stomatal conductance; qP, qN -coefficients of photochemical and non-photochemical quenching, respectively; PSII -quantum fluorescence yield; RWC -relative water content.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Zea mays L. amylacea from the Lluta Valley (Arica-Chile) tolerates salinity stress when high levels of boron are available

2004

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“…This is according to Bañuelos et al (1999), who suggested that northern Chilean germplasms are better adapted to high B levels.…”

Section: Resultsmentioning

confidence: 90%

Análisis de expresión de tres genes relacionados a estrés en respuesta a un exceso de boro en Solanum lycopersicum cv Poncho Negro

Mamani

Ninasivincha

García

et al. 2018

Idesia

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“…Si bien son escasos los trabajos publicados de tolerancia al boro, resultados similares fueron obtenidos por Bañuelos et al (1999), que emplearon dos germoplasmas de tomate, maíz y alfalfa, obteniendo porcentajes de germinación superiores al 60% en 20 y 40 ppm de boro, y por Albarracín Franco, de Viana y Flores (2007) con Aspidosperma quebracho blanco y Lolium multiflorum con una supervivencia superior al 70% en 50 ppm de boro de suelo extraído de la planta Baradero (Provincia de Salta) y diluido con arena hasta llegar a la concentración mencionada.…”

Section: Discussionunclassified

Tolerancia experimental de las especies vegetales Nicotiana glauca, Jacaranda mimosifolia, Tecoma stans, Medicago sativa y Spinacea oleracea al boro, en Argentina

Viana¹,

Franco²

2007

RBT

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Experimental tolerance to boron of the plant species Nicotiana glauca, Jacaranda mimosifolia, Tecoma stans, Medicago sativa y Spinacea oleracea in Argentina. The activity of boron industries is a punctual and diffuse source of air, soil and water pollution. Therefore, it is a priority to study possible ways of reducing this impact. A relatively new technology for reducing soil pollution is phytoremediation, which uses plants and associate microorganisms. The first step in phytoremediation is to detect tolerant plant species, which is the objective of this work. A laboratory experiment to assess the germination, survival and growth of different species at different boron concentrations was carried out following a factorial design with two factors: plant species and boron concentration. Boron concentrations were determined at the beginning and the end of the experiment, taking into account substrates with and without vegetation. We found significant differences for treatment, species and the interaction species*treatment. N. glauca, M. sativa and J. mimosifolia were the most tolerant species. The other species had a decrease in the response variables, with the concentration of the pollutant. All the species had a low survival at the highest boron concentration. The reduction in boron concentration at the end of the experiment was higher in the 30 ppm treatment with M. sativa and the lower was registered in the 20 ppm treatment with J. mimosifolia and in 30 ppm with T. stans and S. oleraceae. We conclude that N. glauca, M. sativa and J. mimosifolia can be considered in remediation plans. Rev. Biol. Trop. 56 (3):

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Germination Responses and Boron Accumulation in Germplasm from Chile and the United States Grown with Boron-Enriched Water

Cited by 35 publications

References 23 publications

Zea mays L. amylacea from the Lluta Valley (Arica-Chile) tolerates salinity stress when high levels of boron are available

Zea mays L. amylacea from the Lluta Valley (Arica-Chile) tolerates salinity stress when high levels of boron are available

Análisis de expresión de tres genes relacionados a estrés en respuesta a un exceso de boro en Solanum lycopersicum cv Poncho Negro

Tolerancia experimental de las especies vegetales Nicotiana glauca, Jacaranda mimosifolia, Tecoma stans, Medicago sativa y Spinacea oleracea al boro, en Argentina

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