Uptake and Assimilation of Nitrate and Iron in Cultivated and Wild<i>Vaccinium</i>Species

Darnell, Rebecca L.; Cruz-Huerta, Nicacio

doi:10.1080/15538362.2011.578518

Cited by 11 publications

(28 citation statements)

References 27 publications

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“…Iron concentration in the nutrient solution samples was determined via inductively coupled plasma-atomic emission spectrometry (U.S. Environmental Protection Agency, 1994). Nitrate concentration in the nutrient solution was determined as per Darnell and Cruz-Huerta (2011). Briefly, 10 mL of the nutrient solution were diluted in 1.5 mL of ultrapure water and acidified with 15 mL 12 N HCl.…”

Section: Methodsmentioning

confidence: 99%

“…Dilutions were filtered and iron content was measured using inductively coupled plasma atomic emission spectrometry (U.S. Environmental Protection Agency, 2007). Active iron content of the dried tissue was determined as per Darnell and Cruz-Huerta (2011). Active iron is the fraction of total iron extracted via digestion in dilute HCl and is considered a better indicator of the plant's iron status than total iron.…”

Section: Methodsmentioning

confidence: 99%

“…Although iron reduction and uptake by Vaccinum sp. have been investigated previously (Darnell and Cruz-Huerta, 2011;Poonnachit and Darnell, 2004), to our knowledge rhizosphere acidification in Vaccinium has not been quantified. Southern highbush blueberry, like all cultivated blueberry, is adapted to acidic soils (Coville, 1910;Finn et al, 1993) and experiences iron deficiency when grown in higher pH soils (Gough, 1997).…”

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confidence: 99%

“…Southern highbush blueberry, like all cultivated blueberry, is adapted to acidic soils (Coville, 1910;Finn et al, 1993) and experiences iron deficiency when grown in higher pH soils (Gough, 1997). On the other hand, VA is a wild species that exhibits greater tolerance to high pH soils (Lyrene, 1997) and greater efficiency at iron assimilation than SHB (Darnell and Cruz-Huerta, 2011).…”

mentioning

confidence: 99%

“…Additionally, VA and SHB also differ in their ability to take up nitrate from the soil. Several studies indicate that VA exhibits greater nitrate assimilation than SHB (Darnell and Cruz-Huerta, 2011;Darnell and Hiss, 2006;Poonnachit and Darnell, 2004). Since nitrate anions are transported across the PM in symport with H + (Pii et al, 2014;Santi et al, 2003), nitrate uptake in Vaccinium sp.…”

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confidence: 99%

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Rhizosphere Acidification is Not Part of the Strategy I Iron Deficiency Response of Vaccinium arboreum and the Southern Highbush Blueberry

Nunez

Olmstead

Darnell

2015

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Vaccinium arboreum (VA) is a wild blueberry species that exhibits wider soil pH tolerance and greater ability for iron and nitrate uptake than cultivated Vaccinium species, including southern highbush blueberry (SHB, V. corymbosum interspecific hybrids). The ability of VA and SHB to respond to iron deficiency by rhizosphere acidification was investigated. Rooted cuttings of the VA genotype FL09-502 and SHB ‘Emerald’ were transplanted to a hydroponic system filled with complete nutrient solution. After 14 days of acclimation at 45 µm iron, plants were transferred to unbuffered nutrient solutions containing 90 or 10 µm iron. ‘Emerald’ and FL09-502 plants grown in 10 µm iron exhibited less iron uptake and lower chlorophyll, total iron, and active iron contents than plants grown in 90 µm iron. Generally, there were no species-level differences in iron or nitrate uptake. Neither FL09-502 nor ‘Emerald’ acidified the rhizosphere in either the nutrient solution or in a gel-based assay, regardless of external iron concentration. A screen of 18 additional genotypes of VA and SHB confirmed that this response is absent in these taxa. Thus, rhizosphere acidification is not part of the iron deficiency response of SHB and VA. In addition, the ability to acidify the soil is not likely to be responsible for the wider soil pH tolerance of VA.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Rhizosphere Acidification is Not Part of the Strategy I Iron Deficiency Response of Vaccinium arboreum and the Southern Highbush Blueberry

Nunez

Olmstead

Darnell

2015

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Vegetative and Physiological Responses of “Emerald” Blueberry to Ammoniacal Sources with a Nitrification Inhibitor

Osorio

Cáceres

Covarrubias

2019

J Soil Sci Plant Nutr

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The nitrogen nutrition in blueberry has been studied by some authors; however, the effect of N-nitrate or N-ammoniacal fertilizers with nitrification inhibitors on plant growth and physiology has not been known. The aim of this investigation was to study the effectiveness and physiological implications of ammoniacal fertilizers, with or without nitrification inhibitors in blueberry. An experiment was conducted on 1-year "Emerald" blueberries grown in 20-L plastic pots. Our data indicate that ammoniumcontaining fertilizers promote vegetative growth and increase the leaf nitrogen concentration and gas exchange in plants, possibly due to higher nitrogen root absorption compared with nitrate. On the other hand, fertilization with ammonium with a nitrification inhibitor increases the leaf chlorophyll concentration compared with the addition of ammonium without a nitrification inhibitor and nitrate. However, the ammonium supply decreases the concentration of calcium and potassium in leaves. Our data suggest, for the first time, that fertilization with ammonium accompanied by a nitrification inhibitor is an effective strategy to improve the nitrogen status and promote plant development in "Emerald" blueberry.

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Growth and physiological characteristics of four blueberry cultivars under different high soil pH treatments

Yang

Zhang

et al. 2022

Environmental and Experimental Botany

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Uptake and Assimilation of Nitrate and Iron in Cultivated and WildVacciniumSpecies

Cited by 11 publications

References 27 publications

Rhizosphere Acidification is Not Part of the Strategy I Iron Deficiency Response of Vaccinium arboreum and the Southern Highbush Blueberry

Rhizosphere Acidification is Not Part of the Strategy I Iron Deficiency Response of Vaccinium arboreum and the Southern Highbush Blueberry

Vegetative and Physiological Responses of “Emerald” Blueberry to Ammoniacal Sources with a Nitrification Inhibitor

Growth and physiological characteristics of four blueberry cultivars under different high soil pH treatments

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