Uptake and Assimilation of Nitrate and Iron in Two Vaccinium Species as Affected by External Nitrate Concentration

Darnell, Rebecca L.; Hiss, Steven A.

doi:10.21273/jashs.131.1.5

Cited by 24 publications

(21 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This could be caused by FL09-502 reducing its leaf nitrate pools to compensate for the limited uptake of nitrate in this experiment. However, nitrate reductase activity in Vaccinium leaves is low or entirely absent (Claussen and Lenz, 1999;Darnell and Hiss, 2006). Alternatively, the low nitrate concentration in the leaves of FL09-502 could be the product of the translocation of already reduced nitrogen from roots to leaves.…”

Section: Discussionmentioning

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.…”

mentioning

confidence: 99%

See 1 more Smart Citation

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

Nunez

Olmstead

Darnell

2015

horts

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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

Nunez

Olmstead

Darnell

2015

horts

Self Cite

View full text Add to dashboard Cite

show abstract

“…pretreatment apparently increased translocation of from roots to the shoot in both mycorrhizal and nonmycorrhizal plants. Nitrate reductase is present in cranberry roots, although not in leaves (Smith, 1 993), similar to other Vaccinium species (Smirnoff et al ., 1984; Claussen & Lenz, 1 999; Darnell & Hiss, 2 006). If cranberry root nitrate reductase activity is inducible by in cranberry, as commonly found in other species (Oaks, 1 994), then increased assimilation may have increased N translocation to the shoot.…”

Section: Discussionmentioning

confidence: 99%

Inoculation of cranberry (Vaccinium macrocarpon) with the ericoid mycorrhizal fungus Rhizoscyphus ericae increases nitrate influx

2007

View full text Add to dashboard Cite

Summary• Despite the ubiquitous presence of ericoid mycorrhizal (ERM) fungi in cranberry ( Vaccinium macrocarpon ), no prior studies have examined the effect of ERM colonization on influx kinetics. • Here, influx was measured in nonmycorrhizal and mycorrhizal cranberry in hydroponics. Mycorrhizal cranberry were inoculated with the ERM fungus Rhizoscyphus (syn. Hymenoscyphus ) ericae .influx by R. ericae in solution culture was also measured.• Rhizoscyphus ericae influx kinetics were linear when mycelium was exposed for 24 h to 3.8 m M, and saturable when pretreated with 3.8 m M , 50 µ M , or 50 µ M . Both low-N pretreatments induced greater influx than either of the high-N pretreatments. Nonmycorrhizal cranberry exhibited linear influx kinetics. By contrast, mycorrhizal cranberry had saturable influx kinetics, with c . eightfold greater influx than nonmycorrhizal cranberry at concentrations from 20 µ M to 2 m M . There was no influence of pretreatments on cranberry influx kinetics, regardless of mycorrhizal status.• Inoculation with R. ericae increased the capacity of cranberry to utilize -N. This finding is significant both for understanding the potential nutrient niche breadth of cranberry and for management of cultivated cranberry when irrigation water sources contain nitrate.

show abstract

“…Firstly, V. arboreum has a thick root system with long roots, and because of this, it is resistant towards draught and is able to tolerate draught more than V. corymbosum. Vaccinium corymbosum L. has specific requirements regarding soil pH, it can tolerate a pH at around 4,0-5,5 but V. arboreum can tolerate soil pH between 4 and 7 (Darnell and Hiss, 2006). In general through grafting V. corymbosum over V. arboreum the aim is to raise the crown (Ballington et al, 1990), have a more powerful root system and that the blueberry is more tolerant towards soil reaction starting from pH 4-7 bearing in mind that the soil pH is a limiting factor for blueberry cultivation.…”

Section: Introductionmentioning

confidence: 99%

IMPACT OF THE SHOOT MATURITY LEVEL ON ROOTING, ACCLIMATISATION OF GREEN AND SEMI-HARDWOOD CUTTINGS OF THE BLUEBERRY (Vaccinium corymbosum L.) CV. BLUECROP STIMULATED WITH INDOL BUTYRIC ACID AND NAPHTHALENE ACETIC ACID

Braha¹,

Rama²

2018

AgricultForest

View full text Add to dashboard Cite

In this research we have tested the rooting abilities of green and semihardwood cuttings with leaves in the ennobled blueberry (Vaccinium corymbosum L.) Bluecrop cultivar taken at the end of August, from shoots of the year when growth was stopped and they had not reached one year. These cuttings were stimulated with IBA (Indol butyric Acid) and NAA (Naphthalene Acetic Acid) in concentrations of 1500 ppm, 3000 ppm, 4500 ppm and in the variation control without treatment, in substrate turf, turf-perlite 2:1. The results in both types of cuttings show differences of statistical significance (p = 0.05) and (p = 0.01). Bearing in mind that the greatest rooting ability is in special time periods and based on results from several years, propagation with green cuttings did not produce a high percentage of rooting based on the fact that their rooting is difficult and has reached 37.5% whilst semi-hardwood shoots taken at the same time period have reached a higher percentage (42.5%) which is definitely related to the physiological condition of the shoot.

show abstract

Uptake and Assimilation of Nitrate and Iron in Two Vaccinium Species as Affected by External Nitrate Concentration

Cited by 24 publications

References 30 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

Inoculation of cranberry (Vaccinium macrocarpon) with the ericoid mycorrhizal fungus Rhizoscyphus ericae increases nitrate influx

IMPACT OF THE SHOOT MATURITY LEVEL ON ROOTING, ACCLIMATISATION OF GREEN AND SEMI-HARDWOOD CUTTINGS OF THE BLUEBERRY (Vaccinium corymbosum L.) CV. BLUECROP STIMULATED WITH INDOL BUTYRIC ACID AND NAPHTHALENE ACETIC ACID

Contact Info

Product

Resources

About