Fine root diameters can change in response to changes in nutrient concentrations

Zobel, R. W.; Kinraide, Thomas B.; Baligar, V. C.

doi:10.1007/s11104-007-9341-2

Cited by 164 publications

(120 citation statements)

References 17 publications

(14 reference statements)

Supporting

Mentioning

107

Contrasting

Unclassified

Order By: Relevance

“…The missing root fraction in the MRI data is relatively well defined, and thus poses no problem for data interpretation. Root diameters have been found to depend on soil strength (Kirby and Bengough, 2002), soil water content (Kuchenbuch et al, 2006), or nutrition levels (Zobel et al, 2007), and thus the ability to accurately determine diameters may be of importance for many studies. It is difficult to say what the precise accuracy is of our diameter estimates, as we do not have a coregistration of the magnetic resonance images with the WinRHIZO scans.…”

Section: Discussionmentioning

confidence: 99%

Quantitative 3D Analysis of Plant Roots Growing in Soil Using Magnetic Resonance Imaging

et al. 2016

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Quantitative 3D Analysis of Plant Roots Growing in Soil Using Magnetic Resonance Imaging

et al. 2016

View full text Add to dashboard Cite

“…During preliminary tests, a gradual accumulation of nutrients and heavy 171 metals was detected in the columns. Therefore, pots were flushed weekly with 172 deionized water according to the recommendations of Zobel et al (2007). 173…”

Section: Lambrechts Et Al Submitted) Plants May Help Stabilize Conmentioning

confidence: 99%

Comparative analysis of Cd and Zn impacts on root distribution and morphology of Lolium perenne and Trifolium repens: implications for phytostabilization

et al. 2013

View full text Add to dashboard Cite

31 32Backgrounds and Aims Plant phytostabilization potential is a direct function of root 33systems. An experimental design was developed to investigate the impact of Cd and 34Zn on the root distribution and morphology of Lolium perenne and Trifolium repens. 35Methods Seedlings were transplanted into columns filled with washed quartz and 36 irrigated daily with Cd-or Zn-containing nutrient solutions during one month. Roots 37were then harvested at different depth and scanned to determine root length density 38 (RLD) and diameter. Pot experiments were also performed to quantify metal, lignin 39 and structural polysaccharides concentrations as well as cell viability.

show abstract

“…Curiously, although abiotic factors such as temperature, nutrient and water availability may stimulate fine root production, controversial results have been found in different studies (Gill & Jackson 2000, Yavitt & Wright 2001, Zobel et al 2007). For instance, seasonal variations and increases in RLD were not observed along an altitudinal gradient from 1900 to 3000 m at tropical forests in Ecuador (Soethe et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Fine root biomass and root length density in a lowland and a montane tropical rain forest, SP, Brazil

et al. 2011

View full text Add to dashboard Cite

root biomass and root length density in a lowland and a montane tropical rain forest, SP, Brazil. Biota Neotrop. 11(3): http://www.biotaneotropica.org.br/v11n3/en/abstract?article+bn03411032011Abstract: Fine roots, <2 mm in diameter, are responsible for water and nutrient uptake and therefore have a central role in carbon, nutrient and water cycling at the plant and ecosystem level. The root length density (RLD), fine root biomass (FRB) and vertical fine root distribution (VRD) in the soil profile have been used as good descriptors of resource-use efficiency and carbon storage in the soil. Along altitudinal gradients, decreases in temperature and radiation inputs (depending on the frequency of fog events) may reduce decomposition rates and nutrient availability what might stimulate plants to invest in fine roots, increasing acquisition of resources. We evaluated the seasonal variation of fine root parameters in a Lowland and Montane forest at the Atlantic Rain Forest. We hypothesized that, due to lower decomposition rates at the Montane site, the FRB and RLD at soil surface will be higher in this altitude, which can maximize the efficiency of resource absorption. FRB and RLD were higher in the Montane forest in both seasons, especially at the 0-5 layer. At the 0-5 soil layer in both sites, RLD increased from dry to wet season independently of variations in FRB. Total FRB in the top 30 cm of the soil at the Lowland site was significantly lower (334 g.m -2 in the dry season and 219 g.m -2 in the wet season) than at the Montane forest (875 and 451 g.m -2 in the dry and wet season, respectively). In conclusion, despite the relevance of FRB to describe processes related to carbon dynamics, the variation of RLD between seasons, independently of variations in FRB, indicates that RLD is a better descriptor for studies characterizing the potential of water and nutrient uptake at the Atlantic Rain Forest. The differences in RLD between altitudes within the context of resource use should be considered in studies about plant establishment, seedling growth and population dynamics at the Atlantic Rain Forest. At the ecosystem level, RLD and it seasonal variations may improve our understanding of the Atlantic rain forest functioning in terms of the biogeochemical fluxes in a possible scenario of climate change and environmental changes. Resumo: Raízes finas, <2 mm de diâmetro, são as principais responsáveis pela absorção de água e nutrientes e, portanto, têm um papel central nos ciclos carbono, água e nutrientes, desde o nível da planta até o ecossistêmico. A densidade do comprimento radicular (DCR), a biomassa de raízes finas (BRF) e a distribuição vertical de raízes finas (DVR) no perfil do solo têm sido utilizados como bons descritores da eficiência no uso de recursos e de estocagem de carbono no solo. Ao longo de gradientes altitudinais, a diminuição da temperatura e da radiação solar (dependendo da frequência de eventos de neblina) podem reduzir as taxas de decomposição e disponibilidade de nutrientes, o que poderia estim...

show abstract

Fine root diameters can change in response to changes in nutrient concentrations

Cited by 164 publications

References 17 publications

Quantitative 3D Analysis of Plant Roots Growing in Soil Using Magnetic Resonance Imaging

Quantitative 3D Analysis of Plant Roots Growing in Soil Using Magnetic Resonance Imaging

Comparative analysis of Cd and Zn impacts on root distribution and morphology of Lolium perenne and Trifolium repens: implications for phytostabilization

Fine root biomass and root length density in a lowland and a montane tropical rain forest, SP, Brazil

Contact Info

Product

Resources

About