Calcium oxalate contribution to calcium cycling in forests of contrasting nutrient status

Dauer, Jenny M.; Perakis, Steven S.

doi:10.1016/j.foreco.2014.08.029

Cited by 44 publications

(40 citation statements)

References 63 publications

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“…In both beech and sycamore maple, leaves and bark were rich in biominerals, whereas wood was quite poor in biominerals. This observation was consistent with the chemical analyses generated in our study or coming from other studies (Cornelis et al., ; Dauer & Perakis, ). For both tree species, biominerals were classified into three groups according to their crystallochemistry: (i) amorphous silica, (ii) calcium oxalate, and (iii) complex biominerals chemistry.…”

Section: Discussionsupporting

confidence: 94%

“…As this relationship is valid whatever the compartments, the tree species, and the soil types are, our results suggest that CaOx precipitation seems to be controlled by the concentrations of Ca tot . Such relationship was also observed for Douglas trees developed on two types of soils (rich and low in Ca; Figure ; Dauer & Perakis, ). In this case, the linear relationship differed from the one obtained in our study, suggesting that the tree species and/or the climatic conditions determine the formation of CaOx.…”

Section: Discussionsupporting

confidence: 64%

“…Spherical biominerals composed of complex elements were identified in ray cells of roots and could result from detoxification processes or storage forms. A strong correlation between Ca tot and Ca Ox was found in this study and in Dauer and Perakis (), but the equations of the regression lines differ. To identify which factors impact these equations, further work is needed using several tree species, different climatic conditions, and more extreme soil types.…”

Section: Concluding Remarks and Future Directionssupporting

confidence: 70%

“…Indeed, several studies reported that they may play a role in the protection of plants against herbivores and phytopathogens (Currie & Perry, ; Franceschi & Nakata, ; Lins, Barros, da Cunha, & Miguens, ; Nakata, ). Furthermore, biomineralization processes in plants are involved in the biogeochemical cycles of calcium, silicon, and in a lower degree in the cycle of carbon with the sequestration of atmospheric CO 2 (Braissant, Cailleau, Aragno, & Verrecchia, ; Cailleau, Braissant, & Verrecchia, ; Conley, ; Cornelis, Ranger, Iserentant, & Delvaux, ; Dauer & Perakis, ; Meunier et al., ; Tooulakou et al., ; Van Cappellen, ).…”

Section: Introductionmentioning

confidence: 99%

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Identification, distribution, and quantification of biominerals in a deciduous forest

Krieger¹,

Calvaruso²,

Morlot

et al. 2017

Geobiology

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Biomineralization is a common process in most vascular plants, but poorly investigated for trees. Although the presence of calcium oxalate and silica accumulation has been reported for some tree species, the chemical composition, abundance, and quantification of biominerals remain poorly documented. However, biominerals may play important physiological and structural roles in trees, especially in forest ecosystems, which are characterized by nutrient-poor soils. In this context, our study aimed at investigating the morphology, distribution, and relative abundance of biominerals in the different vegetative compartments (foliage, branch, trunk, and root) of Fagus sylvatica L. and Acer pseudoplatanus L. using a combination of scanning electron microscopy and tomography analyses. Biomineral crystallochemistry was assessed by X-ray diffraction and energy-dispersive X-ray analyses, while calcium, silicon, and oxalic acid were quantified in the compartments and at the forest scale. Our analyses revealed that biominerals occurred as crystals or coating layers mostly in bark and leaves and were identified as opal, whewellite, and complex biominerals. In both tree species, opal was mostly found in the external tissues of trunk, branch, and leaves, but also in the roots of beech. In the stand, opal represents around 170 kg/ha. Whewellite was found to suit to conductive tissues (i.e., axial phloem parenchyma, vascular bundles, vessel element) in all investigated compartments of the two tree species. The shape of whewellite was prismatic and druses in beech, and almost all described shapes were seen in sycamore maple. Notably, the amount of whewellite was strongly correlated with the total calcium in all investigated compartments whatever the tree species is, suggesting a biologic control of whewellite precipitation. The amount of whewellite in the aboveground biomass of Montiers forest was more important than that of opal and was around 1170 kg/ha. Therefore, biominerals contribute in a substantial way to the biogeochemical cycles of silicon and calcium.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionsupporting

confidence: 64%

Section: Concluding Remarks and Future Directionssupporting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Identification, distribution, and quantification of biominerals in a deciduous forest

Krieger¹,

Calvaruso²,

Morlot

et al. 2017

Geobiology

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“…In line with our results, Negrete-Yankelevich et al (2008) and Li et al (2007) also found initial leaf litter Ca along with other initial chemical quality in relation with mass and nutrient remaining. Calcium, often present as Ca oxalate crystals in forest ecosystems, is positively associated with leaf litter decomposition (Dauer and Perakis 2014) via the dietary needs of the decomposer community or provide an indirect positive link to decomposition since leaf litter Ca was significantly correlated to leaf litter nitrogen (Lang et al 2009). On the other side as Kurokawa et al (2010) found, initial leaf litter C/P ratio was the best predictor of leaf litter decomposition rate in nitrogen-fixing group in our study.…”

Section: Treesmentioning

confidence: 99%

Different predictors determining litter decomposition rate in functional groups of the tree plantations in a common garden

Sayad

Hosseini

Gholami

et al. 2015

Trees

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Key message This study shows that functional grouping of the species based on nitrogen fixing ability along with initial leaf litter C/P, C/N, P and N could help us predicting leaf litter decomposition rate. Abstract Grouping species into functional groups is a good approach to understanding exotic plants impacts on ecosystem functioning in their new environment. One key plant trait that has large ecosystem-level consequences is the ability of plants to fix atmospheric nitrogen into plant available forms. Most previous studies have reported faster leaf litter decomposition rates of nitrogen fixing than nonnitrogen-fixing species, supporting the separation of these as functional groups. Here, we present a multispecies monitoring of litter decomposability of seven tree species in a 1 year decomposition experiment in outdoor litter bed common garden experiment in river floodplain in South Western Iran. We tested within-and between-functionalgroups for rates of leaf litter decomposition and nutrient dynamics. Our results highlight that nitrogen-fixing trees and non-nitrogen-fixing trees can be distinguished based on specific leaf area and leaf litter traits. The interesting results were that the leaf litter decomposition rates of the two functional groups were related to different initial leaf litter traits. Leaf litter decomposition rates of nitrogenfixing trees were related to initial leaf litter C/P, C/N, N, P and Ca, while leaf litter decomposition rates of non-nitrogen-fixing trees were only related to initial leaf litter Ca. Whereas specific leaf area was the best predictor of leaf litter decomposition rates among all the species. Therefore, our results revealed that both initial leaf litter traits and functional groups were predicting leaf litter decomposition rates.

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Mechanisms of nitrogen deposition effects on temperate forest lichens and trees

et al. 2017

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Abstract. We review the mechanisms of deleterious nitrogen (N) deposition impacts on temperate forests, with a particular focus on trees and lichens. Elevated anthropogenic N deposition to forests has varied effects on individual organisms depending on characteristics both of the N inputs (form, timing, amount) and of the organisms (ecology, physiology) involved. Improved mechanistic knowledge of these effects can aid in developing robust predictions of how organisms respond to either increases or decreases in N deposition. Rising N levels affect forests in micro-and macroscopic ways from physiological responses at the cellular, tissue, and organism levels to influencing individual species and entire communities and ecosystems. A synthesis of these processes forms the basis for the overarching themes of this paper, which focuses on N effects at different levels of biological organization in temperate forests. For lichens, the mechanisms of direct effects of N are relatively well known at cellular, organismal, and community levels, though interactions of N with other stressors merit further research. For trees, effects of N deposition are better understood for N as an acidifying agent than as a nutrient; in both cases, the impacts can reflect direct effects on short time scales and indirect effects mediated through long-term soil and belowground changes. There are many gaps on fundamental N use and cycling in ecosystems, and we highlight the most critical gaps for understanding potential deleterious effects of N deposition. For lichens, these gaps include both how N affects specific metabolic pathways and how N is metabolized. For trees, these gaps include understanding the direct effects of N deposition onto forest canopies, the sensitivity of different tree species and mycorrhizal symbionts to N, the influence of soil properties, and the reversibility of N and acidification effects on plants and soils. Continued study of how these N response mechanisms interact with one another, and with other dimensions of global change, remains essential for predicting ongoing changes in lichen and tree populations across North American temperate forests.

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Calcium oxalate contribution to calcium cycling in forests of contrasting nutrient status

Cited by 44 publications

References 63 publications

Identification, distribution, and quantification of biominerals in a deciduous forest

Identification, distribution, and quantification of biominerals in a deciduous forest

Different predictors determining litter decomposition rate in functional groups of the tree plantations in a common garden

Mechanisms of nitrogen deposition effects on temperate forest lichens and trees

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