Nitrogen uptake strategies of edaphically specialized Bornean tree species

Russo, Sabrina E.; Kochsiek, Amy E.; Olney, Jocelyn; Thompson, Lauren; Miller, Amy E.; Tan, Sylvester

doi:10.1007/s11258-013-0260-4

Cited by 17 publications

(29 citation statements)

References 55 publications

(73 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…), which is converted to nitrate (NO 3 -). Competition in the rhizosphere for those different forms of N can affect the partitioning of soil N among plant species, and it is thus expected to influence the distribution and coexistence of plant species (Russo et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…In fact, the distribution of many species in Southeast Asian tropical rainforest is closely related to soil conditions (Ashton 2014), including soil N pool quantity, e.g., composition and amount of ammonium (NH 4 ? ) and nitrate (NO 3 -) (Palmiotto et al 2004;Russo et al 2005Russo et al , 2013. Under N-limited conditions, plants usually develop various species-specific N-uptake strategies (Schulze et al 1994).…”

Section: Introductionmentioning

confidence: 99%

“…Understanding N-uptake strategy in diverse tropical rainforest trees may contribute to our knowledge of species distribution, N cycling and proper conservation of biodiversity in tropical rainforest plant communities. However, the difficulty of studying belowground functions such as root ectomycorrhizal symbiosis limits our understanding of N-uptake strategy in tropical rainforests (Russo et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Species-specific symbiotic microorganisms and preferences for inorganic nitrogen sources such as NH 4 ? or NO 3 -are considered potentially important factors that drive leaf d 15 N variations (Houlton et al 2006;Mayor et al 2012;Russo et al 2013). For example, N fixing or N uptake through mycorrhizal fungi significantly changes leaf d 15 N values because 15 N is depleted when N is translocated from mycorrhizal fungi to plants (Hobbie and Högberg 2012).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Variation in leaf and soil δ15N in diverse tree species in a lowland dipterocarp rainforest, Malaysia

Tanaka-Oda

Tanaka

Inoue

et al. 2015

Trees

View full text Add to dashboard Cite

Key message Large variations in leaf d 15 N in Bornean tropical rainforest trees may indicate that various tropical species have species-specific strategy for nitrogen uptake under low soil nutrient conditions, including root symbiotic microorganisms such as ectomycorrhiza.Abstract Lowland tropical rainforests in Southeast Asia are characterized by high species diversity despite limited soil nutrient conditions. The plant nitrogen isotope ratio (d 15 N) reflects plant uptake of soil nitrogen. We analyzed d 15 N values and nitrogen content (N %) in leaves and roots of 108 woody species with different types of symbiotic microorganisms, of different life forms (emergent, canopy, sub-canopy, understory, and canopy gap species), and from different families in a Bornean lowland dipterocarp forest to gain more insight into the diversity of nitrogen uptake strategy in the rhizosphere. Leaf d 15 N values in the species studied varied largely from -7.2 to 5.0 %, which is comparable to the values of known Asian trees including temperate, sub-tropical, and tropical mountain forests. Leaf d 15 N also varied significantly among both life forms and families, though the phylogenetically independent contrast (PIC) relationships were not statistically significant among life form, family, and symbiotic types. Some families showed specific leaf d 15 N values; Dipterocarpaceae, the dominant family in the canopy layer with symbiotic ectomycorrhiza in Southeast Asia, had small intraspecific variation and higher leaf d 15 N values (0.03 %) compared with species exhibiting arbuscular mycorrhiza, whereas several families such as Burseraceae, Euphorbiaceae, and Myrtaceae showed large interspecific variation in leaf d 15 N (e.g., from -7.2 to 5.0 % in Euphorbiaceae). These variations suggest that tropical species may have family-or species-specific strategy, such as root symbiotic microorganisms, for nitrogen uptake under low-nutrient conditions in tropical rainforests in Southeast Asia.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Variation in leaf and soil δ15N in diverse tree species in a lowland dipterocarp rainforest, Malaysia

Tanaka-Oda

Tanaka

Inoue

et al. 2015

Trees

View full text Add to dashboard Cite

show abstract

“…A number of studies have linked the N uptake strategies of tropical trees to their successional status (see [5] for review). In contrast, Houlton et al [6] and Russo et al [7] showed that coexistence among functionally diverse species was not linked to the particular form of N available. In French Guiana, Roggy et al [2] reported that among non-N 2 -fixing trees two groups of late-successional species with contrasting natural leaf 15 N abundance coexisted.…”

Section: Introductionmentioning

confidence: 99%

Complementary N Uptake Strategies between Tree Species in Tropical Rainforest

Roggy

Schimann

Sabatier

et al. 2014

International Scholarly Research Notices

View full text Add to dashboard Cite

Within tree communities, the differential use of soil N mineral resources, a key factor in ecosystem functioning, may reflect functional complementarity, a major mechanism that could explain species coexistence in tropical rainforests. Eperua falcata and Dicorynia guianensis, two abundant species cooccurring in rainforests of French Guiana, were chosen as representative of two functional groups with complementary N uptake strategies (contrasting leaf δ 15N signatures related to the δ 15N of their soil N source, NO3 − or NH4 +). The objectives were to investigate if these strategies occurred under contrasted soil N resources in sites with distinct geological substrates representative of the coastal rainforests. Results showed that species displayed contrasting leaf δ 15N signatures on both substrates, confirming their complementary N uptake strategy. Consequently, their leaf 15N can be used to trace the presence of inorganic N-forms in soils (NH4 + and NO3 −) and thus to indicate the capacity of soils to provide each of these two N sources to the plant community.

show abstract

Plasticity in nitrogen uptake among plant species with contrasting nutrient acquisition strategies in a tropical forest

Andersen

Mayor

Turner

2017

Ecology

View full text Add to dashboard Cite

Nitrogen (N) availability influences the productivity and distribution of plants in tropical montane forests. Strategies to acquire soil N, such as direct uptake of organic compounds or associations with root symbionts to enhance N acquisition in exchange for carbon (C), may facilitate plant species coexistence and ecosystem N retention. Alternatively, rapid microbial turnover of soil N forms in tropical soils might promote flexible plant N-uptake strategies and mediate species coexistence. We tested whether sympatric plant species with different root symbiont associations, and therefore potentially different nutrient acquisition strategies, partition chemical forms of N or show plasticity in N uptake in a tropical pre-montane forest in Panama. We traced the movement of three N forms into soil pools, microbes, and seedlings of eleven species differing in root traits. Seedlings were grown in a split-plot field transplant experiment, with plots receiving equimolar mixtures of ammonium, nitrate, and glycine, with one form isotopically labeled in each block. After 48 h, more N was recovered in microbes than in plants, while all pools (extractable organic and inorganic N, microbial biomass, and leaves) contained greater amounts of N from nitrate than from ammonium or glycine. Furthermore, C from dual-labeled glycine was not recovered in the leaves of any seedling, suggesting the studied species do not directly take up organic N or transform organic N prior to translocation to leaves. Nitrogen uptake differed by root symbiont group only for nitrate, with greater N recovery in plants with arbuscular mycorrhizal (AM) associations or proteoid roots compared to orchids. Some root trait groups differed in N recovery among N forms, with greater nitrate uptake than ammonium or glycine by AM-associated and N -fixing plants. However, only five of eleven species showed differences in uptake among N forms. These results indicate flexibility in uptake of N forms in tropical plants across root trait groups, with only a few species displaying weak preferences for a specific N form.

show abstract

Nitrogen uptake strategies of edaphically specialized Bornean tree species

Cited by 17 publications

References 55 publications

Variation in leaf and soil δ15N in diverse tree species in a lowland dipterocarp rainforest, Malaysia

Variation in leaf and soil δ15N in diverse tree species in a lowland dipterocarp rainforest, Malaysia

Complementary N Uptake Strategies between Tree Species in Tropical Rainforest

Plasticity in nitrogen uptake among plant species with contrasting nutrient acquisition strategies in a tropical forest

Contact Info

Product

Resources

About