Nutrient resorption from senescing leaves of epiphytes, hemiparasites and their hosts in tropical forests of Sri Lanka

Suriyagoda, L. D. B.; Ranil, R. H. G.; Pushpakumara, Gamini; Lambers, Hans

doi:10.1093/jpe/rtx049

Cited by 7 publications

(7 citation statements)

References 43 publications

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“…1). Furthermore, the higher leaf K concentration in epiphytic ferns might relate to their ability to e ciently resorb K more than terrestrial ferns (Suriyagoda et al 2018). Epiphytic bromeliaceae e ciently absorb K and maintain it in their green leaves through the means of foliar trichomes.…”

Section: Discussionmentioning

confidence: 99%

Tropical Terrestrial And Epiphytic Ferns Have Different Leaf Stoichiometry With Ecological Implications.

Sulaiman

Cicuzza

2021

Preprint

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Terrestrial and epiphytic herbaceous forest species have different ecology and leaf stoichiometry. In tropical regions, a great component of herbaceous forest species is represented by ferns with different lifeforms. However, little is known about the differences in leaf stoichiometry between the lifeforms. We account for the concentrations of leaf elements (N, P, K, Ca and Mg) between terrestrial and epiphyte lifeforms and evolutionary clades. The fern species were sampled from the forest of Brunei Darussalam. Five leaves were collected from 5 individuals from 16 terrestrial and 4 epiphytic ferns. The leaves were then acid-digested and analyzed. Epiphytic species had higher concentration of most of the leaf elements. The N:P ratio showed that the epiphytic species being much more nutrient-limited, relying on stochastic events, compared to the terrestrial species which have a constant availability of soil elements. Epiphytes showed a higher concentration of P, which could be explained by their luxury consumption. Epiphytes accumulate elements in a higher concentration than is needed by their normal metabolic activity. Furthermore, epiphyte species have a significantly higher concentration of Ca which could be interpreted as necessity of coping with severe habitat conditions with schlerophyll leaves. The results bring in more information on the poorly studied stoichiometry of tropical Asian fern species. Important in understanding the eco-physiology of terrestrial and epiphytic ferns and determining which species are sensitive to the different forest management and the effect of climate change. This, is in addition to the associated mechanisms.

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Section: Discussionmentioning

confidence: 99%

Tropical Terrestrial And Epiphytic Ferns Have Different Leaf Stoichiometry With Ecological Implications.

Sulaiman

Cicuzza

2021

Preprint

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“…However, other studies have also shown positive relations between soil fertility and different groups of epiphytes (e.g., Boelter, Dambros, Nascimento, & Zartman, ; Gentry & Emmons, ), including ferns (Cardelús & Mack, ). This can be attributed to the fact that foliar leakage and litter from their host species are important nutrient sources for epiphytes, and relations of epiphyte mineral nutrient concentrations and those of host trees can be expected through their habitat links (Suriyagoda, Rajapaksha, Pushpakumara, & Lambers, ).…”

Section: Discussionmentioning

confidence: 99%

Distinct responses of terrestrial and epiphytic ferns and lycophytes along an elevational gradient in Southern Brazil

Nervo

Andrade

Tornquist

et al. 2019

J Vegetation Science

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Questions What are the drivers that govern fern and lycophyte community composition across different elevation zones in the South Brazilian Atlantic Forest? Does explanatory power of the models increase when we consider substrate‐based life forms separately? Do terrestrial and epiphytic species respond similarly to environmental drivers? Study site Four distinct elevation zones of the Atlantic Rain Forest sensu stricto in northeastern Rio Grande do Sul, Brazil. Method Variation partitioning was used to investigate the role of climatic, edaphic and spatial variation on species composition at different spatial scales. We considered both the entire community and subsets with either only epiphytic or terrestrial species. Results On the broad scale, environmental variables were the most important in shaping the fern and lycophyte community composition. Edaphic filters had a more important role for the terrestrial community, and climatic filters for epiphytic species. Considering epiphytic and terrestrial species separately increased the explanatory power of the models. Conclusions Changes in community composition of ferns and lycophytes along an elevational gradient in the South Brazilian Atlantic Forest are primarily driven by niche processes. Ferns and lycophytes found on different substrates (epiphytic vs terrestrial species) show distinct responses to environmental factors and thus should be considered separately in ecological studies.

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“…Phosphorus‐resorption efficiency (PRE) is defined as the percentage of P resorbed from senescing leaves before abscission relative to the amount in mature green leaves (Killingbeck, 1996). Phosphorus‐resorption efficiency increases with decreasing soil P availability (Hidaka & Kitayama, 2011; Reed et al ., 2012; Hayes et al ., 2014; Suriyagoda et al ., 2017; Guilherme Pereira et al ., 2019). The global average of PRE is c .…”

Section: Plant Traitsmentioning

confidence: 99%

“…Phosphorus-resorption efficiency (PRE) is defined as the percentage of P resorbed from senescing leaves before abscission relative to the amount in mature green leaves (Killingbeck, 1996). Phosphorus-resorption efficiency increases with decreasing soil P availability (Hidaka & Kitayama, 2011;Reed et al, 2012;Hayes et al, 2014;Suriyagoda et al, 2017;Guilherme Pereira et al, 2019). The global average of PRE is c. 50-60% in evergreen angiosperms (Yuan & Chen, 2009;Vergutz et al, 2012), while PRE can exceed 80% in some species native to very low-P habitats (Denton et al, 2007;Hidaka & Kitayama, 2011;Lambers et al, 2015;Suriyagoda et al, 2017;Tsujii et al, 2017;Hayes et al, 2018).…”

Section: Resorption Of P Fractions During Leaf Senescencementioning

confidence: 99%

“…The global average of PRE is c . 50–60% in evergreen angiosperms (Yuan & Chen, 2009; Vergutz et al ., 2012), while PRE can exceed 80% in some species native to very low‐P habitats (Denton et al ., 2007; Hidaka & Kitayama, 2011; Lambers et al ., 2015; Suriyagoda et al ., 2017; Tsujii et al ., 2017; Hayes et al ., 2018). However, so far, little is known about the biochemical mechanisms underlying this greater PRE and the types of P fractions resorbed.…”

Section: Plant Traitsmentioning

confidence: 99%

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Phosphorus fractions in leaves

et al. 2022

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Leaf phosphorus (P) comprises four major fractions: inorganic phosphate (P i ), nucleic acids, phospholipids, P-containing metabolites and a residual fraction. In this review paper, we investigated whether allocation of P fractions varies among groups of terrestrial vascular plants, and is indicative of a species' strategy to use P efficiently. We found that as leaf total P concentration increases, the P i fraction increases the most, without a plateau, while other fractions plateau. Variability of the concentrations of leaf P fractions is greatest among families > species(family) > regions > plant life forms. The percentage of total P allocated to nucleic acid-P (20-35%) and lipid-P (14-34%) varies less among families/species. High photosynthetic P-use efficiency is associated with low concentrations of all P fractions, and preferential allocation of P to metabolite-P and mesophyll cells. Sequential resorption of P from senescing leaves starts with P i , followed by metabolite-P, and then other organic P fractions. Allocation of P to leaf P fractions varies with season. Leaf phytate concentrations vary considerably among species, associated with variation in photosynthesis and defence. Plasticity of P allocation to its fractions is important for acclimation to low soil P availability, and species-specific P allocation is needed for cooccurrence with other species.

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Nutrient resorption from senescing leaves of epiphytes, hemiparasites and their hosts in tropical forests of Sri Lanka

Cited by 7 publications

References 43 publications

Tropical Terrestrial And Epiphytic Ferns Have Different Leaf Stoichiometry With Ecological Implications.

Tropical Terrestrial And Epiphytic Ferns Have Different Leaf Stoichiometry With Ecological Implications.

Distinct responses of terrestrial and epiphytic ferns and lycophytes along an elevational gradient in Southern Brazil

Phosphorus fractions in leaves

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