Microbial colonization and decomposition of invasive and native leaf litter in the littoral zone of lakes of different trophic state

Krevš, Alina; Kucinskiene, A.; Mačkinaitė, R.; Manusadžianas, Levonas

doi:10.1016/j.limno.2017.08.002

Cited by 7 publications

(3 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We assume that microbial decomposition is negligible during the first 3-4 h of immersion of tea bags in soil or water, which is consistent with colonization dynamics of leaf litter through fungi and bacteria (e.g., Krevš et al, 2017). Nevertheless, this timeframe is sufficient to capture the bulk of leaching losses as shown by our only focused on lentic aquatic habitats while we present a gradient in moisture and its effects on the leaching process.…”

Section: F I G U R Esupporting

confidence: 69%

“…However, several authors (e.g., Cotrufo et al, 2010 ; Gessner et al, 1999 ; MacDonald et al, 2018 ) have noted the problem of an initial large amount of leaching (within the first 60 min) of the soluble fraction from litterbags or tea bags, and especially in very wet habitats (Marley et al, 2019 ). This mass loss might erroneously be attributed to microbial decomposition, although studies of colonization dynamics of leaf litter through fungi and bacteria show that these organisms need a few hours to colonize the incubated substrate (Krevš et al, 2017 ). For lakes, an adjusted equation has been suggested to account for the initial leaching (Seelen et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of initial leaching for estimates of mass loss and microbial decomposition—Call for an increased nuance

Lind

Harbicht

Bergman

et al. 2022

Ecology and Evolution

View full text Add to dashboard Cite

Decomposition is essential to carbon, nutrient, and energy cycling among and within ecosystems. Several methods have been proposed for studying litter decomposition by using a standardized and commercially available substrate. One of these methods is the Tea Bag Index (TBI) which uses tea bags (green and rooibos tea) incubated for ~90 days. The TBI is now applied all over the globe, but despite its usefulness and wide application, the TBI (as well as other methods) does not explicitly account for the differences in potential loss of litter mass due to initial leaching in habitats with large differences in moisture. We, therefore, studied the short‐term mass losses (3–4 h) due to initial leaching under field and laboratory conditions for green and rooibos tea using the TBI and contextualized our findings using existing long‐term mass loss (90 days) in the field for both aquatic and terrestrial environments. For both tea litter types, we found a fast initial leaching rate, which could be mistaken for decomposition through microbial activity. This initial leaching was higher than the hydrolyzable fraction given in the description of the TBI. We also found that leaching increased with increasing temperature and that leaching in terrestrial environments with high soil moisture (>90%) is almost as large as in aquatic environments. When comparing our findings to long‐term studies, we found that up to 30–50% of the mass loss of green tea reported as decomposition could be lost through leaching alone in high moisture environments (>90% soil moisture and submerged). Not accounting for such differences in initial leaching across habitats may lead to a systematic overestimation of the microbial decomposition in wet habitats. Future studies of microbial decomposition should adjust their methods depending on the habitat, and clearly specify the type of decomposition that the study focuses on.

show abstract

Section: F I G U R Esupporting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Effects of initial leaching for estimates of mass loss and microbial decomposition—Call for an increased nuance

Lind

Harbicht

Bergman

et al. 2022

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…Our results suggest that OM quality does not affect the biochemical fate of carbon, but it has effects on the decomposition rate, as shown previously (e.g., Krevš et al, 2017;Muto et al, 2011). Among all leaf species, 80%-88% of leaf carbon taken up was respired daily, whereas the remaining 12%-20% of utilized leaf carbon was assimilated into biomass, supporting previous studies (Attermeyer et al, 2013;Taipale et al, 2023;Vesamäki et al, 2022).…”

Section: The Processing and Biochemical Fate Of Terrestrial Carbon In...supporting

confidence: 92%

Recycled by leaf inhabitants: Terrestrial bacteria drive the mineralization of organic matter in lake water

Vesamäki,

Rigaud,

Litmanen

et al. 2024

Ecosphere

View full text Add to dashboard Cite

Terrestrial organic matter subsidizes aquatic food webs and plays an important role in carbon cycling in lake ecosystems, where it is decomposed mainly by microbes. However, the contribution of terrestrial and aquatic microbiomes on terrestrial carbon cycling and their effects on the biochemical fate of carbon has remained understudied. Therefore, we explored the microbial carbon utilization of three chemically differing leaf species in lake water in microcosms and quantified the biochemical endpoints of leaf carbon in CO2, CH4, and microbial biomass. Additionally, we identified microbial taxa responsible for leaf carbon recycling and studied the role of epiphytic and endophytic leaf microbiomes in microbial community succession in lake water. Microbially utilized leaf carbon was mainly respired (82.7 ± 1.4%), whereas a small proportion (17.1 ± 1.4%) was assimilated into biomass. Carbon from nitrogen‐rich alder leaves was taken up at the fastest rate, whereas birch leaf addition produced the highest concentrations of CH4, suggesting that leaf chemistry affects the decomposition rate and biochemical fate of carbon. In particular, terrestrial bacteria shaped the succession of aquatic bacterial communities. The addition of leaves resulted in the equal contribution of epiphytic and endophytic bacteria in the lake water, whereas epiphytic fungi dominated the fungal community structure. Our results suggest that terrestrial bacteria originating from terrestrial leaves influence the microbiome succession in lake ecosystems and play a key role in linking terrestrial carbon to an aquatic food web and determining the quality of carbon emissions that are released into the atmosphere.

show abstract

Land cover affects the breakdown of Pinus elliottii needles litter by microorganisms in soil and stream systems of subtropical riparian zones

et al. 2021

View full text Add to dashboard Cite

Microbial colonization and decomposition of invasive and native leaf litter in the littoral zone of lakes of different trophic state

Cited by 7 publications

References 53 publications

Effects of initial leaching for estimates of mass loss and microbial decomposition—Call for an increased nuance

Effects of initial leaching for estimates of mass loss and microbial decomposition—Call for an increased nuance

Recycled by leaf inhabitants: Terrestrial bacteria drive the mineralization of organic matter in lake water

Land cover affects the breakdown of Pinus elliottii needles litter by microorganisms in soil and stream systems of subtropical riparian zones

Contact Info

Product

Resources

About