Aquatic quillworts, <i>Isoetes echinospora</i> and <i>I. lacustris</i> under acidic stress-A review from a temperate refuge

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00583945" target="_blank" >RIV/60077344:_____/23:00583945 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1002/ece3.9878" target="_blank" >https://doi.org/10.1002/ece3.9878</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ece3.9878" target="_blank" >10.1002/ece3.9878</a>

Result language

angličtina

Original language name

Aquatic quillworts, <i>Isoetes echinospora</i> and <i>I. lacustris</i> under acidic stress-A review from a temperate refuge

Original language description

Quillworts (Isoetes) represent highly specialized flora of softwater lakes, that is, freshwater ecosystems potentially sensitive to acidification. In this paper, we combine a review of previous studies and our new results to address unrecognized reproduction strategies of quillworts to overcome long-term environmental stresses. These strategies play an important role in the plant's ability to overcome atmospheric acidification of freshwaters, protecting the plants until their environment can recover. Environmental drivers of recovery of Isoetes echinospora and I. lacustris were studied in two acidified lakes in the Bohemian Forest (Central Europe). Both populations survived more than 50 years of severe acidification, although they failed to recruit new sporelings. Their survival depended entirely on the resistance of long-living adult plants because the quillworts do not grow clonally. During the past two decades, a renewal of I. echinospora population inhabiting Plesne Lake has been observed, while no such renewal of I. lacustris, dwelling in Cerne Lake, was evident, despite similar changes in water composition occurring in both lakes undergoing advanced recovery from acidification. Our in vitro experiments revealed that the threshold acidity and toxic aluminium concentrations for sporeling survival and recruitment success differed between I. echinospora (pH <= 4.0 and >= 300 mu g L-1 Al at pH 5) and I. lacustris (pH <= 5.0 and >= 100 mu g L-1Al at pH 5). The higher sensitivity of I. lacustris to both stressors likely stems from its year-long germination period and underlines the risk of exposure to chronic or episodic acidification in recovering lakes. By contrast, the shorter germination period of I. echinospora (2-3 months) enables its faster and deeper rooting, protecting this quillwort from periodic acidification during the next snowmelt. Our study brings novel insights into widely discussed environmental issues related to the long-term degradation of softwater lakes, which represent important hotspots of pan-European biodiversity and conservation efforts.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/GA22-05421S" target="_blank" >GA22-05421S: Effects of nitrogen availability and forest status on soil microbiome, nutrient cycling, and biological recovery of acidified waters in mountain ecosy</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Ecology and Evolution

ISSN

2045-7758

e-ISSN

2045-7758

Volume of the periodical

13

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

14

Pages from-to

e9878

UT code for WoS article

000945363200001

EID of the result in the Scopus database

2-s2.0-85151741635