Evidence map›Paper›PMID 25375172›Full record

ArticlePloS one2014

Rapid recovery of cyanobacterial pigments in desiccated biological soil crusts following addition of water.

Raeid M M Abed, Lubos Polerecky, Amal Al-Habsi, Janina Oetjen, Marc Strous, Dirk de Beer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
9.6field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 36 citations in OpenAlex.

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  8. On the move: sloths and their epibionts as model mobile ecosystems.Biological reviews of the Cambridge Philosophical Society · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 3 countries.

Raeid M M AbedSultan Qaboos University, College of Science, Biology Department, Al Khoud, Sultanate of Oman.
Lubos PolereckyMax-Planck Institute for Marine Microbiology, Bremen, Germany.
Amal Al-HabsiSultan Qaboos University, College of Science, Biology Department, Al Khoud, Sultanate of Oman.
Janina OetjenMALDI Imaging Laboratory, University of Bremen, Bremen, Germany.
Marc StrousMax-Planck Institute for Marine Microbiology, Bremen, Germany; Department of Geoscience, University of Calgary, Calgary, Alberta, Canada.
Dirk de BeerMax-Planck Institute for Marine Microbiology, Bremen, Germany.
Max Planck Institute for Marine Microbiology · DESultan Qaboos University · OMUniversity of Bremen · DEUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We examined soil surface colour change to green and hydrotaxis following addition of water to biological soil crusts using pigment extraction, hyperspectral imaging, microsensors and 13C labeling experiments coupled to matrix-assisted laser desorption and ionization time of flight-mass spectrometry (MALD-TOF MS). The topsoil colour turned green in less than 5 minutes following water addition. The concentrations of chlorophyll a (Chl a), scytonemin and echinenon rapidly increased in the top <1 mm layer while in the deeper layer, their concentrations remained low. Hyperspectral imaging showed that, in both wet and dehydrated crusts, cyanobacteria formed a layer at a depth of 0.2-0.4 mm and this layer did not move upward after wetting. 13C labeling experiments and MALDI TOF analysis showed that Chl a was already present in the desiccated crusts and de novo synthesis of this molecule started only after 2 days of wetting due to growth of cyanobacteria. Microsensor measurements showed that photosynthetic activity increased concomitantly with the increase of Chl a, and reached a maximum net rate of 92 µmol m-2 h-1 approximately 2 hours after wetting. We conclude that the colour change of soil crusts to green upon water addition was not due to hydrotaxis but rather to the quick recovery and reassembly of pigments. Cyanobacteria in crusts can maintain their photosynthetic apparatus intact even under prolonged periods of desiccation with the ability to resume their photosynthetic activities within minutes after wetting.

Indexed as

DesiccationSoil MicrobiologyCyanobacteriaPigments, BiologicalSoilPigments, BiologicalSoil

Identifiers

PMID25375172
PMCPMC4223047
OpenAlexW2152992418

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.