Evidence map›Paper›PMID 27325664›Full record

ArticlePlant physiology2016

The Relationship of Triacylglycerol and Starch Accumulation to Carbon and Energy Flows during Nutrient Deprivation in Chlamydomonas reinhardtii.

Matthew T Juergens, Bradley Disbrow, Yair Shachar-Hill

Open access · greenAbstract read
In one paragraph

Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

30 citing papers in PubMed, 54 citations in OpenAlex.

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  11. Differences in Glycerolipid Response ofFrontiers in plant science · 2022
    Article
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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

3 authors at 1 institution in 1 country.

Matthew T JuergensDepartment of Plant Biology (M.T.J., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J.), Michigan State University, East Lansing, Michigan 48824.ORCID 0000-0001-5136-9025
Bradley DisbrowDepartment of Plant Biology (M.T.J., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J.), Michigan State University, East Lansing, Michigan 48824.
Yair Shachar-HillDepartment of Plant Biology (M.T.J., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J.), Michigan State University, East Lansing, Michigan 48824 yairhill@msu.edu.ORCID 0000-0001-5136-9025
Michigan State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Because of the potential importance of algae for green biotechnology, considerable effort has been invested in understanding their responses to nitrogen deprivation. The most frequently invoked reasons proposed for the accumulation of high cellular levels of triacylglycerol (TAG) and starch are variants of what may be termed the "overflow hypothesis." According to this, growth inhibition results in the rate of photosynthetic energy and/or carbon input exceeding cellular needs; the excess input is directed into the accumulation of TAG and/or starch to prevent damage. This study was aimed at providing a quantitative dataset and analysis of the main energy and carbon flows before and during nitrogen deprivation in a model system to assess alternative explanations. Cellular growth, biomass, starch, and lipid levels as well as several measures of photosynthetic function were recorded for cells of Chlamydomonas reinhardtii cultured under nine different autotrophic, mixotrophic, and heterotrophic conditions during nutrient-replete growth and for the first 4 d of nitrogen deprivation. The results of a (13)C labeling time course indicated that in mixotrophic culture, starch is predominantly made from CO2 and fatty acid synthesis is largely supplied by exogenous acetate, with considerable turnover of membrane lipids, so that total lipid rather than TAG is the appropriate measure of product accumulation. Heterotrophic cultures accumulated TAG and starch during N deprivation, showing that these are not dependent on photosynthesis. We conclude that the overflow hypothesis is insufficient and suggest that storage may be a more universally important reason for carbon compound accumulation during nutrient deprivation.

Indexed as

Energy MetabolismAutotrophic ProcessesBiomassCarbonChlamydomonas reinhardtiiHeterotrophic ProcessesNitrogenPhotosynthesisStarchTriglyceridesCarbonNitrogenStarchTriglycerides

Identifiers

PMID27325664
PMCPMC4972295
OpenAlexW2461765683

What OpenQuestion holds

Textmetadata
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.