Evidence map›Paper›PMID 25301821›Full record

ArticleAoB PLANTS2014

The ubiquitin-proteasome pathway protects Chlamydomonas reinhardtii against selenite toxicity, but is impaired as reactive oxygen species accumulate.

Patrick Vallentine, Chiu-Yueh Hung, Jiahua Xie, Doug Van Hoewyk

Open access · goldAbstract read
In one paragraph

Article in AoB PLANTS, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 47 citations in OpenAlex.

  1. An atlas of plant selenium metabolism.The New phytologist · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. From Selenium Absorption to Selenoprotein Degradation.Biological trace element research · 2019
    Review
  9. Review
  10. Target of Rapamycin Inhibition inThe Plant cell · 2018
    Article
  11. Article
  12. Article
  13. Article
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

4 authors at 2 institutions in 1 country.

Patrick VallentineDepartment of Biology, Coastal Carolina University, Conway, SC 29526, USA.
Chiu-Yueh HungDepartment of Pharmaceutical Sciences, BRITE Institute, North Carolina Central University, Durham, NC 27707, USA.
Jiahua XieDepartment of Pharmaceutical Sciences, BRITE Institute, North Carolina Central University, Durham, NC 27707, USA.
Doug Van HoewykDepartment of Biology, Coastal Carolina University, Conway, SC 29526, USA dougvh@coastal.edu.
North Carolina Central University · USCoastal Carolina University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ubiquitin-proteasome pathway (UPP) coordinates a myriad of physiological processes in higher plants, including abiotic stress responses, but it is less well characterized in algal species. In this study, the green alga Chlamydomonas reinhardtii was used to gain insights into the role of the UPP during moderate and severe selenite stress at three different time points. The data indicate that activity of the UPP in response to selenium (Se) stress was both time and dose dependent. Moderate selenite stress increased proteasome activity, protein ubiquitination and the proteasomal removal of malformed selenoproteins. However, severe Se stress caused by prolonged selenite treatment or high selenite concentration decreased proteasome activity, inhibited protein ubiquitination and prevented the proteasomal removal of selenoproteins. The UPP impairment during severe Se stress was associated with the observed accumulation of reactive oxygen species (ROS), including mitochondrial superoxide. Additionally, proteasomal inhibition decreased the concentration of chlorophyll in cultures challenged with Se. Therefore, although the UPP protects Chlamydomonas against Se stress, severe oxidative stress induced by selenite toxicity likely hinders the UPP's capacity to mediate a stress response. The possibility that stress tolerance in plants is dependent upon optimal UPP activity and maintenance is discussed.

Indexed as

Chlamydomonasmalformed selenoproteinmitochondrial superoxideproteasomereactive oxygen speciesseleniumubiquitin

Identifiers

PMID25301821
PMCPMC4231294
OpenAlexW2125558642

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.