Cited by 15Plant Stress Responses and TolerancePlant Molecular Biology ResearchPlant-Microbe Interactions and Immunity

Involvement of auxin-mediated cqexpa50 contributes to salt tolerance in quinoa (chenopodium quinoa) by interaction with auxin pathway genes

Open access
Sun, Wenjun, Yao, Min, Wang, Zhen, Chen, Ying, Zhan, Junyi, Yan, Jun, Jiang, Shuangqing, Jian, Shanshan +6 more·2022·International Journal of Molecular Sciences

Abstract

Soil salinization is a global problem that limits crop yields and threatens agricultural development. Auxin-induced expansins contribute to plant salt tolerance through cell wall loosening. However, how auxins and expansins contribute to the adaptation of the halophyte quinoa (Chenopodium quinoa) to salt stress has not yet been reported. Here, auxin was found to contribute to the salt tolerance of quinoa by promoting the accumulation of photosynthetic pigments under salt stress, maintaining enzymatic and nonenzymatic antioxidant systems and scavenging excess reactive oxygen species (ROS). The Chenopodium quinoa expansin (Cqexpansin) family and the auxin pathway gene family (Chenopodium quinoa auxin response factor (CqARF), Chenopodium quinoa auxin/indoleacetic acid (CqAux/IAA), Chenopodium quinoa Gretchen Hagen 3 (CqGH3) and Chenopodium quinoa small auxin upregulated RNA (CqSAUR)) were identified from the quinoa genome. Combined expression profiling identified Chenopodium quinoa α-expansin 50 (CqEXPA50) as being involved in auxin-mediated salt tolerance. CqEXPA50 enhanced salt tolerance in quinoa seedlings was revealed by transient overexpression and physiological and biochemical analyses. Furthermore, the auxin pathway and salt stress-related genes regulated by CqEXPA50 were identified. The interaction of CqEXPA50 with these proteins was demonstrated by bimolecular fluorescence complementation (BIFC). The proteins that interact with CqEXPA50 were also found to improve salt tolerance. In conclusion, this study identified some genes potentially involved in the salt tolerance regulatory network of quinoa, providing new insights into salt tolerance.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3390/ijms23158480

Cites

86 of 86 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Manipulating the CqEXPA50 gene in quinoa enhances salt tolerance by improving cell expansion and osmotic adjustment.

    “Additionally, the role of auxin in salt tolerance has been explored through the CqEXPA50 gene identified in quinoa. Manipulating this gene, which is involved in auxin-mediated responses, enhances salt tolerance by improving cell expansion and osmotic adjustment (Sun et al., 2022; Zhang et al., 2021).”

    From Emerging applications of gene editing technologies for the development of climate-resilient crops (2025) · cites this paper as Sun et al., 2022

    The Discussion (§3.2; page unavailable) reports that transient CqEXPA50 overexpression enhanced salt tolerance in quinoa and links it to auxin-mediated responses. It attributes the improvement to photosynthetic pigment accumulation and antioxidant systems, not demonstrated improvements in cell expansion or osmotic adjustment. Its discussion of cell-wall extensibility concerns expansins generally, rather than a measured mechanism for CqEXPA50. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

1 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Sun, W., Yao, M., Wang, Z., Chen, Y., Zhan, J., Yan, J., Jiang, S., Jian, S., Chen, H., Bu, T., Tang, Z., Li, Q., Zhao, H., & Wu, Q.
Affiliations
  • Sichuan Agricultural University (CN)
  • Nanjing Agricultural University (CN)
  • Chengdu University (CN)
Corresponding author
Chen, Hui
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2022-07-30
Volume
23
Issue
15
Pages
8480
ISSN
1422-0067 (ISSN-L)
OpenAlex
W4289175731
Cited by
15
References
86
Citations by year
2026: 1 · 2025: 5 · 2024: 7 · 2023: 2
FWCI
2.20
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Sichuan Province Science and Technology Support Program (2021YFH0086, 2021CC009)
  • Ministry of Agriculture and Rural Affairs, Chengdu University (2021YFH0086, 2021CC009)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant-Microbe Interactions and Immunity
Keywords
quinoa, salt tolerance, auxin signaling, expansin, auxin response factor, reactive oxygen species scavenging, antioxidant enzymes, photosynthetic pigments, cell wall loosening, halophytes, protein-protein interaction, salt stress
MeSH terms
Salt Stress, Indoleacetic Acids, Chenopodium quinoa, Salt Tolerance, Salt-Tolerant Plants

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review