Evidence map›Paper›PMID 34740849›Full record

ArticleMolecular plant2022

Lack of ethylene does not affect reproductive success and synergid cell death in Arabidopsis.

Wenhao Li, Qiyun Li, Mohan Lyu, Zhijuan Wang, Zihan Song, Shangwei Zhong, Hongya Gu, Juan Dong, Thomas Dresselhaus, Sheng Zhong and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Molecular plant, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
6.0field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. The Effect ofJournal of fungi (Basel, Switzerland) · 2025
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  5. Ethylene-independent modulation of root development by ACC via downregulation of WOX5 and group I CLE peptide expression.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

11 authors at 2 institutions in 3 countries.

Wenhao LiState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China.
Qiyun LiState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China.
Mohan LyuState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China.
Zhijuan WangState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China.
Zihan SongState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China.
Shangwei ZhongState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China.
Hongya GuState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China; The National Plant Gene Research Center (Beijing), Beijing 100101, People's Republic of China.
Juan DongThe Waksman Institute of Microbiology, Rutgers the State University of New Jersey, Piscataway, NJ 08854, USA.
Thomas DresselhausCell Biology and Plant Biochemistry, University of Regensburg, 93053 Regensburg, Germany.
Sheng ZhongState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China. Electronic address: shengshengzz@pku.edu.cn.
Li-Jia QuState Key Laboratory for Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences at College of Life Sciences, Peking University, Beijing 100871, People's Republic of China; The National Plant Gene Research Center (Beijing), Beijing 100101, People's Republic of China. Electronic address: qulj@pku.edu.cn.
Peking University · CNRutgers, The State University of New Jersey · US

Funding

Cell polarity, asymmetric cell division and differentiation in plants.R35GM131827 · NIGMS · TEXAS A&M AGRILIFE RESEARCH · PI Juan Dong · 2019 to 2026
$3.2M
Cell polarity and asymmetric division in plantsR01GM109080 · NIGMS · RUTGERS, THE STATE UNIV OF N.J. · PI DONG, JUAN · 2014 to 2018
$1.5M
NIGMS NIH HHS R01 GM109080NIGMS NIH HHS R35 GM131827
6 · The paper itself

Abstract

The signaling pathway of the gaseous hormone ethylene is involved in plant reproduction, growth, development, and stress responses. During reproduction, the two synergid cells of the angiosperm female gametophyte both undergo programmed cell death (PCD)/degeneration but in a different manner: PCD/degeneration of one synergid facilitates pollen tube rupture and thereby the release of sperm cells, while PCD/degeneration of the other synergid blocks supernumerary pollen tubes. Ethylene signaling was postulated to participate in some of the synergid cell functions, such as pollen tube attraction and the induction of PCD/degeneration. However, ethylene-mediated induction of synergid PCD/degeneration and the role of ethylene itself have not been firmly established. Here, we employed the CRISPR/Cas9 technology to knock out the five ethylene-biosynthesis 1-aminocyclopropane-1-carboxylic acid oxidase (ACO) genes and created Arabidopsis mutants free of ethylene production. The ethylene-free mutant plants showed normal triple responses when treated with ethylene rather than 1-aminocyclopropane-1-carboxylic acid, but had increased lateral root density and enlarged petal sizes, which are typical phenotypes of mutants defective in ethylene signaling. Using these ethylene-free plants, we further demonstrated that production of ethylene is not necessarily required to trigger PCD/degeneration of the two synergid cells, but certain components of ethylene signaling including transcription factors ETHYLENE-INSENSITIVE 3 (EIN3) and EIN3-LIKE 1 (EIL1) are necessary for the death of the persistent synergid cell.

Indexed as

ArabidopsisArabidopsis ProteinsApoptosisCell DeathEthylenesPollen TubeReproductionArabidopsis ProteinsEthylenesACCArabidopsisethylenePCDsynergid cellstriple response

Identifiers

PMID34740849
PMCPMC9066556
OpenAlexW3210397447

What OpenQuestion holds

Textmetadata
LicenceTDM
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.