Evidence map›Paper›PMID 31617006›Full record

ArticleMycorrhiza2019

Exogenous abscisic acid and root volatiles increase sporulation of Rhizophagus irregularis DAOM 197198 in asymbiotic and pre-symbiotic status.

Xiaodi Liu, Zengwei Feng, Honghui Zhu, Qing Yao

Abstract read
PubMed Publisher
In one paragraph

Article in Mycorrhiza, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.3field-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

11 citing papers in PubMed, 20 citations in OpenAlex.

  1. Underground Signals: The Ecological Power of Root Volatiles.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
  2. Asymbiotic Growth of Arbuscular Mycorrhizal Fungi.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Molecular Regulation of Arbuscular Mycorrhizal Symbiosis.International journal of molecular sciences · 2022
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. 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.

Xiaodi LiuCollege of Horticulture, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Guangdong Engineering Research Center for Litchi, Guangdong Engineering Research Center for Grass Science, South China Agricultural University, Guangzhou, 510642, China.
Zengwei FengCollege of Horticulture, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Guangdong Engineering Research Center for Litchi, Guangdong Engineering Research Center for Grass Science, South China Agricultural University, Guangzhou, 510642, China.
Honghui ZhuGuangdong Institute of Microbiology Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, China. zhuhh@gdim.cn.
Qing YaoCollege of Horticulture, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Guangdong Engineering Research Center for Litchi, Guangdong Engineering Research Center for Grass Science, South China Agricultural University, Guangzhou, 510642, China. yaoqscau@scau.edu.cn.ORCID http://orcid.org/0000-0003-3449-6166
South China Agricultural University · CNGuangdong Academy of Sciences · CN

Funding

Guangdong Province Science and Technology Innovation Strategy Special Fund 2018B020205001Natural Science Foundation of China 31570395
6 · The paper itself

Abstract

Several studies have demonstrated asymbiotic growth and development of arbuscular mycorrhizal (AM) fungi, although AM fungi are regarded as obligately symbiotic root-inhabiting fungi. Phytohormones, root exudates, and volatiles are important factors regulating the host-AM fungi interaction. However, the effects of phytohormones, root exudates, and volatiles on asymbiotic (without roots present) or pre-symbiotic (with roots present but no colonization) sporulation of AM fungi are unexplored. In this study, we tested the asymbiotic sporulation of Rhizophagus irregularis DAOM 197198 and further investigated the influences of abscisic acid (ABA), the exudates, and volatiles of tomato hairy roots on asymbiotic or pre-symbiotic sporulation in vitro. Results indicated that mother spores asymbiotically and pre-symbiotically produced daughter spores singly or in pairs. Compared with symbiotically produced spores, pre-symbiotically produced spores were significantly smaller (43.1 μm vs. 89.2 μm in diameter). Exogenous ABA applied to mother spores significantly increased the number of daughter spores, and root volatiles also significantly promoted pre-symbiotic sporulation. Our results provide the first evidence that exogenous ABA can promote AM fungal asymbiotic and pre-symbiotic sporulation, which highlights the potential role of phytohormones in AM fungal propagation.

Indexed as

GlomeromycotaMycorrhizaeAbscisic AcidPlant RootsSymbiosisAbscisic AcidAbscisic acidArbuscular mycorrhizal fungiAsymbiotic sporulationPre-symbiotic sporulationRhizophagus irregularis DAOM 197198Root exudates

Identifiers

PMID31617006
OpenAlexW2980706893

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.