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July 12, 2026Microbial EcologyOpen Access

Insights into the Mechanism Underlying the Symbiosis between Seagrass and a Lulworthiaceae Fungus

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Authors

XWXiao WangJCJiawei ChenYTYang Tang

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Overview

Randomized trial validates plant growth promotion in seagrass via fungal IAA production, indicating significant interactions.

Key Points

  • This research investigates the symbiotic relationship between seagrass and Lulworthiaceae fungi, focusing on IAA production and its effects on plant growth.
  • Combined UHPLC-MS/MS, transcriptomic analysis, and plant growth assays with Halophila ovalis and Halophilomyces hongkongensis.
  • Upregulated IAA biosynthesis genes analyzed in seagrass roots versus rhizosphere sediments.
  • Evaluation of fungal culture filtrates on Arabidopsis thaliana for plant growth promotion.
  • H. hongkongensis was confirmed to produce IAA, significantly upregulating related biosynthesis genes in seagrass roots.
  • Fungal culture filtrates promoted Arabidopsis shoot and lateral root growth, strongly correlating with IAA production.
  • Identified pathways include tryptophan metabolism, starch/sucrose metabolism, and DNA replication.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a532f464f7abc118adecef7https://doi.org/10.1007/s00248-026-02808-0
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Halophilomyces hongkongensis, a Novel Species and Genus in the Lulworthiaceae with Antibacterial Potential, Colonizing the Roots and Rhizomes of the Seagrass Halophila ovalis2024 · 4 citations
  2. 2Novel epiphytic root-fungus symbiosis in the Indo-Pacific seagrass Thalassodendron ciliatum from the Red Sea2024 · 4 citations
  3. 3From seagrass roots to saline soils: discovery of two new genera in Lulworthiales (Sordariomycetes) from osmotically stressed habitats2025 · 1 citations
  4. 4Influence of seagrass traits on the diversity of endophytic fungi2024 · 1 citations
  5. 5The endophytic fungus Serendipita indica alters auxin distribution in Arabidopsis thaliana roots through alteration of auxin transport and conjugation to promote plant growth2024