ArticlePlant physiology2021
Host-produced ethylene is required for marked cell expansion and endoreduplication in dodder search hyphae.
Article in Plant physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 21 citations in OpenAlex.
- The role of hormones in parasitic plant infection.Plant & cell physiology · 2026Review
- Physiological and Biochemical Responses ofLife (Basel, Switzerland) · 2025Article
- Current understanding of the role of the cell wall in Cuscuta parasitism.Plant biology (Stuttgart, Germany) · 2025Review
- A unique phytochrome B gene in Cuscuta campestris and its responses during the initial stage of haustorium formation.Journal of plant research · 2025Article
- Dual RNA-seq reveals distinct families of co-regulated and structurally conserved effectors in Botrytis cinerea infection of Arabidopsis thaliana.BMC biology · 2024Article
- Parasitic plants are one step ahead: Cuscuta responds transcriptionally to different hosts.Plant physiology · 2024Article
- A host-free transcriptome for haustoriogenesis in Cuscuta campestris: Signature gene expression identifies markers of successive development stages.Physiologia plantarum · 2022Article
- Regulatory Modules Involved in the Degradation and Modification of Host Cell Walls DuringFrontiers in plant science · 2022Article
- Beginnings of a plant parasite: early development of Rafflesia consueloae inside its Tetrastigma host.Planta · 2021Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The genus Cuscuta comprises stem holoparasitic plant species with wide geographic distribution. Cuscuta spp. obtain water, nutrients, proteins, and mRNA from their host plants via a parasitic organ called the haustorium. As the haustorium penetrates into the host tissue, search hyphae elongate within the host tissue and finally connect with the host's vascular system. Invasion by Cuscuta spp. evokes various reactions within the host plant's tissues. Here, we show that, when Arabidopsis (Arabidopsis thaliana) is invaded by Cuscuta campestris, ethylene biosynthesis by the host plant promotes elongation of the parasite's search hyphae. The expression of genes encoding 1-aminocylclopropane-1-carboxylic acid (ACC) synthases, ACC SYNTHASE2 (AtACS2) and ACC SYNTHASE6 (AtACS6), was activated in the stem of Arabidopsis plants upon invasion by C. campestris. When the ethylene-deficient Arabidopsis acs octuple mutant was invaded by C. campestris, cell elongation and endoreduplication of the search hyphae were significantly reduced, and the inhibition of search hyphae growth was complemented by exogenous application of ACC. In contrast, in the C. campestris-infected Arabidopsis ethylene-insensitive mutant etr1-3, no growth inhibition of search hyphae was observed, indicating that ETHYLENE RESPONSE1-mediated ethylene signaling in the host plant is not essential for parasitism by C. campestris. Overall, our results suggest that C. campestris recognizes host-produced ethylene as a stimulatory signal for successful invasion.
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