ArticlePlant physiology2011
Tomato root penetration in soil requires a coaction between ethylene and auxin signaling.
Article in Plant physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 47 citations in OpenAlex.
- A SlERF4-SlTPP1 module enhances drought tolerance in tomato by increasing the root/shoot ratio.Horticulture research · 2026Article
- The SlERF4-9-SlCDF1/3-SlAEC2/SlPIN5 module regulates tomato root morphogenesis.Frontiers in plant science · 2025Article
- How do plant roots overcome physical barriers?Journal of experimental botany · 2022Article
- ROOT PENETRATION INDEX 3, a major quantitative trait locus associated with root system penetrability in Arabidopsis.Journal of experimental botany · 2022Article
- Soil penetration by maize roots is negatively related to ethylene-induced thickening.Plant, cell & environment · 2022Article
- Identification of tomato root growth regulatory genes and transcription factors through comparative transcriptomic profiling of different tissues.Physiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- Ethylene Signaling Facilitates Plant Adaption to Physical Barriers.Frontiers in plant science · 2021Review
- Morphological responses of plant roots to mechanical stress.Annals of botany · 2018Review
- Root Gravitropism Is Regulated by a Crosstalk betweenPlant physiology · 2018Article
- Striking the Right Chord: Signaling Enigma during Root Gravitropism.Frontiers in plant science · 2017Review
- Light modulates the root tip excision induced lateral root formation in tomato.Plant signaling & behavior · 2014Article
- A type III ACC synthase, ACS7, is involved in root gravitropism in Arabidopsis thaliana.Journal of experimental botany · 2013Article
- Chromoplast-specific carotenoid-associated protein appears to be important for enhanced accumulation of carotenoids in hp1 tomato fruits.Plant physiology · 2013Article
- The root as a drill: an ethylene-auxin interaction facilitates root penetration in soil.Plant signaling & behavior · 2012Review
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During seed germination, emerging roots display positive gravitropism and penetrate into the soil for nutrition and anchorage. Tomato (Solanum lycopersicum) seeds germinated in the presence of 1-methylcyclopropene (1-MCP), an inhibitor of ethylene action, failed to insert roots into Soilrite and grew in the air, forming loops. Time-lapse video imaging showed that 1-MCP-grown root tips retained positive gravitropism and made contact with the surface of Soilrite but failed to penetrate into the Soilrite. Time-course studies revealed that the effect of 1-MCP was most prominent when seed imbibition and germination were carried out in the continual presence of 1-MCP. Conversely, 1-MCP was ineffective when applied postgermination after penetration of roots in the Soilrite. Furthermore, treatment with 1-MCP caused a reduction in DR5::β-glucuronidase auxin-reporter activity and modified the expression of SlIAA3 and SlIAA9 transcripts, indicating interference with auxin signaling. The reduced ethylene perception mutant, Never-ripe, displayed decreased ability for root penetration, and the enhanced polar auxin transport mutant, polycotyledon, showed a nearly normal root penetration in the presence of 1-MCP, which could be reversed by application of auxin transport inhibitors. Our results indicate that during tomato seed germination, a coaction between ethylene and auxin is required for root penetration into the soil.
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Registered trials
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.