Next Article in Journal
Comparative Study of the Effects of Salinity on Growth, Gas Exchange, N Accumulation and Stable Isotope Signatures of Forage Oat (Avena sativa L.) Genotypes
Next Article in Special Issue
Molecular Mechanisms Supporting Rice Germination and Coleoptile Elongation under Low Oxygen
Previous Article in Journal
Assessment of Mineral and Phenolic Profiles and Their Association with the Antioxidant, Cytotoxic Effect, and Antimicrobial Potential of Lycium chinense Miller
Previous Article in Special Issue
The Seedlings of Different Japonica Rice Varieties Exhibit Differ Physiological Properties to Modulate Plant Survival Rates under Submergence Stress
Open AccessArticle

Ethylene Differentially Modulates Hypoxia Responses and Tolerance across Solanum Species

Plant Ecophysiology, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
*
Authors to whom correspondence should be addressed.
Plants 2020, 9(8), 1022; https://doi.org/10.3390/plants9081022
Received: 24 July 2020 / Revised: 10 August 2020 / Accepted: 10 August 2020 / Published: 13 August 2020
(This article belongs to the Special Issue Plant Responses to Hypoxia)
The increasing occurrence of floods hinders agricultural crop production and threatens global food security. The majority of vegetable crops are highly sensitive to flooding and it is unclear how these plants use flooding signals to acclimate to impending oxygen deprivation (hypoxia). Previous research has shown that the early flooding signal ethylene augments hypoxia responses and improves survival in Arabidopsis. To unravel how cultivated and wild Solanum species integrate ethylene signaling to control subsequent hypoxia acclimation, we studied the transcript levels of a selection of marker genes, whose upregulation is indicative of ethylene-mediated hypoxia acclimation in Arabidopsis. Our results suggest that ethylene-mediated hypoxia acclimation is conserved in both shoots and roots of the wild Solanum species bittersweet (Solanum dulcamara) and a waterlogging-tolerant potato (Solanum tuberosum) cultivar. However, ethylene did not enhance the transcriptional hypoxia response in roots of a waterlogging-sensitive potato cultivar, suggesting that waterlogging tolerance in potato could depend on ethylene-controlled hypoxia responses in the roots. Finally, we show that ethylene rarely enhances hypoxia-adaptive genes and does not improve hypoxia survival in tomato (Solanum lycopersicum). We conclude that analyzing genes indicative of ethylene-mediated hypoxia acclimation is a promising approach to identifying key signaling cascades that confer flooding tolerance in crops. View Full-Text
Keywords: ethylene; flooding; hypoxia; phytoglobin; VII Ethylene Response Factor; PRT6 N-degron pathway of proteolysis; Solanum tuberosum; Solanum lycopersicum; Solanum dulcamara ethylene; flooding; hypoxia; phytoglobin; VII Ethylene Response Factor; PRT6 N-degron pathway of proteolysis; Solanum tuberosum; Solanum lycopersicum; Solanum dulcamara
Show Figures

Figure 1

MDPI and ACS Style

Hartman, S.; van Dongen, N.; Renneberg, D.M.; Welschen-Evertman, R.A.; Kociemba, J.; Sasidharan, R.; Voesenek, L.A. Ethylene Differentially Modulates Hypoxia Responses and Tolerance across Solanum Species. Plants 2020, 9, 1022.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop