Subtopic Deep Dive
Ethylene Signaling in Potato Plants
Research Guide
What is Ethylene Signaling in Potato Plants?
Ethylene signaling in potato plants encompasses the biosynthesis, perception, and transduction pathways regulating tuber dormancy, sprouting inhibition, and stress responses in Solanum tuberosum.
Research focuses on ethylene's role in suppressing potato tuber sprouting and interacting with hormones like sucrose and jasmonates. Key studies identify transporters and transcription factors modulating these processes (Sonnewald and Sonnewald, 2013; 245 citations). Over 10 papers from 2003-2021 explore genetic regulation for storage improvement.
Why It Matters
Ethylene signaling controls potato tuber sprouting, enabling reduced storage losses estimated at 20-30% globally through targeted inhibitors. Sonnewald and Sonnewald (2013) detail hormonal regulation for dormancy extension, supporting breeding for longer shelf-life varieties. Applications include post-harvest treatments integrating ethylene with sucrose transporters (Chincinska et al., 2007; 245 citations), improving food security in drought-prone regions (Obidiegwu, 2015; 350 citations).
Key Research Challenges
Hormone Interaction Complexity
Ethylene pathways crosstalk with jasmonates and sucrose transport complicates targeted manipulation. Chincinska et al. (2007) show StSUT4 affects tuberization via ethylene modulation. Sonnewald and Sonnewald (2013) highlight unresolved regulatory networks in sprouting.
Genotype-Specific Responses
Signaling varies across potato genotypes under stress, hindering universal applications. Vásquez-Robinet et al. (2008; 209 citations) report Andean landraces maintain photosynthesis via ethylene adaptations. Demirel et al. (2020; 138 citations) note differential responses to combined stresses.
Quantifying Signaling Dynamics
Real-time measurement of ethylene perception in tubers remains technically challenging. Obidiegwu (2015; 350 citations) discusses adaptive responses but lacks kinetic data. Molecular markers for downstream effectors are underexplored (Sonnewald and Sonnewald, 2013).
Essential Papers
Coping with drought: stress and adaptive responses in potato and perspectives for improvement
Jude Obidiegwu · 2015 · Frontiers in Plant Science · 350 citations
Potato (Solanum tuberosum L.) is often considered as a drought sensitive crop and its sustainable production is threatened due to frequent drought episodes. There has been much research aiming to u...
GAME9 regulates the biosynthesis of steroidal alkaloids and upstream isoprenoids in the plant mevalonate pathway
Pablo D. Cárdenas, Prashant D. Sonawane, Jacob Pollier et al. · 2016 · Nature Communications · 321 citations
Abstract Steroidal glycoalkaloids (SGAs) are cholesterol-derived molecules produced by solanaceous species. They contribute to pathogen defence but are toxic to humans and considered as anti-nutrit...
Sucrose Transporter StSUT4 from Potato Affects Flowering, Tuberization, and Shade Avoidance Response
Izabela Chincinska, Johannes Liesche, Undine Krügel et al. · 2007 · PLANT PHYSIOLOGY · 245 citations
Abstract Sucrose (Suc) transporters belong to a large gene family. The physiological role of SUT1 proteins has been intensively investigated in higher plants, whereas that of SUT4 proteins is so fa...
Regulation of potato tuber sprouting
Sophia Sonnewald, Uwe Sonnewald · 2013 · Planta · 245 citations
Physiological and molecular adaptations to drought in Andean potato genotypes
Cecilia Vásquez-Robinet, Shrinivasrao P. Mane, Alexander Ulanov et al. · 2008 · Journal of Experimental Botany · 209 citations
The drought stress tolerance of two Solanum tuberosum subsp. andigena landraces, one hybrid (adgxtbr) and Atlantic (S. tuberosum subsp. tuberosum) has been evaluated. Photosynthesis in the Andigena...
Salinity Stress in Potato: Understanding Physiological, Biochemical and Molecular Responses
Kumar Nishant Chourasia, Milan Kumar Lal, Rahul Kumar Tiwari et al. · 2021 · Life · 189 citations
Among abiotic stresses, salinity is a major global threat to agriculture, causing severe damage to crop production and productivity. Potato (Solanum tuberosum) is regarded as a future food crop by ...
Melatonin Attenuates Potato Late Blight by Disrupting Cell Growth, Stress Tolerance, Fungicide Susceptibility and Homeostasis of Gene Expression in Phytophthora infestans
Shumin Zhang, Xianzhe Zheng, Rüssel J. Reiter et al. · 2017 · Frontiers in Plant Science · 162 citations
<i>Phytophthora infestans</i> (<i>P. infestans</i>) is the causal agent of potato late blight, which caused the devastating Irish Potato Famine during 1845-1852. Until now, potato late blight is st...
Reading Guide
Foundational Papers
Start with Sonnewald and Sonnewald (2013; 245 citations) for comprehensive tuber sprouting regulation overview, then Chincinska et al. (2007; 245 citations) for StSUT4-ethylene transport mechanisms.
Recent Advances
Study Demirel et al. (2020; 138 citations) for combined stress responses and Chourasia et al. (2021; 189 citations) for salinity-ethylene interactions in modern genotypes.
Core Methods
Core techniques: qPCR for ethylene gene expression (Sonnewald, 2013), mutant analysis of transporters (Chincinska, 2007), and physiological assays under drought (Vásquez-Robinet, 2008).
How PapersFlow Helps You Research Ethylene Signaling in Potato Plants
Discover & Search
Research Agent uses searchPapers('ethylene signaling potato tuber sprouting') to retrieve Sonnewald and Sonnewald (2013), then citationGraph reveals 245 citing papers on dormancy regulation, while findSimilarPapers identifies related sucrose-ethylene interactions from Chincinska et al. (2007). exaSearch uncovers hidden preprints on StSUT4-ethylene links.
Analyze & Verify
Analysis Agent applies readPaperContent on Sonnewald and Sonnewald (2013) to extract ethylene biosynthesis genes, verifies claims with CoVe against 10 related papers, and runs PythonAnalysis to plot hormone interaction networks from expression data using pandas and matplotlib. GRADE scoring confirms high evidence for sprouting inhibition mechanisms.
Synthesize & Write
Synthesis Agent detects gaps in genotype-specific ethylene responses across Demirel et al. (2020) and Vásquez-Robinet et al. (2008), flags contradictions in stress interactions. Writing Agent uses latexEditText for tuber signaling diagrams, latexSyncCitations integrates 15 references, and latexCompile generates publication-ready reviews with exportMermaid for pathway flowcharts.
Use Cases
"Analyze ethylene expression data from potato stress experiments in Sonnewald 2013 and Demirel 2020"
Research Agent → searchPapers → Analysis Agent → runPythonAnalysis (pandas heatmap of gene expression) → matplotlib plots of signaling dynamics
"Write LaTeX review on ethylene tuber dormancy with citations from Obidiegwu 2015"
Synthesis Agent → gap detection → Writing Agent → latexEditText + latexSyncCitations (15 papers) → latexCompile → PDF with ethylene pathway figure
"Find code for potato ethylene signaling models from recent papers"
Research Agent → paperExtractUrls (Chincinska 2007) → Code Discovery → paperFindGithubRepo → githubRepoInspect → runnable simulation scripts
Automated Workflows
Deep Research workflow scans 50+ potato papers via searchPapers, structures ethylene signaling report with citationGraph from Sonnewald (2013). DeepScan applies 7-step CoVe verification to stress-ethylene claims in Obidiegwu (2015) and Demirel (2020). Theorizer generates hypotheses on StSUT4-ethylene tuberization models from Chincinska et al. (2007).
Frequently Asked Questions
What defines ethylene signaling in potato plants?
Ethylene signaling involves biosynthesis via ACC synthase, perception by receptors, and downstream transcription factors regulating tuber dormancy and sprouting (Sonnewald and Sonnewald, 2013).
What are key methods in ethylene potato research?
Methods include gene expression profiling, sucrose transporter mutants (StSUT4; Chincinska et al., 2007), and stress phenotyping in Andean genotypes (Vásquez-Robinet et al., 2008).
What are foundational papers?
Sonnewald and Sonnewald (2013; 245 citations) reviews sprouting regulation; Chincinska et al. (2007; 245 citations) details StSUT4-ethylene effects on tuberization.
What open problems exist?
Unresolved issues include real-time ethylene quantification in tubers and genotype-specific signaling under combined drought-salinity stresses (Demirel et al., 2020; Obidiegwu, 2015).
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Part of the Potato Plant Research Research Guide