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Trichomes in Plant Defence, Development and Metabolic Integration Under Environmental Stress
Debdatta Chatterjee1, Madhabi Das1, Sanjib Patra1
1Department of Genetics, University of Calcutta, Kolkata, India.
Plant trichomes, hair-like epidermal structures, act as crucial guards for plant survival. They defend against environmental stress and produce valuable compounds, offering potential for crop improvement and biotechnology.
Area of Science:
- Plant Biology
- Botany
- Biotechnology
Background:
- Trichomes are epidermal outgrowths crucial for plant defense and adaptation.
- They play roles in environmental protection and secondary metabolite production.
Purpose of the Study:
- To review the structural, physiological, and metabolic roles of trichomes in plant survival.
- To explore the regulatory networks governing trichome development.
- To highlight the potential of trichomes in sustainable agriculture and biotechnology.
Main Methods:
- Review of existing literature on trichome biology.
- Analysis of developmental pathways, including transcriptional, hormonal, and epigenetic regulation.
- Examination of glandular and non-glandular trichome functions.
Main Results:
- Trichomes provide physical and chemical defense against herbivores, pathogens, UV radiation, and abiotic stresses.
- Glandular trichomes are key sites for synthesizing high-value secondary metabolites like terpenoids and alkaloids.
- Trichome development involves complex regulatory networks.
Conclusions:
- Trichomes are multifunctional, evolvable units vital for plant adaptation and resilience.
- Exploiting trichomes through genetic and metabolic engineering offers pathways for crop improvement and sustainable biotechnologies.
- Emerging research in omics and engineering promises to unlock further potential.
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