A study on geranium (Pelargonium graveolens L′Herit ex Aiton) cultivars’ productivity and economics as intervening by diverse climatic conditions of the western peninsular region of India

Lothe, Nikil Bhashkar; Verma, Rajesh Kumar

doi:10.1016/j.indcrop.2023.116882

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…However, the growth and oil yield of the P. graveolens cultivar encounter substantial challenges during the rainy season in north India due to fungal stress, which hinder the global demand for GEO. Therefore, it is imperative for biotechnological approach to address fungal infection, ensuring the availability of propagules after the rainy season for further propagation (Lothe and Verma, 2023; Mazeed et al, 2023; Varshney et al, 2011). In this study, P. graveolens harboring 35S:: Thchit42 lines were developed for fungal resistance to maintain propagation rate and enhance yield.…”

Section: Discussionmentioning

confidence: 99%

“…More specifically, 70–80% of plant diseases are attributable to fungi threatening worldwide agriculture, influencing crop production, and dissatisfying commercial demand (Stukenbrock and Gurr, 2023). Geranium ( Pelargonium graveolens L ′ Her ex Aiton ) is an erect, branched herb with solid rose-scented aroma (Singh et al, 2021; Lothe and Verma, 2023). The Geranium is world-known valuable crop inherited from Madagascar, Egypt, “Reunion,” South Africa, and Morocco (Rao, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…The secondary metabolites in Geranium Essential Oil (GEO) are commercially crucial compounds in high demand in the fragrance, pharmacology, and aromatherapy industries (Singh et al, 2021). Additionally, GEO is the world’s top 20 essential oil, rich source of citronellol and geraniol, which are highly valuable alcohols found in P. graveolens essential oil (Lothe and Verma, 2023; Bergman et al, 2020). Indeed, India produces only 20 tons/year of GEO and 661.38 US tons produced globally, whereas the national demand for geranium essential oil is ∼200 tons /year, satisfied by imports from other countries (Lothe and Verma, 2023; Mazeed et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, GEO is the world’s top 20 essential oil, rich source of citronellol and geraniol, which are highly valuable alcohols found in P. graveolens essential oil (Lothe and Verma, 2023; Bergman et al, 2020). Indeed, India produces only 20 tons/year of GEO and 661.38 US tons produced globally, whereas the national demand for geranium essential oil is ∼200 tons /year, satisfied by imports from other countries (Lothe and Verma, 2023; Mazeed et al, 2023). Future market perception expects that global market demand for aromatherapy will grow by 7.7% annually from 2016 to 2026 to obtain over $8 billion in 2026 (https://www.cbi.eu/market-information/natural-ingredients-cosmetics/rose-geranium-oil).…”

Section: Introductionmentioning

confidence: 99%

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Bridging fungal resistance and plant growth through constitutive overexpression ofThchit42gene inPelargonium graveolens

Khatoon,

Warsi,

Singh

et al. 2024

Preprint

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Pelargonium graveolens essential oil possesses significant attributes, known for perfumery and aromatherapy. However, optimal yield and propagation are predominantly hindered by biotic stress. All biotechnological approaches have yet to prove effective in addressing fungal resistance. The current study developed transgenic geranium bridging molecular mechanism of fungal resistance and plant growth by introducing cassette 35S::Thchit42. Furthermore, 120 independently putative transformed explants were regenerated on kanamycin fortified medium. Primarily transgenic lines were demonstrated peak pathogenicity and antifungal activity against formidable Colletotrichum gloeosporioides and Fusarium oxysporum. Additionally, phenotypic analysis revealed ~2fold increase in leaf size and ~2.1fold enhanced oil content. To elucidate the molecular mechanisms for genotypic cause, De novo transcriptional profiles were analyzed to indicate that the auxin-regulated longifolia gene is accountable for augmentation in leaf size, and ZF RICESLEEPER attributes growth upregulation. Collectively, data provides valuable insights into unravelling the mechanism of Thchit42-mediated crosstalk between morphological and chemical alteration in transgenic plants. This knowledge might create novel opportunities to cultivate fungal-resistant geranium throughout all seasons to fulfil demand.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%