Influence of light intensity on glandular trichome density, gene expression and essential oil of menthol mint (<i>Mentha arvensis</i>L.)

Souza, Marco Andre Alves de; Santos, Leandro Azevedo; Brito, Diego M. C.; Rocha, Joecildo Francisco; Castro, Rosane Nora; Fernandes, Mânlio Silvestre; Souza, Sônia Regina de

doi:10.1080/10412905.2015.1099119

Cited by 18 publications

(11 citation statements)

References 22 publications

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“…High peltate trichome density probably plays a defensive role against biotic agents and, along with non‐glandular trichomes, contributes to shelter the plant from damaging radiation and high temperatures . In fact, these plants live in dry and consolidated sandy soils under high light intensity and the dense layer of peltate trichomes may provide better protection by reflecting sunlight and thus minimizing water loss, as proposed by Tozin et al …”

Section: Resultsmentioning

confidence: 99%

Trichome Density in Relation to Volatiles Emission and 1,8‐Cineole Synthase Gene Expression in Thymus albicans Vegetative and Reproductive Organs

Marques

Filipe

Pinto

et al. 2020

Chemistry & Biodiversity

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1,8‐Cineole is the main volatile produced by Thymus albicans Hoffmanns. & Link 1,8‐cineole chemotype. To understand the contribution of distinct plant organs to the high 1,8‐cineole production, trichome morphology and density, as well as emitted volatiles and transcriptional expression of the 1,8‐cineole synthase (CIN) gene were determined separately for T. albicans leaves, bracts, calyx, corolla and inflorescences. Scanning electron microscopy (SEM) and stereoscope microscopy observations showed the highest peltate trichome density in leaves and bracts, significantly distinct from calyx and corolla. T. albicans volatiles were collected by solid phase micro extraction (SPME) and analyzed by gas chromatography‐mass spectrometry (GC/MS) and by GC for component identification and quantification, respectively. Of the 23 components identified, 1,8‐cineole was the dominant volatile (57–93 %) in all T. albicans plant organs. The relative amounts of emitted volatiles clearly separated vegetative from reproductive organs. Gene expression of CIN was assigned to all organs analyzed and was consistent with the relatively high emission of 1,8‐cineole in leaves and bracts. Further studies will be required to analyze monoterpenoid biosynthesis by each type of glandular trichome.

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Section: Resultsmentioning

confidence: 99%

Trichome Density in Relation to Volatiles Emission and 1,8‐Cineole Synthase Gene Expression in Thymus albicans Vegetative and Reproductive Organs

Marques

Filipe

Pinto

et al. 2020

Chemistry & Biodiversity

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“…Moreover, environmental factors, such as temperature, photoperiod, light intensity or soil humidity have direct effects on trichome development in several species, including tomato (Wellso and Hoxie, 1982;Gianfagna et al, 1992;Chien and Sussex, 1996;Souza et al, 2016). Despite the dramatic change between environmental conditions in the glasshouse and the field, the relative differences in TD were conserved between lines (Figure 1a), indicating strong genetic control of trichome development in the selected ILs.…”

Section: The Development Of Leaf Trichomes Is Influenced By Water Avamentioning

confidence: 99%

The ratio of trichomes to stomata is associated with water use efficiency in Solanum lycopersicum (tomato)

et al. 2018

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Trichomes are specialised structures that originate from the aerial epidermis of plants, and play key roles in the interaction between the plant and the environment. In this study we investigated the trichome phenotypes of four lines selected from the Solanum lycopersicum × Solanum pennellii introgression line (IL) population for differences in trichome density, and their impact on plant performance under water-deficit conditions. We performed comparative analyses at morphological and photosynthetic levels of plants grown under well-watered (WW) and also under water-deficit (WD) conditions in the field. Under WD conditions, we observed higher trichome density in ILs 11-3 and 4-1, and lower stomatal size in IL 4-1 compared with plants grown under WW conditions. The intrinsic water use efficiency (WUE ) was higher under WD conditions in IL 11-3, and the plant-level water use efficiency (WUE ) was also higher in IL 11-3 and in M82 for WD plants. The ratio of trichomes to stomata (T/S) was positively correlated with WUE and WUE , indicating an important role for both trichomes and stomata in drought tolerance in tomato, and offering a promising way to select for improved water use efficiency of major crops.

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“…Menthol mint volatiles biosynthesis exclusively occurs in the secretory cells from the capitate and peltate secretory trichomes, as well as genes involved with menthol route synthesis are expressed in these cells, making this a single site where all biochemical reactions in regarding to volatiles synthesis have occurred (McConkey et al 2000, Sharma et al 2003, Croteau et al 2005, Tiwari 2016). Some works have pointed to a positive correlation between the glandular trichomes density and the essential oil yield and content (Gupta et al 2017, Mishra et al 2018, Souza et al 2016. Thus, the extensive research on the cultivation and elucidation of metabolic pathway responsible for essential oil biosynthesis has made substantial contribution in research focusing on trichomes and production of essential oil (Tiwari 2016).…”

Section: Introductionmentioning

confidence: 99%

Productive, metabolic and anatomical parameters of menthol mint are influenced by light intensity

Souza

Braga

Santos

et al. 2020

An. Acad. Bras. Ciênc.

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Th e cultivation of aromatic species to obtain essential oils has great economic importance, presenting an increasing demand from different industrial sectors, especially to menthol mint (Mentha arvensis L.) essential oil, rich in menthol (70-80%). Consortium cultivation has been an important practice in agricultural systems whose land use is necessary, consequently promoting strong competition for light in reduced space. Thus, this study aimed verifying if different light intensities might promote chemical, metabolical and anatomical alterations in menthol mint. Plants were grown in greenhouse at different average of light intensities (137, 254, 406 and 543 µmol photons m -2 s -1 ). Samples were collected 43 days after germination and submitted to following analyses: Gravimetric test, photosynthetic pigments, soluble fractions, enzymatic activity, N-total, trichome density and histochemistry and chemometric test based on essential oil chemical profi le. Fresh mass gain, trichome density, essential oil content and soluble sugars were positively infl uenced by light intensity increase. On the other hand, total-N, NO 3 − -N and pigments content have decreased infl uenced by light intensity increase. In the secretion from the trichomes, phenolic substances were reported, as well as lipophilic ones in the peltate ones. The increase of oxygenated monoterpenes was favored by light intensity decrease.

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Influence of light intensity on glandular trichome density, gene expression and essential oil of menthol mint (Mentha arvensisL.)

Cited by 18 publications

References 22 publications

Trichome Density in Relation to Volatiles Emission and 1,8‐Cineole Synthase Gene Expression in Thymus albicans Vegetative and Reproductive Organs

Trichome Density in Relation to Volatiles Emission and 1,8‐Cineole Synthase Gene Expression in Thymus albicans Vegetative and Reproductive Organs

The ratio of trichomes to stomata is associated with water use efficiency in Solanum lycopersicum (tomato)

Productive, metabolic and anatomical parameters of menthol mint are influenced by light intensity

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