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Tropaeolum majus L. (nasturtium) is a culture popularly known by its medicinal, ornamental and culinary utility. This work aimed to evaluate the interaction between Astylus variegatus (Germar 1824) (Coleoptera: Melyridae) and the nasturtium flowers associated to the weeks of flourishing, in order to conceive the floral mechanims used by the species...
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Essential oil from Tropaeolum majus L. aerial parts, a plant native to North Western Algeria, was obtained by hydrodistillation. The oil volatile components were identified by a combination of gas chromatography/flame ionization detection (GC/FID), GC-mass spectrometry (GC-MS) techniques, and NMR spectroscopy. Nine components representing 92.0 % of...
Chi-Feng Lee, Huan-Ying Chang, Chin-Ling Wang, and Wen-Shyong Chen (2011) A review of Phyllotreta Chevrolat in Taiwan (Coleoptera: Chrysomelidae: Galerucinae: Alticini). Zoological Studies 50(4): 525-533. Species of the genus Phyllotreta Chevrolat in Japan and Taiwan are reviewed. Phyllotreta striolata (Fabricius) is redescribed based on Taiwanese...
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... The number of stamens, carpels, petals and sepals were evaluated in the laboratory. Carpels were evaluated by visualizing the stigma divisions in gynoecium, as described by Silva et al. (2011). The design was completely randomized, with 10 replicates. ...
... Each floral bud had 3 carpels, 5 petals and 5 sepals. These results are in agreement with Silva et al. (2011), which verified the presence of corolla and chalice pentamers and gynoceum with stigma divided into 3 parts, which corresponds to the existence of 3 carpels. ...
... . The overall mean number of stamens in the experiment was 8.23, corroboratingSilva et al. (2011) who observed 8 stamens with different sizes in the floral buds of T. majus, being 4 larger, 3 medium and 1 smaller. ...
The plant Tropaeolum majus, popularly known as nasturtium, presents food, ornamental and medicinal importance. Studies on floral and carpometric characteristics generate basic knowledge for areas of science such as botany, genetics and plant breeding. This work has the objectives of analyzing the effect of combinations of doses of poultry litter on floral structures and the in vitro germination of T. majus pollen grains. From the experimental matrix Plan Puebla III were defined 9 combinations of poultry litter doses incorporated and covered. The design of the experiments was entirely random, varying the replicates number. The number of stamens, petals, sepals and carpels was verified per floral bud in each treatment. The in vitro germination rate of pollen grains was estimated in 5 culture media and 2 germination times, from flower buds randomly collected in the experiment. The overall mean of stamens, sepals, petals and carpels per floral bud was 8.23; 5; 5 and 3, respectively. The combinations of poultry litter doses influenced only the number of stamens. The in vitro germination rate of T. majus pollen grains varied in the culture media. There was no association between the combinations of poultry litter doses and the in vitro germination rate of pollen grains.
... Originally from Brazil, Mexico and Peru, Tropaeolum majus L., Tropaeolaceae, popularly known in Brazil as "capuchinha", "chaguinha" and "nastúrcio", is an herbaceous of showy flowers, simple or folded, with flowering that reaches about 2-3 meters in length and 30-40 cm in height. It is considered an important medicinal, ornamental and edible plant (Silva et al., 2011). ...
Tropaeolum majus L., Tropaeolaceae, popularly known in Brazil as ‘capuchinha’ is widely used due its anti-inflammatory, antiseptic, anti-hypertensive and anti-depressive properties. However, scientific investigations about its effects on the central nervous system are still scarce. This study investigated the central pharmacological actions of the prolonged treatment with a hydroethanolic extract of T. majus in male Wistar rats in the elevated plus maze and hole-board behavioral models. For this, rats were daily treated with distillated water (negative control); diazepam (1 mg/kg) or hydroethanolic extract of T. majus (75, 150 and 300 mg/kg), for 29 days (by gavage) and were submitted to elevated plus maze and hole-board. Animals treated with all hydroethanolic extract of T. majus or diazepam doses increased the percentage of entries in open arms when compared to control group. However, only treatment with diazepam increased the length of time spent in the open arms of the elevated plus maze. No differences between all groups were observed regardless rearing, grooming, stretched-attend postures and defecation rates. In the HB test, in opposite to diazepam, treatment with hydroethanolic extract of T. majus did not interfere in the exploratory activity of rats. The hydroethanolic extract of T. majus promotes anxiolytic-like effects when orally administered in rats.
... Tropaeolum and Arabidopsis genes are functionally replaceable, as had been shown for FAD2 encoding a fatty acid desaturase [20]. Research fields that may particularly benefit from the here-described expression system include those of xyloglucan metabolism [21], oleate biosynthesis [22] and endosymbiosis [23] and plant-insect interaction [24]. Given the health-promoting effects of Tropaeolum majus, including utinary tract protection [25,26], antidiuretic [27] and even antitumor activity [28], conquering this plant for genetic manipulations harbours potential for biotechnological and pharmacological applications. ...
Transient expression systems are valuable tools in molecular biology. Agrobacterial infiltration of leaves is well-established in tobacco, but has led to limited success in the model plant Arabidopsis thaliana. An efficient expression system combining the advantages of Arabidopsis (well-characterised) and the simplicity of leaf infiltration is desirable. Here, I describe Agrobacterium tumefaciens-mediated transformation of Tropaeolummajus (nasturtium, order Brassicales) as a remarkably simple, cheap and highly efficient transient expression system. It provides the Arabidopsis community with a tool to study subcellular localisation, protein-protein interactions and reporter gene activities (e.g. luciferase, β-glucuronidase) in a genetic background that is closely related to their primary model organism. Unlike Arabidopsis, Tropaeolum is capable of engaging in endomycorrhizal associations and is therefore relevant also to symbiosis research. RNAi-based approaches are more likely to succeed than in the distantly-related Nicotiana transformation system. Tropaeolummajus was voted the "medicinal plant of the year 2013". Conquering this plant for genetic manipulations harbours potential for biotechnological and pharmacological applications.
This datasheet on Tropaeolum majus covers Identity, Overview, Distribution, Dispersal, Hosts/Species Affected, Diagnosis, Biology & Ecology, Environmental Requirements, Natural Enemies, Impacts, Uses, Prevention/Control, Further Information.
Tropaeolum pentaphyllum Lam. subsp. megapetalum (Buchenau) Sparre (Tropaeolaceae) is described and illustrated; the subspecies is endemic to Bolivia, but is relatively widespread in montane areas between 1900 and 3100 m. Cultivation and related notes are provided. The presence of thread‐like pollenkitt has been observed amongst the pollen in dehiscing anthers of T. pentaphyllum subsp. megapetalum, T. pentaphyllum subsp. pentaphyllum, T. austropurpureum (J. M. Watson & A. R. Flores) J. M. Watson & A. R. Flores, T. brachyceras Hook. & Arn., T. tricolor Sweet, a proposed hybrid (originating at Kew), T. tricolor × brachyceras and T. majus L., and in herbarium material of T. minus L. and T. speciosum Poepp. & Endl., although viscin‐like threads have never been reported in Tropaeolum before. The likelihood that this is connected with the ornithophilous pollination biology is discussed as is the potential for further research. The distinction of the subspecies is discussed in relation to the other two subspecies. A perspective on the Tropaeolaceae is provided, and a brief history of Tropaeolum outlined. Tropaeolum sect. Chilensia subsect. Chymocarpus (within which T. pentaphyllum is placed) is now validated after previous attempts failed, and a new combination provided.
