Floral biology of Tropaeolum majus L. (Tropaeolaceae) and its relation with Astylus variegatus activity (Germar 1824) (Coleoptera: Melyridae)

Silva, Maria Emilia P.F.; Mussury, Rosilda Mara; Vieira, Maria do Carmo; Alves, Valter Vieira; Pereira, Zefa Valdevina; Scalon, Silvana de Paula Quintão

doi:10.1590/s0001-37652011005000046

Cited by 10 publications

(9 citation statements)

References 4 publications

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“…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.…”

Section: The Influence Of Poultry Litter Doses In T Majus Floral Strsupporting

confidence: 90%

“…The analysis of variance only revealed statistical difference for the characteristic number of stamens in T. majus (Table 3). The overall mean number of stamens in the experiment was 8.23, corroborating Silva 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. Note.…”

Section: The Influence Of Poultry Litter Doses In T Majus Floral Strsupporting

confidence: 87%

“…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.…”

Section: Experimental Designmentioning

confidence: 99%

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Floral Biology and in vitro Germination of Nasturtium Pollen Grains Grown With Poultry Litter

Zanetti¹,

Davide²,

Vieira³

et al. 2019

JAS

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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.

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Section: The Influence Of Poultry Litter Doses In T Majus Floral Strsupporting

confidence: 90%

Section: The Influence Of Poultry Litter Doses In T Majus Floral Strsupporting

confidence: 87%

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Floral Biology and in vitro Germination of Nasturtium Pollen Grains Grown With Poultry Litter

Zanetti¹,

Davide²,

Vieira³

et al. 2019

JAS

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“… 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 anti-tumor activity [28], conquering this plant for genetic manipulations harbours potential for biotechnological and pharmacological applications.…”

Section: Discussionmentioning

confidence: 99%

Tropaeolum Tops Tobacco – Simple and Efficient Transgene Expression in the Order Brassicales

Pitzschke

2013

PLoS ONE

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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 Tropaeolum majus (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. Tropaeolum majus was voted the “medicinal plant of the year 2013”. Conquering this plant for genetic manipulations harbours potential for biotechnological and pharmacological applications.

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“…A No comment is provided on the pollen in other species where pollination biology has been studied (e.g. T. majus inSilva et al, 2011; T. pentaphyllum [subsp. pentaphyllum] inFabbri & Valla, 1998), their studies concentrating on the pollinators.…”

mentioning

confidence: 99%

1027. TROPAEOLUM PENTAPHYLLUM subsp. MEGAPETALUM: Tropaeolaceae

Hind¹,

Moore²,

King³

2022

Curtis's Botanical Magazine

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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.On a cold, very wet, and cloudy late afternoon in early November, at the Royal Botanic Gardens, Kew, the first author first met the subject of the current plate, Tropaeolum pentaphyllum Lam. subsp. megapetalum (Buchenau) Sparre (Tropaeolaceae). In a large pot, at the northern end of the Davies Alpine House, sprawling over a bamboo trellis, were the unmistakable five-partite leaves of this Bolivian climber. Dotted throughout the upper half of the plant were the remarkable, and distinctive, Turkey Red coloured, two-petalled, downward pointing, flowers. Each zygomorphic flower has rather startling spotted sepals and a distinctive dark red spur rising behind. A closer examination in the Herbarium later revealed aspects of its biology that had apparently never been observed before.

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Floral biology of Tropaeolum majus L. (Tropaeolaceae) and its relation with Astylus variegatus activity (Germar 1824) (Coleoptera: Melyridae)

Cited by 10 publications

References 4 publications

Floral Biology and in vitro Germination of Nasturtium Pollen Grains Grown With Poultry Litter

Floral Biology and in vitro Germination of Nasturtium Pollen Grains Grown With Poultry Litter

Tropaeolum Tops Tobacco – Simple and Efficient Transgene Expression in the Order Brassicales

1027. TROPAEOLUM PENTAPHYLLUM subsp. MEGAPETALUM: Tropaeolaceae

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