Comparative seed morphology of Mexican Nymphaea species

Bonilla-Barbosa, Jaime Raúl; Novelo, Alejandro; Orozco, Yolanda Hornelas; Márquez‐Guzmán, Judith

doi:10.1016/s0304-3770(00)00125-x

Cited by 19 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, a few West Indian floras have recognized N. pulchella as distinct from N. ampla, including Britton (1906, sub Castalia), Britton & Wilson (1924, sub Castalia), Sauget & Liogier (1951), Liogier (1983), and Liogier (1985) and, more recently, we have independently arrived at similar conclusions (Bonilla-Barbosa & al., 2000;Bonilla-Barbosa, 2001;Wiersema, 2001Wiersema, , 2003, i.e., that two species should be distinguished in this group. In light of this distinction, it is now desirable to re-examine the typification of all names involved to ensure their correct application.…”

Section: Introductionsupporting

confidence: 77%

See 1 more Smart Citation

Taxonomy and typification of Nymphaea ampla (Salisb.) DC. sensu lato (Nymphaeaceae)

Wiersema

Novelo²,

Bonilla-Barbosa

2008

TAXON

View full text Add to dashboard Cite

Recent work on Nymphaea ampla (Salisb.) DC. s.l. in tropical America suggests that two species should be distinguished within this broadly circumscribed taxon, which formerly has mostly been treated to include all of the native tropical diurnally flowering water‐lilies of Central and South America and the Antilles. The two species are distinguished by their leaf margins, venation pattern, and coloration; by the number of flower parts; and by seed morphology. To determine proper nomenclature for the two recognized species, the typification of all relevant names is investigated. The typification of several names is reported, including the two names proposed for acceptance: N. ampla for a species of Mexico, Mesoamerica, and the Greater Antilles and N. pulchella DC. for a species from southern and central Mexico, southern Mesoamerica, South America, and the Greater and Lesser Antilles.

show abstract

Section: Introductionsupporting

confidence: 77%

“…Useful characters for distinguishing between them are shown in Table 1. Further differences in seed size, fine surface topography, and number and interdigitation of sclereid lobules are illustrated in Bonilla- Barbosa & al. (2000).…”

Section: Introductionmentioning

confidence: 83%

Taxonomy and typification of Nymphaea ampla (Salisb.) DC. sensu lato (Nymphaeaceae)

Wiersema

Novelo²,

Bonilla-Barbosa

2008

TAXON

View full text Add to dashboard Cite

show abstract

“…Para Garcia-Murillo (1993) esta espécie pode se espalhar vegetativamente através da produção de propágulos, persistindo apenas por meios assexuados. O único registro de fruto feito para a área, apresenta fruto e sementes com tamanho abaixo de outros registros (Bonilla-Barbosa et al 2000, Feres & Amaral 2003b, possivelmente um fruto em início de desenvolvimento.…”

Section: Resultsunclassified

Nymphaeales No Núcleo Curucutu, Parque Estadual Serra Do Mar, São Paulo, Sp, Brasil / Nymphaeales in Núcleo Curucutu, Parque Estadual Serra Do Mar, São Paulo, São Paulo State, Brazil

Hora

Affonso

2021

BJD

View full text Add to dashboard Cite

This work consisted of a floristic survey and taxonomical study of the Nymphaeales in núcleo Curucutu, Parque Estadual Serra do Mar, São Paulo, SP, Brazil. Analytical key, descriptions, images, phenology, and geographic distribution of the species are provided. The order is represented in the area by two species: Cabomba caroliniana A. Gray (Cabombaceae) and Nymphaea mexicana Zucc. (Nymphaeaceae).

show abstract

“…The modified tropical water lilies are great breeding parents to introduce the new cold stress-tolerant character to those tropical water lilies with different floral features, flower colors, and leaf colors. Since water lilies have two reproductive strategies, asexual reproduction, and sexual reproduction 43 , the introduced novel traits would be easily maintained. Although the current genetic transformation efficiency of water lilies based on the pollen-tube channel method reached only 1‰, the number of seeds of a single flower of a tropical water lily can amount up to 10,000 and even more so, the transformation efficiency can be greatly compensated compared to other crop plants.…”

Section: Discussionmentioning

confidence: 99%

Molecular breeding of water lily: engineering cold stress tolerance into tropical water lily

Yu¹,

Qiao²,

Qiu³

et al. 2018

Hortic Res

View full text Add to dashboard Cite

Water lilies (order Nymphaeales) are rich in both economic and cultural values. They grow into aquatic herbs, and are divided into two ecological types: tropical and hardy. Although tropical water lilies have more ornamental and medicinal values compared to the hardy water lily, the study and utilization of tropical water lilies in both landscaping and pharmaceutical use is greatly hindered due to their limited planting area. Tropical water lilies cannot survive the winter in areas beyond 24.3°N latitude. Here, the transgenic pipeline through the pollen-tube pathway was generated for water lily for the first time. To improve cold stress tolerance of tropical water lilies, a gene encoding choline oxidase (CodA) driven by a cold stress-inducible promoter was transformed into a tropical water lily through the pollen-tube transformation. Six independent transgenic lines were tested for survival rate during two winter seasons from 2015 to 2017 in Hangzhou (30.3°N latitude). PCR and southern blot detection revealed that the CodA gene had been integrated into the genome. Reverse transcription PCR showed that CodA gene was induced after cold stress treatment, and further quantitative real-time PCR revealed different expressions among six 4 lines and line 3 had the highest expression. Multiple physiological experiments showed that after cold stress treatment, both the conductivity and malondialdehyde (MDA) levels from transgenic plants were significantly lower than those of non-transgenic plants, whereas the content of betaine and the activity of superoxide dismutase, catalase, and peroxidase were higher than those from non-transgenic plants. These results suggest that expression of exogenous CodA gene significantly improved the cold stress tolerance of tropical water lilies through a wide range of physiological alterations. Our results currently expanded a six-latitude cultivating area of the tropical water lilies. These results not only illuminate the bright future for water lily breeding but will also facilitate the functional genomic studies.

show abstract

Comparative seed morphology of Mexican Nymphaea species

Cited by 19 publications

References 12 publications

Taxonomy and typification of Nymphaea ampla (Salisb.) DC. sensu lato (Nymphaeaceae)

Taxonomy and typification of Nymphaea ampla (Salisb.) DC. sensu lato (Nymphaeaceae)

Nymphaeales No Núcleo Curucutu, Parque Estadual Serra Do Mar, São Paulo, Sp, Brasil / Nymphaeales in Núcleo Curucutu, Parque Estadual Serra Do Mar, São Paulo, São Paulo State, Brazil

Molecular breeding of water lily: engineering cold stress tolerance into tropical water lily

Contact Info

Product

Resources

About