Habranthus (Amaryllidaceae) do Brasil

Amaral-Lopes, Andrielle C; Cavalcanti, Taciana Barbosa

doi:10.1590/2175-7860201566112

Cited by 6 publications

(6 citation statements)

References 5 publications

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“…This matter should be tested with morphological and genetic studies, as should the extent of Z . gracilifolia into southeastern Brazil (e.g., Amaral‐Lopes & Cavalcanti, ).…”

Section: Formal Taxonomymentioning

confidence: 99%

“…The wide environmental range displayed by Zephyranthes jamesonii deserves more in-depth studies of its morphological and genetic variation to explore the possible existence of cryptic species. This matter should be tested with morphological and genetic studies, as should the extent of Z. gracilifolia into southeastern Brazil (e.g., Amaral-Lopes & Cavalcanti, 2015). ( Description.…”

Section: Zephyranthes Amambaicamentioning

confidence: 99%

“…-Morphological descriptions of this species can be found in Ravenna (2003c; as Habranthus teretifolius), Hurrel (2009), andAmaral-Lopes &Cavalcanti (2015). Phylogenetic analyses of molecular data suggest that Zephyranthes pedunculosa might be sister to Z. subg.…”

Section: Zephyranthes Bifidamentioning

confidence: 99%

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Generic classification of Amaryllidaceae tribe Hippeastreae

Garcı́a

Meerow

Arroyo-Leuenberger

et al. 2019

TAXON

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A robust generic classification for Amaryllidaceae has remained elusive mainly due to the lack of unequivocal diagnostic characters, a consequence of highly canalized variation and a deeply reticulated evolutionary history. A consensus classification is proposed here, based on recent molecular phylogenetic studies, morphological and cytogenetic variation, and accounting for secondary criteria of classification, such as nomenclatural stability. Using the latest sutribal classification of Hippeastreae (Hippeastrinae and Traubiinae) as a foundation, we propose the recognition of six genera, namely Eremolirion gen. nov., Hippeastrum, Phycella s.l., Rhodolirium s.str., Traubia, and Zephyranthes s.l. A subgeneric classification is suggested for Hippeastrum and Zephyranthes to denote putative subclades. In Hippeastrum, we recognize H. subg. Hippeastrum and H. subg. Tocantinia. In Zephyranthes, Z. subg. Eithea, Z. subg. Habranthus, Z. subg. Myostemma (= core Rhodophiala clade), Z. subg. Neorhodophiala subg. nov., and Z. subg. Zephyranthes are recognized. Descriptions, synonymy, taxonomic keys, and new combinations are provided for each genus and subgenus.

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“…This matter should be tested with morphological and genetic studies, as should the extent of Z . gracilifolia into southeastern Brazil (e.g., Amaral‐Lopes & Cavalcanti, ).…”

Section: Formal Taxonomymentioning

confidence: 99%

Section: Zephyranthes Amambaicamentioning

confidence: 99%

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Generic classification of Amaryllidaceae tribe Hippeastreae

Garcı́a

Meerow

Arroyo-Leuenberger

et al. 2019

TAXON

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“…White lilly (Crinum americanum L.) is a bulbous plant species of the Amaryllidaceae botanical family. This family comprises 85 genera and at least 1100 species of bulbous plants distributed mainly in tropical and subtropical areas of the world [1]. The genus, Crinum, contains over 130 species widely distributed in tropical and temperate regions of both North and South hemispheres [2].…”

Section: Introductionmentioning

confidence: 99%

Induction of Callus in Leaf Explants of Crinum americanum L. (Amaryllidaceae)

Copeland

Santos

Torres

et al. 2020

EJMP

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Amaryllidaceae include plant species that present alkaloids with analgesic, anti-cancer, anti-bacterial, anti-viral, anti-fungal and anti-malarial activities. Due to this pharmacological value, several species of this family have been widely studied and among them is White lilly, Crinum americanum. The objective of this work was to induce callogenesis on leaf explants of C. americanum cultivated in vitro for future production of alkaloids. Leaf explants were grown on a culture medium (solid) Murashige and Skoog (1962) supplemented with different concentrations and combinations of plant growth regulators, auxin 2,4-dichlorophenoxyacetic acid and cytokinin 6-benzylaminopurine and their effect on callogenesis assessed for percentage oxidation and explants responsive to callus induction. Callus formation started 10 days after hormone inoculation, and within 30 days after inoculation the best callogenesis and callus biomass growth were observed in medium containing 2.5 mg L-1 of 2,4-dichlorophenoxyacetic acid and 10 mg L-1 of 6-benzylaminopurine. The lowest percentage of oxidation was observed on explants cultivated on medium containing 5 mg L-1 of 6-benzylaminopurine and 2.5 mg L-1 of 2,4-dichlorophenoxyacetic acid. The calli obtained were compact and embryogenic. This work contributes not only to future studies on in vitro callogenesis of this species, but also to a possible protocol for the production of alkaloids of interest from cell suspension cultures produced in vitro. This is the first report of callus formation in Crinum americanum explants.

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“…Se distribuye en Brasil austral, Paraguay, Uruguay y Argentina, en nuestro país principalmente en Tucumán, Misiones, Corrientes, Entre Ríos y Buenos Aires (Arroyo-Leuenberger, 1996), en cercanías de los ríos Uruguay, Paraná y de La Plata (Arroyo-Leuenberger, 1996;Hurrell et al, 2005). Habranthus también es un género de bulbosas perennes originarias de América, presenta amplia distribución, abarcando partes del sur de Norteamérica, Centroamérica, y su mayor diversidad se encuentra en Sudamérica (Arroyo, 1990;Meerow & Snijman, 1998;Meerow et al, 2000;Amaral Lopes & Barbosa Cavalcanti, 2015). Habranthus brachyandrus (Baker) Sealy es una especie con hojas deciduas, presenta un escapo unifloro, con las flores de color rosado intenso y el centro más oscuro, florece principalmente en verano y se cultiva con fines ornamentales en diversos países del mundo (Jitsuno et al, 2009).…”

Section: Introductionunclassified

Regeneración de bulbos de Hippeastrum Striatum y Habranthus Brachyandrus (Amaryllidaceae) sometidos a corte longitudinal

Orlando¹,

Ana²,

Daviña³

2018

Bol. Soc. Argent. Bot.

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La capacidad de regeneración vegetativa de bulbos de Hippeastrum striatum y Habranthus brachyandrus sometidos a corte longitudinal, fue analizada como alternativa para la propagación vegetativa de estas especies ornamentales promisorias. En ambas, el número de bulbillos hijos producido fue mayor cuando el bulbo madre fue cortado. En H. striatum se regeneraron entre 13 y 20 bulbillos con diámetros que variaron entre los 1,02 cm y 1,16 cm (x = 1,09 cm). En H. brachyandrus se obtuvieron de 16 a 23 bulbillos con diámetros que variaron entre los 0,87 cm y 0,94 cm (x = 0,91 cm). La cantidad de hojas en los bulbillos regenerados varió entre 5 y 0 hojas/bulbillo en H. striatum y entre 3 y 0 en H. brachyandrus. Los bulbos que no fueron sometidos a corte (tratamiento control), no produjeron bulbillos en H. brachyandrus, en cambio en H. striatum se obtuvieron bulbillos de menor tamaño sin indicios de desarrollo de hojas. La inducción mecánica a través de corte longitudinal en los bulbos tuvo un efecto altamente significativo en las variables evaluadas, estimulando el proceso de activación de las yemas basales de las escamas originando la progenie asexual de origen clonal.

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Habranthus (Amaryllidaceae) do Brasil

Cited by 6 publications

References 5 publications

Generic classification of Amaryllidaceae tribe Hippeastreae

Generic classification of Amaryllidaceae tribe Hippeastreae

Induction of Callus in Leaf Explants of Crinum americanum L. (Amaryllidaceae)

Regeneración de bulbos de Hippeastrum Striatum y Habranthus Brachyandrus (Amaryllidaceae) sometidos a corte longitudinal

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