Tricomas foliares en Senecio sección Mulgediifolii (Senecioneae, Asteraceae)

Rojas-Leal, Alicia; Villaseñor, José Luis; Terrazas, Teresa

doi:10.21829/abm119.2017.1232

Cited by 7 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The information obtained through comparative morpho-anatomical studies is necessary for ecological, phylogenetic and evolutionary studies. For example, anatomical characters, especially of leaves, have been extensively used in the systematics of several plant families, including Bromeliaceae (De Faria et al, 2012), Myrtaceae (Al-Edany and Al-Saadi, 2012), Amaryllidaceae (Lin and Tan, 2015), Malpighiaceae (Araújo et al, 2010) and Asteraceae (Castro et al, 1997;Milan et al, 2006;Adedeji and Jewoola, 2008;Bombo et al, 2012;Akinnubi et al, 2014;Rojas-Leal et al, 2017;Lusa et al, 2018). Particularly in Asteraceae, leaf architecture and anatomical characters are extremely diverse (Bombo et al, 2012;Rojas-Leal et al, 2014, 2018 and have been studied from an ecological (Bercu et al, 2012;Moroney et al, 2013;Rivera et al, 2017;Ferraro and Scremin-Dias, 2018), physiological (Bondarev et al, 2003;McKown and Dengler, 2007;Santiago and Kim, 2009), and medical perspective (Cambi et al, 2006;Hulley et al, 2010;García-Sánchez et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico

et al. 2019

Self Cite

View full text Add to dashboard Cite

Background and Aims: Leaf architecture and anatomy in the Asteraceae family are extremely diverse and have been studied from ecological, physiological and evolutionary perspectives. The aims of this study are to describe in detail leaf architecture and anatomy for 61 species belonging to 13 tribes of Asteraceae inhabiting a xerophytic scrub in Mexico City, Mexico and to discuss characters common to these tribes.Methods: Mature and undamaged leaves of 61 species of Asteraceae were collected in southwestern Mexico City in the “Reserva Ecológica del Pedregal de San Ángel” (REPSA). Standard anatomical techniques were used to obtain permanent slides of cleared leaves and transverse and paradermal sections. The permanent slides were analyzed to describe leaf architecture and anatomy by tribe following the standard terminologies.Key results: The results show a significant variation in leaf architecture although pinnate venation, brochidodromous secondary venation, areoles moderately developed and looped ultimate marginal venation predominate in the material studied. For anatomy, the most common traits are the striate cuticle, occurrence of trichomes and glands, as well as collateral vascular bundles with a parenchymatous sheath with girders in the Asteraceae present in this xerophytic scrub. There are no unique combinations of leaf characters for the family or any tribe.Conclusions: Leaf diversity in the family and within each tribe is consistent with some previous reports. Anatomical descriptions are a fundamental piece of the evolutionary, ecological and physiological studies in Asteraceae. The results of this descriptive study will allow testing hypotheses about the factors causing leaf diversity in this plant lineage. More leaf anatomical studies of the family are necessary to confirm the patterns proposed for the tribes and the family.

show abstract

Section: Introductionmentioning

confidence: 99%

Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Similar trichomes to the semigloboid head were reported by Castro et al (1997), Martins (2003) and Duarte et al (2011) in other species of Asteraceae. Globoid head trichomes were also reported in other representatives of the Senecioneae tribe (Martins 2003, Rojas-Leal et al 2017) and trichome heads with this shape have already been described in Calea uniflora by G2) with oblong-ovate head in Lessingianthus macrocephalus and Vernonanthura nudiflora, respectively. f-g. Erect-capitate glandular trichome (G2) with semigloboid head in Aspilia montevidensis and Lucilia acutifolia, respectively.…”

Section: Resultsmentioning

confidence: 52%

“…The functions developed by them depend on their morphology, orientation, and density (Werker 2000, Wagner et al 2004. Longer, non-glandular trichomes which cover the entire leaf surface, as observed in most of the species studied, may act as a mechanical barrier against pest attack (Levin 1973), decrease water loss through reflection (Ehleringer 1984, Wagner et al 2014 and influence the wettability of the leaves making them repellent to water and thus preventing the growth of pathogenic microorganisms, the deposition of pollutants and favoring photosynthetic yield (Wang et al 2015, Rojas-Leal et al 2017.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Morphological diversity of foliar trichomes in Asteraceae from Sand-fields of the Pampa biome, Rio Grande do Sul State, Brazil

Liesenfeld

Gentz

Freitas

et al. 2019

Hoehnea

View full text Add to dashboard Cite

Asteraceae is the largest family of angiosperms and occurs predominantly in grassland areas. This study aimed to identify and characterize the foliar trichomes of 34 Asteraceae species from Sand-fields of the Pampa biome, by means of epidermal analyzes (front and transverse view) under light and scanning electron microscopy. Eleven types of trichomes were identified and characterized: three glandular (recurved on the epidermis, erect-capitate and uniseriate to multiseriate vesicular-capitate) and eight non-glandular (simple conical, flagellate-filiform, aseptate-flagellate, whip-like, oblique-flagellate, branched with one arm, branched with two T-shaped arms, branched with three or more arms). The most representative glandular type was the uniseriate to multiseriate vesicular-capitate (58%) and the non-glandular type was the simple conical (35%). A large number of trichomes is an adaptive strategy to the adverse conditions of the Pampa biome and its morphological diversity can be useful in the family systematics.

show abstract

“…Los tricomas han sido relevantes en la taxonomía de diversas especies de Asteraceae (Lapp et al 2004, Adedeji & Jewoola 2008, Redonda-Martínez et al 2012, Rojas-Leal et al 2017. En los taxones analizados de Tagetes, se describen diferentes tipos de tricomas que revelan la variación entre las especies.…”

Section: Discussionunclassified

Anatomía foliar de nueve especies de Tagetes L. (Tageteae: Asteraceae)

et al. 2022

View full text Add to dashboard Cite

Antecedentes: Tagetes contiene cerca de 55 especies, su mayor centro de diversificación se encuentra en México con 35. Cerca del 10 % de las especies tienen importancia en el ámbito cultural y económico. A la fecha, se carece de estudios anatómicos en la mayoría de ellas. Pregunta: ¿Existen caracteres anatómicos foliares de valor diagnóstico que permitan discriminar entre las nueve especies de Tagetes estudiadas? Especies de estudio: Tagetes lacera, T. lemmonii, T. linifolia, T. lucida, T. lunulata, T. micrantha, T. parryi, T. stenophylla, T. zypaquirensis. Sitio de estudio y fecha: Áreas de distribución natural en el Altiplano Mexicano, Faja Volcánica Transmexicana y CampoExperimental de Fitotecnia, Universidad Autónoma Chapingo, Texcoco, Estado de México, durante el 2017. Métodos: Se recolectaron ejemplares botánicos. Sus hojas fueron fijadas y sometidas a técnicas convencionales de anatomía vegetal, se diafanizaron e incluyeron en parafina para su observación y análisis. Resultados: Las especies de Tagetes desarrollan hojas enteras y pinnatisectas, el patrón de venación secundaria fue eucamptódromo tornándose reticulódromo distalmente y broquidódromo simple y festoneado. La venación última marginal fue incompleta excepto de T. lunulata. Se observaron abundantes y diversos tricomas, mesofilo dorsiventral e isolateral, haces colaterales con vaina y canales en el mesofilo y en la vena media. Conclusiones: La arquitectura y la anatomía foliar de las especies estudiadas revela caracteres comunes en Asteraceae. Sin embargo, en Tagetes el tipo de tricomas, de mesofilo, tamaño de los canales y esclerénquima asociada a los haces vasculares son importantes. Translate stop

show abstract

Tricomas foliares en Senecio sección Mulgediifolii (Senecioneae, Asteraceae)

Cited by 7 publications

References 15 publications

Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico

Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico

Morphological diversity of foliar trichomes in Asteraceae from Sand-fields of the Pampa biome, Rio Grande do Sul State, Brazil

Anatomía foliar de nueve especies de Tagetes L. (Tageteae: Asteraceae)

Contact Info

Product

Resources

About