<i>Coulteria sousae</i> (Leguminosae: Caesalpinioideae), a New Species from the Rio Balsas Depression, Mexico

Sotuyo, Solange; Contreras-Jiménez, José Luis; Rico-Arce, Lourdes

doi:10.1600/036364422x16573019348229

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…Una de las especies en la subfamilia Caesalpinioideae es nueva para la ciencia, Coulteria sousae Sotuyo & J.L. Contreras, sp nov. (Sotuyo et al 2022). Así mismo, se reporta por primera vez en la Depresión del Río Balsas a Calliandropsis nervosus (Hernández & Guinet 1990), y se amplía la distribución en su límite sur para Mimosa purpusii Brandegee (Grether et al 2006).…”

Section: Resultsunclassified

Las leguminosas del Área Natural Protegida del Boquerón de Tonalá, Oaxaca, México

2022

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Antecedentes: El Área de Protección de Flora y Fauna (APFF) Boquerón de Tonalá, posee características climáticas, geológicas y edáficas distintivas, albergando diversos tipos de vegetación. Las leguminosas de la región no han sido inventariadas a detalle en su conjunto. Preguntas: ¿Cuáles son las especies de leguminosas en el área Natural Protegida del Boquerón de Tonalá, Oaxaca? ¿Existen diferencias en la riqueza de especies por tipo de vegetación? Sitio y años de estudio: Área de Protección de Flora y Fauna (APFF) Boquerón de Tonalá, Oaxaca; junio de 2017 a junio de 2018. Métodos: Se eligieron ocho localidades y 14 sitios correspondientes a las comunidades vegetales dominantes que cubren toda el APFF Boquerón de Tonalá y el gradiente altitudinal. Se cubrieron 58 días de trabajo de campo. Los ejemplares colectados por subfamilia, género y especie fueron contabilizados. Resultados: Se recolectaron 177 ejemplares más sus duplicados, estos corresponden a 85 especies, de 38 géneros de la familia Leguminosae, incluidos en tres subfamilias y del clado Mimosoide que tratamos como separado. El mayor número de géneros y especies encontrados pertenecen a la subfamilia Papilionoideae. Los géneros con mayor número de especies fueron Brongniartia, Mimosa, Senna y Vachellia (antes parte de Acacia). La selva baja caducifolia fue el tipo de vegetación con mayor número de especies y géneros encontrados. Se encontró una especie nueva de Coulteria (subfamilia Caesalpinioideae) en encinares. Conclusiones: La diversidad florística de leguminosas del APFF Boquerón de Tonalá, muestra que deben reforzarse las estrategias de manejo y conservación en el área.

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Section: Resultsunclassified

Las leguminosas del Área Natural Protegida del Boquerón de Tonalá, Oaxaca, México

2022

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“…( Sotuyo and Contreras-Jiménez 2021b ), and C. sousae Sotuyo, J.L. Contreras & L. Rico ( Sotuyo et al 2022 ). Brasilettia sensu Britton & Rose (1930), which included eight species, is a synonym of Coulteria .…”

Section: 6 Tribe Caesalpinieaementioning

confidence: 99%

“…Britton and Rose (1930) ; Gagnon et al (2016) ; Lewis (2005b) ; Sotuyo and Contreras-Jiménez (2021a , 2021b ); Sotuyo et al (2017 , 2021 , 2022 ); Torres-Colín and Saynes-Vásquez (2020) ; Ulibarri (1996) ; Zamora Villalobos (2010).…”

Section: 6 Tribe Caesalpinieaementioning

confidence: 99%

Advances in Legume Systematics 14. Classification of Caesalpinioideae. Part 2: Higher-level classification

Bruneau,

de Queiroz,

Ringelberg

et al. 2024

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Caesalpinioideae is the second largest subfamily of legumes (Leguminosae) with ca. 4680 species and 163 genera. It is an ecologically and economically important group formed of mostly woody perennials that range from large canopy emergent trees to functionally herbaceous geoxyles, lianas and shrubs, and which has a global distribution, occurring on every continent except Antarctica. Following the recent re-circumscription of 15 Caesalpinioideae genera as presented in Advances in Legume Systematics 14, Part 1, and using as a basis a phylogenomic analysis of 997 nuclear gene sequences for 420 species and all but five of the genera currently recognised in the subfamily, we present a new higher-level classification for the subfamily. The new classification of Caesalpinioideae comprises eleven tribes, all of which are either new, reinstated or re-circumscribed at this rank: Caesalpinieae Rchb. (27 genera / ca. 223 species), Campsiandreae LPWG (2 / 5–22), Cassieae Bronn (7 / 695), Ceratonieae Rchb. (4 / 6), Dimorphandreae Benth. (4 / 35), Erythrophleeae LPWG (2 /13), Gleditsieae Nakai (3 / 20), Mimoseae Bronn (100 / ca. 3510), Pterogyneae LPWG (1 / 1), Schizolobieae Nakai (8 / 42–43), Sclerolobieae Benth. & Hook. f. (5 / ca. 113). Although many of these lineages have been recognised and named in the past, either as tribes or informal generic groups, their circumscriptions have varied widely and changed over the past decades, such that all the tribes described here differ in generic membership from those previously recognised. Importantly, the approximately 3500 species and 100 genera of the former subfamily Mimosoideae are now placed in the reinstated, but newly circumscribed, tribe Mimoseae. Because of the large size and ecological importance of the tribe, we also provide a clade-based classification system for Mimoseae that includes 17 named lower-level clades. Fourteen of the 100 Mimoseae genera remain unplaced in these lower-level clades: eight are resolved in two grades and six are phylogenetically isolated monogeneric lineages. In addition to the new classification, we provide a key to genera, morphological descriptions and notes for all 163 genera, all tribes, and all named clades. The diversity of growth forms, foliage, flowers and fruits are illustrated for all genera, and for each genus we also provide a distribution map, based on quality-controlled herbarium specimen localities. A glossary for specialised terms used in legume morphology is provided. This new phylogenetically based classification of Caesalpinioideae provides a solid system for communication and a framework for downstream analyses of biogeography, trait evolution and diversification, as well as for taxonomic revision of still understudied genera.

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“…The Coulteria genus belongs to the subfamily Caesalpinideae and emerged from Caesalpinia sensu lato as a generic segregate. 5 There are currently 10 accepted species in the Coulteria genus: C cubensis , C glabra , C mollis , C platyloba , C pringlei , C pumila , C velutina , 6 C rosalindamedinae , 7 C delgadoana , 8 and C sousae . 9 Consequently, the presence of cassane-type diterpenes as the predominant class of compounds can be hypothesized according to the described phytochemical studies of the restructured genus Caesalpinia .…”

Section: Introductionmentioning

confidence: 99%

Absolute Configuration and Cytotoxicity of a New Vouacapane Diterpenoid from Coulteria velutina

Magallón-Chávez,

Hernández-Padilla,

Rodríguez-García

et al. 2024

Natural Product Communications

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Objective: Determine the structure, absolute configuration, and antiproliferative activity of a new furan diterpenoid isolated from the leaves of Coulteria velutina (Britton & Rose) Sotuyo & G.P.Lewis (Fabaceae). Methods: The structures of the natural product and those of 2 derivatives were established mainly by nuclear magnetic resonance spectroscopy, while their absolute configurations were established using vibrational circular dichroism involving comparison of the experimental and calculated spectra of a rigid derivative. Results: Isolation of (−)-(4 R,5 R,6 R,8 S,9 S,10 R,14 R)-6-[( E)- p-coumaroyloxy]vouacapan-18-oic acid (1), an undescribed secondary metabolite from the leaves of C velutina, is reported hereafter. Hydrolysis of 1 provided (+)-(4 R,5 R,6 R,8 S,9 S,10 R,14 R)-6-hydroxyvouacapan-18-oic acid (2), identical to a diterpenoid isolated from Caesalpinia echinata, but whose absolute configuration remained undetermined. Subsequent lactonization of 2 yielded (+)-(4 R,5 R,6 R,8 S,9 S,10 R,14 R)-vouacapan-6,18-olide (3). The absolute configurations of compounds 1–3 were established by vibrational circular dichroism studies of 3. In addition, the antiproliferative activity of the natural product 1 against HeLa, MDA-MB-231, Caco-2, and NIH/3T3 cell lines is reported. Conclusions: The leaves of C velutina yielded the new vouacapane 1. It showed weak antiproliferative activity against HeLa and MDA-MB-231 cancer cell lines (IC50 = 92.2 and 106.2 μg/mL, respectively), but was also weakly active against the NIH/3T3 healthy cell line (IC50 value of 127.6 µg/mL). Its absolute configuration was determined by vibrational circular dichroism analysis of the conformationally rigid compound 3. This derivative can be used as a reference for the absolute configuration of related vouacapanes. In addition, this is the first phytochemical investigation of C velutina.

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Coulteria sousae (Leguminosae: Caesalpinioideae), a New Species from the Rio Balsas Depression, Mexico

Cited by 3 publications

References 10 publications

Las leguminosas del Área Natural Protegida del Boquerón de Tonalá, Oaxaca, México

Las leguminosas del Área Natural Protegida del Boquerón de Tonalá, Oaxaca, México

Advances in Legume Systematics 14. Classification of Caesalpinioideae. Part 2: Higher-level classification

Absolute Configuration and Cytotoxicity of a New Vouacapane Diterpenoid from Coulteria velutina

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