Morphological aspects of fruits, seeds, seedlings and in vivo and in vitro germination of species of the genus Cleome

Abstract

-The genus Cleome is widely distributed in drier areas of the tropics and subtropics. Cleome dendroides and C. rosea are Brazilian native species that occur mainly in Atlantic Forest and sandy coastal plains, respectively ecosystems negatively affected by human impacts. Cleome spinosa is frequently found in urban areas. Many Cleome species have been used in traditional medicine, as C. spinosa. In the present work, was investigated C. dendroides, C. rosea and C. spinosa germinative behavior under in vivo conditions, as well as was established suitable conditions to in vitro germination and seedling development. The in vivo germination was performed evaluating the influence of temperature, substrate and light. It was observed that only C. spinosa seeds presents physiological dormancy, which was overcome by using alternate temperatures. The substrate influenced significantly the germination of C. rosea and the seeds of C. dendroides showed the highest germination percentages in the different conditions evaluated. The post-seminal development stages under in vivo and in vitro conditions were defined. It was observed that the development was faster under in vitro than in vivo conditions. An effective methodology for in vitro germination, enabling the providing of material to experiment on plant tissue culture was established to C. dendroides and C. spinosa.

New distributional records of Cleome chelidonii L.f. and Cleome rutidosperma DC. (Cleomaceae) in Madura Island

“…Morphologically, Cleome is characterized by its herbaceous habit, bisexual flowers, and dehiscent fruits with persistent replum (Inda et al, 2008;de Castro et al, 2014). The genus is distributed in the drier parts of tropics and subtropics (de Castro et al, 2014). Thus, Cleome can adapt to the drought environment (Backer & Bakhuizen van den Brink, 1965;Koteyeva et al, 2011).…”

Propriedades terapêuticas do gênero cleome, familia cleomaceae

“…Em sua grande maioria, as plantas pertencentes ao gênero Cleome são consideradas herbáceas e de ciclo anual ou perene (CASTRO et al, 2014). Além de plantas herbáceas, o gênero Cleome também possui plantas arbóreas, arbustivas e eventualmente lianas (PEREIRA; BRITO; AMARAL, 2007).…”

“…As sementes da Cleome spinosa além de pequenas possuem um formato que lembra a morfologia renal e apresentam uma coloração que vai do amarelo pálido ao marrom escuro. A germinação de sua semente é positivamente influenciada pela utilização de temperatura alternativa (CASTRO et al, 2014). A planta desenvolve-se bem em ambientes com boa incidência solar, pode chegar a dois metros de altura e suas flores apresentam antese noturna (ZAPATA, 2006).…”

“…Dentre todos os gêneros existentes na família Cleomaceae o gênero Cleome é o mais significativo em termos numéricos, contendo mais de 200 espécies. Em sua grande maioria, as plantas pertencentes ao gênero Cleome são consideradas herbáceas e de ciclo anual ou perene (CASTRO et al, 2014), estudos de análise filogenética tem contribuído para a segregação do gênero (TAMBOLI et al, 2016). A Cleome spinosa ou mussambê é uma planta pertencente à família Cleomaceae e ao gênero Cleome.…”

Micropropagation of Tarenaya rosea (Cleomaceae) from leaf explants

“…These ecosystems are now undergoing intense anthropogenic impact (Rocha et al 2007). This species has been evaluated for its medicinal potential (Simões et al 2006(Simões et al , 2010aSimões-Gurgel et al 2012a), and protocols aiming at its in vitro production and conservation have already been established, including in vitro germination (Castro et al 2014), callogenesis (Simões et al 2009a), cell suspension culture (Simões-Gurgel et al 2011) and cryopreservation (Cordeiro et al 2015a(Cordeiro et al ,b, 2016(Cordeiro et al , 2017(Cordeiro et al , 2020. With respect to in vitro propagation studies (Simões et al 2004(Simões et al , 2009b(Simões et al , 2010b, the morphogenetic potential of leaves, an important source of explants has not been explored so far.…”