Análise cromossômica em bulbilhos de sisal (Agave spp.) cultivados em diferentes municípios baianos, Brasil

Queiroz, Sandra Regina de Oliveira Domingos; Ortolani, Flávia Aparecida; Mataqueiro, Márcia Fiorese; Osuna, Juan Tomáz Ayala; Môro, José Roberto

doi:10.1590/s0102-33062012000400013

Cited by 4 publications

(5 citation statements)

References 13 publications

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“…IAC4 may be a remnant line of the IAC hybridization experiments conducted in 1958 (Salgado et al, 1979). Also, A. amaniensis is diploid (2n = 60) unlike A. sisalana (Doughty, 1936;Queiroz et al, 2012), and recent chloroplast analysis has also shown that these two species are not the same (Xu et al, 2022). From a morphophysiological perspective, the IAC1, IAC3, and IAC4 samples showed contrasting behaviors when compared to A. sisalana, particularly in terms of chlorophyll content (Figure 6B).…”

Section: Using Mayahuelin To Trace the History Of Agave Accessions In...mentioning

confidence: 94%

“…The limited applicability of the Mayahuelin marker in A. sisalana may be attributed to the origin of this species. A. sisalana is an irregular pentaploid (2n = 5x = 149) (Queiroz et al, 2012) and believed to be a hybrid, possibly between A. angustifolia and A. kewensis (Gentry, 1982), although this has not been yet confirmed. This complex genome composition increases the likelihood of off-target amplification during PCR, and since there is no control over which copy of the gene will be amplified due to polyploidy, it can result in varying outcomes in phylogenetic inference.…”

Section: Using Mayahuelin To Trace the History Of Agave Accessions In...mentioning

confidence: 99%

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Rescuing the Brazilian Agave breeding program: morphophysiological and molecular characterization of a new germplasm

Raya,

de Carvalho,

José

et al. 2023

Front. Chem. Eng.

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Agaves have been a valuable resource in dryland areas for centuries, providing fibers (sisal), food, and beverages. However, the advent of synthetic fibers has led to a decrease in research on Agave, resulting in the cessation of breeding programs in Brazil. With the rise of climate change, there is renewed interest in Agave for its potential as a biofuel feedstock in semiarid regions. Since 2016, we have been collecting Agave accessions throughout the country and retrieving what is left of Brazil’s original breeding program to establish a new germplasm bank. Here, we evaluated 21 of those accessions growing in the field. We used molecular markers and morphophysiological traits to characterize the plants. Based on the Mayahuelin molecular marker, we were able to reconstruct a phylogeny for the Brazilian accessions. The morphophysiological traits explained 34.6% of the phenotypic variation in the dataset, with physiological traits such as leaf water content, effective quantum efficiency of photosystem II (ΦPSII), and specific leaf mass (SLM) as the most significant traits. Specifically, we evaluated nine Agave species and found that the physiological traits, rather than the morphological ones, were the most significant. Leaf water content was negatively correlated with specific leaf mass, which could be used as a marker for selecting cultivars with higher biomass accumulation. Interestingly, ΦPSII and chlorophyll content were negatively correlated, suggesting photochemical adaptations throughout the rosette. Molecular and phenotypic data suggest that A. amaniensis, which is frequently considered a synonym of A. sisalana, is effectively another species. Overall, this study provides valuable information on the physiological traits of Brazilian Agave accessions and is a starting point for selecting more productive and climate-resilient cultivars for biorenewables production.

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Section: Using Mayahuelin To Trace the History Of Agave Accessions In...mentioning

confidence: 94%

Section: Using Mayahuelin To Trace the History Of Agave Accessions In...mentioning

confidence: 99%

Rescuing the Brazilian Agave breeding program: morphophysiological and molecular characterization of a new germplasm

Raya,

de Carvalho,

José

et al. 2023

Front. Chem. Eng.

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“…Possui um caule curto, situado ao nível do solo, folhas longas, suculentas, rígidas, convexas e de coloração verde opaca, inseridas diretamente no caule. Com elevada capacidade de armazenar água e nutrientes, é constituída de uma camada externa de epiderme espessa e resistente, que a protege contra as condições adversas de ambientes áridos (SILVA, 1999;QUEIROZ et al, 2012). Trata-se de uma planta bastante resistente às pressões ambientais, capaz de sobreviver em ecossistemas variados, em climas com baixa umidade e altas temperaturas, tornando-a ideal para o cultivo em regiões tropicais (VIEIRA; FILHO, 2021).…”

Section: Introductionunclassified

Usabilidade da fibra de Agave sisalana Perrine ex Engelm (Sisal) no município de Parnaíba, Piauí, Brasil

Rodrigues,

Andrade

2024

FLOVET

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Este estudo investiga a dinâmica do uso de Agave sisalana Perrine ex. Engelm, conhecida popularmente como sisal, em duas comunidades de artesãos na cidade de Parnaíba, situada no extremo norte do litoral do estado do Piauí. Para coletar dados gerais e amostrar os produtos artesanais derivados do uso dessa planta, foram aplicados questionários integrativos com perguntas que avaliavam não apenas o panorama econômico, social e cultural dos participantes da pesquisa, mas também evidenciavam o uso da planta e sua relação com a prática artesanal dos participantes. A análise dos resultados revelou que o sisal é amplamente utilizado como matéria-prima impulsionadora da economia local, contribuindo para a perpetuação dessa cultura ao longo das gerações. Consequentemente, a continuidade dessa prática é considerada fundamental para a preservação da cultura local, o desenvolvimento econômico e a conscientização ambiental na região estudada.

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“…Originally from the Yucatan Peninsula in Mexico, sisal was exported to Brazilian territory during the 19th century [1]. Nowadays, sisal is crucial for the socioeconomic development of the semi-arid region of the northeast region, particularly in the state of Bahia, which accounts for 90% of its production [2]. Brazil is currently the world's largest producer of sisal, with an average annual production of approximately 140 thousand tons of its hard fiber [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Development of an Antioxidant, Anti-Aging, and Photoprotective Phytocosmetic from Discarded Agave sisalana Perrine Roots

Mazo,

Fracasso,

da Costa

et al. 2024

Cosmetics

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The primary source of hard fiber globally is Agave sisalana Perrine, also known as sisal. In areas where sisal is grown, the roots of the plant are usually left in the field after it has stopped producing, which leads to soil degradation and decreased sisal productivity. It is, therefore, critical to find alternatives to reuse this waste. This study explores the potential use of sisal waste in the cosmetic industry by incorporating a hydroethanolic extract (HER) into a cream–gel formulation, taking advantage of the plant’s recognized ethnopharmacological value. The study involves analyzing the extract’s phytochemical composition (flavonoids) and evaluating its cytotoxicity. Subsequently, the antioxidant and antiglycation activities of the extract and cream–gel are evaluated, as well as ex vivo ocular toxicity, photoprotective activity, and preliminary stability analyses. The HER extract showed a flavonoid composition (catechin, kaempferol, isorhamnetin, and chrysin) and maintained cell viability above 70% throughout all time points analyzed in the MTT assay. Furthermore, the extract and the formulation demonstrated proven antioxidant and antiglycation activities. The cream–gel’s UVB and UVA protection effectiveness with the HER was comparable to that of synthetic UVB/UVA sunscreens, with the samples proving nonirritating and stable. In conclusion, the extract has a significant presence of flavonoids, and the cream–gel developed with it did not present cytotoxicity and met the stability requirements, indicating phytocosmetic potential with antioxidant, antiglycation, and photoprotective properties.

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Análise cromossômica em bulbilhos de sisal (Agave spp.) cultivados em diferentes municípios baianos, Brasil

Cited by 4 publications

References 13 publications

Rescuing the Brazilian Agave breeding program: morphophysiological and molecular characterization of a new germplasm

Rescuing the Brazilian Agave breeding program: morphophysiological and molecular characterization of a new germplasm

Usabilidade da fibra de Agave sisalana Perrine ex Engelm (Sisal) no município de Parnaíba, Piauí, Brasil

Development of an Antioxidant, Anti-Aging, and Photoprotective Phytocosmetic from Discarded Agave sisalana Perrine Roots

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