Etnobotânica na conservação de espécies com sementes sensíveis à dessecação: o exemplo da Eugenia brasiliensis Lam.

Lamarca, Edmir Vicente; Júnior, Clovis José Fernandes de Oliveira; Barbedo, Claudio José

doi:10.1590/2236-8906-37/2019

Cited by 7 publications

(5 citation statements)

References 46 publications

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“…Seeds of Eugenia species that have been studied and described in the literature up to now are intolerant to desiccation (Andrade et al, 2003;Maluf et al, 2003;Masetto et al, 2008;Delgado and Barbedo, 2012;Scalon et al, 2012;Calvi et al, 2017a;Silva et al 2017;Lamarca et al, 2020). Seeds intolerant to desiccation, popularly known as recalcitrant or intermediate seeds, unlike those tolerant to desiccation, called orthodox seeds, do not form a seed bank Mean values followed by the same letter (lowercase comparing periods, uppercase comparing water potentials) do not differ from each other by Tukey's test at 5%.…”

Section: Resultsmentioning

confidence: 99%

Regeneration of roots and seedlings from Eugenia involucrata seeds under water deficit conditions

Inocente

Barbedo

2021

J. Seed Sci.

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The aim of this study was to analyze the regenerative capacity of Eugenia involucrata seeds as a possible strategy to ensure the production of new seedlings when they are going through a period of water deficit. Progressive water deficit conditions over time (up to 60 days for seeds and 270 days for seedlings) and in intensity (up to -5 MPa for seeds and -10 MPa for seedlings) were simulated, and seedling regeneration was analyzed. The results showed that these seeds can survive even under the most extreme conditions (-5 MPa for 60 days) and some seedling tissues as well (-5 MPa for 270 days). Furthermore, roots and seedlings continued to develop from apparently necrotic tissue on the seed surface, showing that, when necessary, these seeds use their mechanism of formation of new roots and seedlings to ensure species survival under water stress conditions.

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Section: Resultsmentioning

confidence: 99%

Regeneration of roots and seedlings from Eugenia involucrata seeds under water deficit conditions

Inocente

Barbedo

2021

J. Seed Sci.

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“…In general, the fruits of the species of the genus are sensitive to the influence of climate, and in some cases have difficulties completing the maturation process. This characteristic needs to be studied further, because in addition to the timber potential (negative for conservation) there is ethnobotanical potential (conservationist), with implications for seed collection, seedling production, and conservation (Lamarca et al 2020). There are also implications for the use of nontimber forest products of the species, such as the edible fruits of M. salzmannii.…”

Section: Phenophasesmentioning

confidence: 99%

Changes in phenological patterns of a tropical Atlantic Forest tree: implications for conservation

et al. 2022

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The study of the phenological patterns of plants contributes to the understanding of their ecological functioning and related ecosystem services, especially of little-known species. Manilkara salzmannii is a tree native to the Atlantic Forest that occurs in disturbed urban expansion areas. This study aimed to characterize the phenological pattern of M. salzmannii and to correlate its phenophases with meteorological variables. Evaluations were carried out over three years, during which time reproductive and vegetative phenophases were observed in the sampled population. The activity and Fournier indices were initially considered, and circular statistics were later applied. For the correlation with climate, we used data corresponding to the month of observation, as well as one month and two months beforehand. The species has an annual pattern of reproductive events. However, there was variation in the phenological pattern over the three years regarding vegetative and reproductive phenophases. In 2016, there was barely any bud production and blooming, which negatively influenced fruiting events. Leaf senescence was more intense in periods of higher temperature and solar radiation. On the other hand, leaf shedding was more intense in periods of lower wind speed, higher humidity, and precipitation. Immature fruiting correlated positively with temperature and solar radiation, but negatively with humidity and wind speed. Among the implications for the conservation of M. salzmannii, the knowledge obtained regarding the length of the reproductive period stands out. Thus, this study's results can guide the appropriate timing of fruit collection for seedling production programs.

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“…The skin is smooth, shiny, and has different colors [ 4 , 5 ]. In Brazil, grumixama is commercially used for the production of jellies, pies, and liqueurs in the southern and southeastern regions [ 6 ], harvested between November and February, and can also be used in public gardens and ecological restoration programs [ 5 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Chemical Approach to the Optimization of Conditions Using HS-SPME/GC–MS for Characterization of Volatile Compounds in Eugenia brasiliensis Fruit

et al. 2022

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Grumixama (Eugenia brasiliensis Lam.) is a native fruit of the Brazilian Atlantic Forest, belonging to the Myrtaceae family, which designatesthe most significant number of species with food potential. It stands out due to its phytochemical characteristics because of the presence of polyphenols and volatile organic compounds. Volatile compounds are substances released by foods that give off an aroma and influence flavor. Solid-phase microextraction is a technique that allows for low-cost, fast, and solvent-free extraction, has an affinity for numerous analytes, and is easily coupled to gas chromatography. The objectives of this work were to evaluate the efficiency of different fibers of SPME (solid-phase microextraction) in the extraction of volatile organic compounds from grumixama pulp; optimize a method for extraction time, temperature, and sample weight; and to determine the characteristic volatile profile of this fruit. For the extraction of volatile compounds, three fibers of different polarities were used: polar polyacrylate (PA) fibers, divinylbenzene/carboxyne/polydimethylsiloxane (DVB/CAR/PDMS) semipolar fibers, and polydimethylsiloxane/divinylbenzene (PDMS/DVB). Fourteen volatile organic compounds (VOCs) were identified by DVB/CAR/PDMS, six by PA, and seven by PDMS/DVB through solid-phase microextraction in the headspace mode (SPME-HS). Considering the total number of compounds identified, regardless of the fiber used, and the optimization of the method, Eugenia brasiliensis presented sesquiterpene fractions (85.7%, 83.3%, and 85.7% of total VOCs) higher than the monoterpene fractions (14.3%, 16.7%, and 14.3%) for DVB/CAR/PDMS, PA, and PDMS/DVB, respectively in its composition. In addition, it was possible to verify that the fiber DVB/CAR/PDMS presented a better efficiency due to the larger chromatographic area observed when the grumixama pulp was subjected to conditions of 75 °C, 2.0 g, and an adsorption time of 20 min.

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Etnobotânica na conservação de espécies com sementes sensíveis à dessecação: o exemplo da Eugenia brasiliensis Lam.

Cited by 7 publications

References 46 publications

Regeneration of roots and seedlings from Eugenia involucrata seeds under water deficit conditions

Regeneration of roots and seedlings from Eugenia involucrata seeds under water deficit conditions

Changes in phenological patterns of a tropical Atlantic Forest tree: implications for conservation

Chemical Approach to the Optimization of Conditions Using HS-SPME/GC–MS for Characterization of Volatile Compounds in Eugenia brasiliensis Fruit

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