Biochemical and physiological changes of Tabebuia roseoalba (Ridl.) Sandwith (Bignoniaceae) seeds under storage

Abbade, Leticia Caravita; Takaki, Massanori

doi:10.1590/s2317-15372014000100013

Cited by 13 publications

(10 citation statements)

References 25 publications

(19 reference statements)

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“…As a consequence, the number of cells in division and the mitoctic index may be affected, as observed in Triticum aestivum seeds (Menezes et al, 2014). In Tabebuia roseoalba seeds, a reduction in physiological quality of the seeds was observed, brought about by storage, with reduction in protein levels (Abbade and Takaki, 2014). Accelerated aging provides a favorable condition to seed deterioration, similar to storage.…”

Section: Accelerated Aging In Mobilization Of Reserves During Germinamentioning

confidence: 99%

“…Nevertheless, mobilization undergoes the effect of osmotic components (Reis et al, 2012), of salinity (Silva et al, 2008;Dantas et al, 2014), of light and growth regulators (Ren et al, 2007;Zanotti et al, 2014), of accelerated aging (Zhu and Chen, 2007;Menezes et al, 2014), and of storage (Abbade and Takaki, 2014), factors which may accelerate or slow the process, as well as hurt the development of normal seedlings.…”

Section: Introductionmentioning

confidence: 99%

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Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds

et al. 2015

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-The aim of this study was to identify the phases of water absorption during germination of Carica papaya seeds and evaluate the influence of alternating temperature and accelerated aging on mobilization of reserves during germination. Weight gain was evaluated, obtaining the imbibition curve. Phase I of germination comprises the period from zero to five hours; phase II, from five to 120 hours; and phase III begins after 144 hours. Seeds were subjected to the germination test under temperatures of 25 ºC and of 20-30 ºC (16/8 h), and before and after accelerated aging (43 °C / 72 h). During the germination test, at initial time, after 4, 10, 120, and 240 hours of soaking, we determined the levels of soluble sugars, starch, lipids, and total proteins. Greater germination was observed under alternating temperature. Under this condition, there is reduction of carbohydrates, lipids, and proteins in phase I, and fluctuations in lipid levels, and an increase in protein levels during phases II and III. Mobilization of lipids in papaya seeds is not influenced by accelerated aging, but the seeds subjected to aging have lower protein content in phase III.Index terms: soaking, papaya, soluble sugars, starch, lipids, proteins.Alternância de temperatura e envelhecimento acelerado na mobilização de reservas durante a germinação de sementes de Carica papaya L.RESUMO -Objetivou-se, neste trabalho, identificar as fases da absorção de água durante a germinação de sementes de Carica papaya e avaliar a influência da alternância de temperatura e do envelhecimento acelerado na mobilização de reservas durante a germinação. Foi avaliado o ganho de peso, obtendo-se a curva de embebição. A fase I da germinação compreende o período entre zero e cinco horas; a fase II, entre cinco e 120 horas; e a fase III se inicia após 144 horas. Sementes foram submetidas ao teste de germinação sob temperaturas de 25 ºC e de 20-30 ºC (16/8 h), e antes e após o envelhecimento acelerado (43 °C / 72 h). Durante o teste de germinação, no tempo inicial, após 4, 10, 120 e 240 horas de embebição, foram determinados os teores de açúcares solúveis, amido, lipídeos e proteínas totais. Observou-se maior germinação sob alternância de temperatura. Nesta condição há redução dos carboidratos, lipídeos e proteínas na fase I, flutuações nos teores de lipídeos e aumento nos teores de proteínas durante as fases II e III. A mobilização dos lipídeos em sementes de mamão não sofre influência do envelhecimento acelerado, mas as sementes submetidas ao envelhecimento apresentam menor teor de proteínas na fase III.Temos para indexação: embebição, mamão, açúcares solúveis, amido, lipídeos, proteínas.

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Section: Accelerated Aging In Mobilization Of Reserves During Germinamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds

et al. 2015

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“…During seed storage, some alterations in the levels of biomolecules such as carbohydrates (Bernal-Lugo and Leopold 1992;Garcia et al 2006;Hellmann et al 2008;Veselova et al 2015) and amino acids (Sasaki et al 2013) can occur. Some studies have shown that changes in these compounds during seed storage may be associated with a loss of seed viability (Chandrashekar 2012;Sasaki et al 2013;Abbade and Takaki 2014;Veselova et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Polyamine, amino acid, and carbohydrate profiles during seed storage of threatened woody species of the Brazilian Atlantic Forest may be associated with seed viability maintenance

et al. 2016

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Due to the economic importance of wood production, species including Cedrela fissilis Vell. and Cariniana legalis (Mart.) Kuntze have been heavily exploited and are currently threatened with extinction. In addition, these species produce seeds with low viability when stored for long periods. In this work, the effect of storage time on seedling emergence and alterations in the levels of biomolecules such as carbohydrates, polyamines (PAs), and amino acids were analyzed in C. fissilis and C. legalis seeds. Seedling emergence and the emergence speed index were significantly reduced during seed storage in both species, with a greater reduction for C. legalis seeds. Sucrose was detected in both species, with the highest levels in C. fissilis seeds, whereas the monosaccharides glucose and fructose were detected only in C. legalis seeds. Higher levels of putrescine (Put) were observed in C. legalis seeds than in C. fissilis seeds. In contrast, C. fissilis seeds showed a significant increase in most of the amino acids analyzed. These results suggest that the presence of glucose and fructose, the higher level of Put, and the lower levels of amino acids observed in C. legalis seeds may be associated with greater reductions in vigor and seedling emergence compared with C. fissilis seeds. This is the first report showing these relationships among carbohydrates, PAs, and amino acids in these species and may be useful for further studies on seed conservation of timber species.

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“…According to these authors, the rapid loss of seed vigor was due to the increase in water content during storage, a fact that was not verified for "mofumbo" seeds. Similarly, Abbade and Takaki (2014) with Tabebuia roseoalba seeds also found that the storage period significantly compromised germination, decreasing from 88% to 14% at the end of 24 months. The germination speed index indicated a reduction in the vigor of "mofumbo" seeds during storage.…”

Section: Resultsmentioning

confidence: 83%

Physiological and biochemical responses of “mofumbo” seeds during storage

et al. 2021

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“Mofumbo” (Combretum leprosum Mart. (Combretaceae) is a neotropical species of wood, pharmacological, beekeeping and environmental importance. Thus, the objective was to evaluate the biochemical and physiological responses in C. leprosum seeds under different storage environments. The experiment was carried out in a factorial (2 x 7), with two storage conditions (natural and climate-controlled environments) and seven storage periods (0; 60; 120; 180; 240; 300 and 360 days), in four replications per treatment. At the beginning of storage and at 60-day intervals, the seeds were analyzed for water content, physiological potential (germination, germination speed index, root and shoot lengths and seedling dry mass) and biochemical (neutral lipids, lipid peroxidation, total and reducing sugars, total free amino acids, and starch). The results indicated that storing “mofumbo” seeds for 360 days reduced viability, being more pronounced after 180 days, regardless of the storage environment. “Mofumbo” seeds were stored in a natural environment for 180 days, resulting in less lipid degradation. After this period, the reduction was associated with the attack of reducing sugars on amino acids. Thus, it is concluded that “mofumbo” seeds must be stored in a natural environment for up to 180 days.

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Biochemical and physiological changes of Tabebuia roseoalba (Ridl.) Sandwith (Bignoniaceae) seeds under storage

Cited by 13 publications

References 25 publications

Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds

Alternating temperature and accelerated aging in mobilization of reserves during germination of Carica papaya L. seeds

Polyamine, amino acid, and carbohydrate profiles during seed storage of threatened woody species of the Brazilian Atlantic Forest may be associated with seed viability maintenance

Physiological and biochemical responses of “mofumbo” seeds during storage

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