Tolerance of desiccation and cryopreservation of Butia capitata palm seeds

Dias, Daniel Lucas Santos; Lopes, Paulo Sérgio Nascimento; Ribeiro, Leonardo Monteiro; Oliveira, Leonardo Araújo; Mendes, E.V.; Carvalho, Virgínia Silva

doi:10.15258/sst.2015.43.1.10

Cited by 13 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…ex Sarg., Rhapis L.f. ex Aiton, Sabal Adans., Syagrus Mart., Thrinax L.f. ex Sw., Trithrinax Mart., entre outros. Dias et al (2015) concluíram que sementes de Butia capitata (Mart.) Becc.…”

Section: Resultsunclassified

Tolerância à dessecação e armazenamento em temperatura sub-zero de sementes de Butia odorata (Barb. Rodr.) Noblick

2020

View full text Add to dashboard Cite

show abstract

Section: Resultsunclassified

Tolerância à dessecação e armazenamento em temperatura sub-zero de sementes de Butia odorata (Barb. Rodr.) Noblick

2020

View full text Add to dashboard Cite

show abstract

“…An interesting feature emerging from a plethora of palm storage studies is that whole seeds do not tolerate moisture loss to < 10-15% when dried using silica gel. However, excised embryos can withstand drying to < 10% moisture range and can survive storage at low temperature (Dias et al 2015;Engelmann 2004;Grout et al 1983;Jacob et al 2016;Shao et al 2009;Wen et al 2012). These studies highlight that drying of the embryo is not necessarily lethal for many desiccation-sensitive palm species.…”

Section: What Causes Viability Loss During Desiccation In Arecaceae Seeds?mentioning

confidence: 87%

Ecological insights into the coexistence of dormancy and desiccation-sensitivity in Arecaceae species

Jaganathan

2021

Annals of Forest Science

View full text Add to dashboard Cite

Key message Mechanisms controlling germination of > 2600 Arecaceae species adapted to the tropical forests are not clearly understood. This contribution underpins the notion that the coexistence of dormancy and desiccation sensitivity in some Arecaceae species could significantly affect the germination ecology. Although the evolutionary and ecological significance behind this occurrence is unknown, these traits together could limit the germination from inappropriate depths and allow dispersal.• Context Dormancy and desiccation sensitivity, i.e., recalcitrance, are considered as mutually exclusive traits that evolved to maximize seed survival after dispersal; the former by allowing seeds to spread germination risk temporally then synchronize germination with a favorable growing season, and the latter by allowing germination immediately. However, a few species from temperate ecosystems have been known to produce seeds that are both dormant and desiccation-sensitive, but little is known about such a relationship in the tropical forests.• Aims To understand if desiccation sensitivity and dormancy can coexist in Arecaceae species, distributed predominantly in the tropical forests, and compare the seed traits found in Arecaceae species with other desiccation-sensitive species.• Methods Information published in international peer-reviewed journals was reviewed and a database with records on seed dormancy and desiccation sensitivity was created and discussed. • ResultsThis literature survey has identified diaspores of 34 Arecaceae species that have both desiccation-sensitivity and an underdeveloped, small embryo, i.e., morphophysiological dormancy or morphological dormancy. In Arecaceae species, desiccation-sensitivity is neither confined to large-sized diaspores, nor all species adapted to dry ecosystems disperse diaspore during the wet-season; features reported to be prevalent in desiccation-sensitive species of other families. Endocarp is proposed to act as a mechanical barrier preventing water loss and also offer protection against physical damage; however, the extent of protection against water loss from internal structures is contentious. • ConclusionThe possible ecological significance of this unique relationship noted in Arecaceae is currently unknown, and this review puts forward "testable" hypotheses that call for more studies on germination ecology focusing on dispersal and burial.

show abstract

“…Although, embryos dried for 300 min exhibited high viability (germination and TTC test > 90%), the germination speed index (GSI) decreased substantially from 0.71 (control) to 0.42 (300 min), indicating a reduction of vigor. A study with B. capitata showed that whole seeds were able to tolerate moisture loss to 10 and 5%, whereas dehydration to 3.5% moisture content was harmful (Dias et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Biotechnologies Tools for Germination and Preservation of Butia Eriospatha Embryos (Arecaceae)

Goeten

Elias

Silva

et al. 2022

Preprint

View full text Add to dashboard Cite

Butia eriospatha is an endemic species of Brazilian Atlantic Forest and due to the anthropic intervention, it is in the vulnerable conservation status. In this species, plants are only regenerate by seeds which have dormancy and slow as well low germination. To cope with the concern limitation of seedling establishment we study B. eriospatha embryo desiccation tolerance threshold as well the physiological requirement for in vitro germination and cryopreservation. Fresh embryos and desiccated ones were in vitro germinated using a culture medium with hormones and antioxidants. The embryo desiccation tolerance threshold was 0.14 gH2O.gDW-1 with 93.33% of germination. During embryos desiccation was observed a significant increase in PUT, which resulted in the ratio decrease [(SPD+SPM). PUT-1] DW), but the SPD was the most abundant polyamine overall. Significant increase in POD and APX activity led us to suggest that they are the main enzymes involved in cellular protection during desiccation. An increase of amino acids content, especially glutamic acid (Glu), leucine (Leu), lysine (Lys), glutamine (Gln), which are known as osmoprotectors, also was observed. A specific embryo desiccation stage (0.14 gH2O gDW-1) associated to its biochemical state were successfully used in the cryopreservation protocol and result in more than 90% of recovery and in vitro germination. The physiological and biochemistry approach of this study associated to an applied protocol for plant genetic resources conservation of B. eriospatha embryo can be potentially used for other Arecaceae species.

show abstract

Tolerance of desiccation and cryopreservation of Butia capitata palm seeds

Cited by 13 publications

References 0 publications

Tolerância à dessecação e armazenamento em temperatura sub-zero de sementes de Butia odorata (Barb. Rodr.) Noblick

Tolerância à dessecação e armazenamento em temperatura sub-zero de sementes de Butia odorata (Barb. Rodr.) Noblick

Ecological insights into the coexistence of dormancy and desiccation-sensitivity in Arecaceae species

Biotechnologies Tools for Germination and Preservation of Butia Eriospatha Embryos (Arecaceae)

Contact Info

Product

Resources

About