Germination of Sedum oxypetalum (Crassulaceae) in a primary lava-field shrubland

Martínez‐Villegas, Jorge A.; Orozco‐Segovia, Alma; Sánchez‐Coronado, María Esther; Pisanty, Irene

doi:10.1007/s11258-012-0049-x

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…The basaltic fragmented rock presents low water retention and high evaporation rates that contribute to an edaphic condition of aridity. This condition makes seed germination and plant recruitment difficult (Martínez-Villegas et al ., 2012; Mendoza-Hernández, et al ., 2013).…”

Section: Methodsmentioning

confidence: 99%

“…In response to this invasion, different strategies were adopted to recover the disturbed areas. One of the strategies involved the creation of a restoration programme, part of which has involved different studies of the germination of native species (Soberón et al ., 1991; González-Zertuche et al ., 2002; Martínez-Villegas et al ., 2012; Mendoza-Hernández et al ., 2013).…”

Section: Introductionmentioning

confidence: 99%

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Priming effects on seed germination of two perennial herb species in a disturbed lava field in central Mexico

et al. 2018

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Priming has proved to enhance seed germination, but most of the research dealing with this topic has been carried out with cultivated species. The potential applications that this process has on wild species, which can be useful for restoration, are usually overlooked. This study analyses the germination response after natural priming and hydropriming of Penstemon roseus and Castilleja tenuiflora, two perennial herbs growing in a protected area known as ‘Parque Ecológico de la Ciudad de México’. Photoblastism was evaluated for both species. Seeds were exposed to a hydration/dehydration cycle and then placed in germination chambers to determine responses to hydropriming. To identify the effects of natural priming, seeds were buried in natural conditions and then recovered every two months and placed in germination chambers. Germination percentages and rates were then quantified. Both species proved to have permeable seed coats. Penstemon roseus seeds are positive photoblastic whereas C. tenuiflora seeds are indifferent to light. Priming methods increased C. tenuiflora germination rates, but they did not affect germination capacity. For P. roseus, priming methods did not improve germination rates, and germination capacity of recovered seeds decreased after the rainy season, suggesting that P. roseus forms a short-term, transient, seed bank. The germination strategies of these two species allow them to occupy suitable microsites for germination and establishment. These responses can be helpful in developing restoration programmes based on the accelerated establishment of native and characteristic successional species.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Priming effects on seed germination of two perennial herb species in a disturbed lava field in central Mexico

et al. 2018

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“…T. stans is a tree tolerant to water stress, as are W. urens, Buddleia cordata, Dodonea viscosa, and Sedum oxypetalum in which the favourable effect of natural priming has been studied. As most of the pioneer species, all these species form permanent and transient seed banks (Gonz alez-Zertuche et al, 2001;Martínez-Villegas et al, 2012;Benítez-Rodríguez et al, 2014). In contrast, C. megalantha grows primarily in sites with greater humidity, where rapid germination might be expected and seed viability is quickly lost in natural conditions.…”

Section: Discussionmentioning

confidence: 99%

Priming effects on seed germination in Tecoma stans (Bignoniaceae) and Cordia megalantha (Boraginaceae), two tropical deciduous tree species

et al. 2014

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“…In particular, the seeds of species from ecosystems with a clear seasonality highly respond to this treatment (Martínez-Villegas et al 2012, Benítez-Rodríguez et al 2014. Germination performance improvement could positively impact the success of restoration programs due to a rapid recruitment of seedlings, and ensuring higher survival of plants (González-Zertuche et al 2000, González-Zertuche et al 2002.…”

Section: Author Contributionsmentioning

confidence: 99%

Mobilization and synthesis of seed storage and LEA proteins during natural priming of Buddleja cordata and Opuntia tomentosa

et al. 2018

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Background: In crop plants, the induction of seed storage protein mobilization and synthesis of LEA family proteins has been extensively described.Question: Natural priming promotes mobilization and synthesis of seed storage and LEA proteins in wild plants?Species studied: Buddleja cordata and Opuntia tomentosa. Study site: Reserva Ecológica del Pedregal de San Angel (REPSA). Methods: Natural priming treatments were applied to B. cordata and O. tomentosa seeds during one and six months respectively. Phosphorylated proteins fractions were obtained by affinity chromatography from control and treated seeds. Differences in protein pattern between control and treated seeds were determined by electrophoresis and the treated seed proteins were identified by LS/LS/MALDITOF. Results:The phosphorylated fraction of B. cordata treated seeds presented two proteins that were absent in the control protein fraction. These two proteins were identified as two different 11S globulins. The phosphorylated fraction of O. tomentosa treated seeds also presented two proteins that were absent in the control protein fraction. These two proteins were identified as a 12S globulin and a LEA protein. Conclusion:Seeds are subjected to changes in soil water content during their permanence in soil; this natural priming process promotes mobilization and synthesis of storage and LEA proteins that are involved in stress resistance.Key words: Buddleja cordata, natural priming, Opuntia tomentosa, seed proteins. ResumenAntecedentes: La inducción de la movilización y síntesis de proteínas de reserva y de proteínas de la familia LEA en respuesta al acondicionamiento es un proceso ampliamente descrito en plantas cultivadas.Preguntas: ¿El acondicionamiento natural promueve la movilización y síntesis de las proteínas de reserva y LEA en plantas silvestres?Especies: Buddleja cordata y Opuntia tomentosa. Métodos: Se aplicó el tratamiento de acondicionamiento natural a las semillas de B. cordata y O. tomentosa durante 1 y 6 meses respectivamente. La fracción de proteínas fosforiladas se obtuvo por medio de una cromatografía de afinidad de las semillas control y tratadas. Las diferencias en el patrón proteico entre semillas control y tratadas se determinaron por medio de una electroforesis y las proteínas de las semillas tratadas fueron identificadas por LS/LS/MALDITOF. Resultados:En las semillas tratadas de B. cordata se detectaron dos proteínas identificadas como 11S globulinas y en las semillas tratadas de O. tomentosa se detectaron dos proteínas correspondientes a una 12S globulina y una proteína LEA. Conclusiones:Durante su estancia en el suelo, las semillas están sujetas a cambios en el contenido de agua del suelo y este proceso de acondicionamiento natural promueve la movilización y síntesis de proteínas de reserva y LEA en las semillas, involucradas en la resistencia a estrés.Palabras clave: Acondicionamiento natural, Buddleja cordata, Opuntia tomentosa, proteínas de la semilla. Botanical Sciences (1): 76-83, 2018This is an open access article ...

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Germination of Sedum oxypetalum (Crassulaceae) in a primary lava-field shrubland

Cited by 6 publications

References 14 publications

Priming effects on seed germination of two perennial herb species in a disturbed lava field in central Mexico

Priming effects on seed germination of two perennial herb species in a disturbed lava field in central Mexico

Priming effects on seed germination in Tecoma stans (Bignoniaceae) and Cordia megalantha (Boraginaceae), two tropical deciduous tree species

Mobilization and synthesis of seed storage and LEA proteins during natural priming of Buddleja cordata and Opuntia tomentosa

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