• Castellano
  • English
  • Valenciá
Página de inicio de ReDivia
Página de la Generalitat ValenciáPágina de IVIA
View Item 
  •   ReDivia Home
  • 1.- Investigación
  • 1.1.- Artículos de revista académica
  • View Item
  •   ReDivia Home
  • 1.- Investigación
  • 1.1.- Artículos de revista académica
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Influence of temperature on the progamic phase in Citrus

View/Open
Open 2019_Montalt_Influence.pdf (1.312Mb)
Export
untranslatedRefworks
URI
http://hdl.handle.net/20.500.11939/6304
DOI
10.1016/j.envexpbot.2019.103806
Derechos de acceso
openAccess
Metadata
Show full item record
Author
Montalt, Rafael; Cuenca, José; Vives, María C.; Navarro, Luis; Ollitrault, Patrick; Aleza, Pablo
Date
2019
Cita bibliográfica
Montalt, R., Cuenca, J., Vives, M. C., Navarro, L., Ollitrault, P., & Aleza, P. (2019). Influence of temperature on the progamic phase in Citrus. Environmental and Experimental Botany, 166.
Abstract
Temperature in the progamic phase is critical for the success of plant sexual reproduction, and new knowledge is needed to optimise breeding programmes to obtain new varieties that adapt to a climate change scenario. Using three male donors and one female recipient in the genus Citrus, we evaluated the effect of four temperature regimes on each process in the progamic phase. An innovative method based on microscopic observations of cross sections from pollinated pistils collected daily allowed a comprehensive analysis of pollen tube growth (dynamics and kinetics) along the pistil. Pollen grain germination and stigmatic receptivity were evaluated directly on the stigma, which offers more accurate information than previously reported in vitro experiments. Our results showed that warm temperatures reduce the time needed by pollen tubes to reach ovules and accelerate pistil degeneration, while cold temperatures produce the opposite effects. Interestingly, we observed both pollen grain germination and pollen tube growth at 10 degrees C, which have not been observed in previous studies in citrus. At this temperature, the differences observed in both pollen grain germination and pollen tube growth for different genotypes reflect the adaptation of their sporophytic generation to low temperatures which would enable gametophytic screening to be used as a tool to select better adapted genotypes to different temperature conditions. The differences observed in the growth rates between pollen tubes in each genotype-temperature combination provide an opportunity to explore additional gametophytic selection in this reproductive phase. The capacity to respond to temperature changes in the progamic phase to ensure mating can be useful for breeding programs that focus on obtaining better adapted populations to different temperature conditions.
Collections
  • 1.1.- Artículos de revista académica

Browse

All of ReDiviaCommunities & CollectionsBy Issue DateAuthorsTitlesSubjetcsCategoriesIVIA CentersThis CollectionBy Issue DateAuthorsTitlesSubjetcsCategoriesIVIA Centers

My Account

LoginRegister

Statistics

View Usage Statistics

Of interest

IVIA Open Access PolicyIntellectual property and copyrightAutoarchiveFrequently Asked Questions

Indexers

Recolectauntranslated

El contenido de este sitio está bajo una licencia Creative Commons - No comercial - Sin Obra Derivada (by-nc-nd), salvo que se indique lo contrario.