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Thermogenesis in male cones of four cycad species
- Source :
- Theoretical and Experimental Plant Physiology. 31:287-293
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- Temperature of sporophylls from excised male cones of three species from the Zamiaceae family (Ceratozamia miqueliana, Zamia fairchildiana, and Zamia pumila) and from one species from the Cycadaceae family (Cycas siamensis) was recorded over several days in an environmental chamber. Each species exhibited a different temperature profile. C. miqueliana and Z. fairchildiana were highly thermogenic, whereas C. siamensis and Z. pumila were weakly thermogenic. In C. miqueliana, the temperature of one sporophyll rose to 10 °C above ambient while other sporophylls on the same cone only reached temperatures of 0–3 °C above ambient. Temperature rates among the different cones varied between ≈ 0.01 and 0.09 ∆ °C/h. Temperature profiles of sporophylls of Z. fairchildiana and C. siamensis were reported for the first time. Studies of thermogenesis of single sporophylls in a controlled environment provide accurate temperature measurements. Furthermore, sporophylls can be exposed to different environments and thus improve our understanding of the mechanism of thermogenesis in vivo.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Ceratozamia miqueliana
Zamia fairchildiana
Cycas siamensis
Zamiaceae
Plant Science
Biology
biology.organism_classification
01 natural sciences
03 medical and health sciences
030104 developmental biology
Botany
Sporophyll
Agronomy and Crop Science
Cycad
010606 plant biology & botany
Conifer cone
Zamia pumila
Subjects
Details
- ISSN :
- 21970025
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Theoretical and Experimental Plant Physiology
- Accession number :
- edsair.doi...........ba6ff557357c3510cdd795aa76e28344
- Full Text :
- https://doi.org/10.1007/s40626-018-0137-y