Pollen Development at High Temperature: From Acclimation to Collapse

Pollen Development at High Temperature: From Acclimation to Collapse.

Pollen Development at High Temperature: From Acclimation to Collapse1[OPEN]

The seeds and fruits derived from the sexual reproduction of flowering plants constitute the major part of the human diet. Our capacity to generate sufficient crop yield is increasingly compromised by human population expansion, competition for land use, biodiversity loss, and global climate change. Hot days and heat waves are predicted to increase in frequency and intensity in many temperate r...

Cardiorespiratory collapse at high temperature in swimming adult sockeye salmon

Elevated summer river temperatures are associated with high in-river mortality in adult sockeye salmon (Oncorhynchus nerka) during their once-in-a-lifetime spawning migration up the Fraser River (British Columbia, Canada). However, the mechanisms underlying the decrease in whole-animal performance and cardiorespiratory collapse above optimal temperatures for aerobic scope (T opt) remain elusive...

Photosynthetic Acclimation to Temperature in the Desert

The response of photosynthetic electron transport and light-harvesting efficiency to high temperatures was studied in the desert shrub Larrea divaricata Cav. Plants were grown at day/night temperatures of 20/15, 32/25, or 45/33 C in rough approximation of natural seasonal temperature variations. The process of acclimation to high temperatures involves an enhancement of the stability of the inte...

The Development of Expertise : The Journey From Acclimation to Proficiency

Without question, the educational research community has garnered much from past decades of expert/novice theory and research. Framed largely by artificial intelligence and information-processing theory, those traditional research programs initially took shape in the 1970s and 1980s around the problem-solving performance of experts. The primary goal was to determine the characteristics and acti...