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您的检索式：作者名="felipe yon"
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| 1 | Circadian clock component, LHY, tells a plant when to respond photosynthetically to light in nature显示文摘The circadian clock is known to increase plant growth and fitness,and is thought to prepare plants for photosynthesis at dawn and dusk;whether this happens in nature was unknown. We transformed the native tobacco,Nicotiana attenuata to silence two core clock components,NaLHY(irLHY) and NaTOC_1(irTOC_1). We characterized growth and light-and dark-adapted photosynthetic rates(A_c) throughout a 24 h day in empty vector-transformed(EV),irLHY,and irTOC_1 plants in the field,and in NaPhy Aand NaPhy B1-silenced plants in the glasshouse. The growth rates of irLHY plants were lower than those of EV plants in the field. While irLHY plants reduced A_c earlier at dusk,no differences between irLHY and EV plants were observed at dawn in the field. irLHY,but not EV plants,responded tolight in the night by rapidly increasing A_c. Under controlled conditions,EV plants rapidly increased A_c in the day compared to dark-adapted plants at night;irLHY plants lost these time-dependent responses. The role of NaLHY in gating photosynthesis is independent of the light-dependent reactions and red light perceived by NaPhy A,but not NaPhyB_1. In summary,the circadian clock allows plants not to respond photosynthetically to light at night by anticipating and gating red light-mediated in native tobacco. | Youngsung Joo Variluska Fragoso Felipe Yon Ian T. Baldwin Sang-Gyu Kim | 2017 | Journal of Integrative Plant Biology2017，59，8： | 3 |
| 2 | Fitness consequences of altering floral circadian oscillations for Nicotiana attenuata显示文摘Ecological interactions between flowers and pollinators are all about timing.Flower opening/closing and scent emissions are largely synchronized with pollinator activity,and a circadian clock regulates these rhythms.However,whether the circadian clock increases a plant's reproductive success by regulating these floral rhythms remains untested.Flowers of Nicotiana attenuata,a wild tobacco,diurnally and rhythmically open,emit scent and move vertically through a 140° arc to interact with nocturnal hawkmoths.We tethered flowers to evaluate the importance of flower positions for Manduca sexta-mediated pollinations;flower position dramatically influenced pollination.We examined the pollination success of phase-shifted flowers,silenced in circadian clock genes,NaZTL,NaLHY,and NaTOCi,by RNAi.Circadian rhythms in N.attenuata flowers are responsible for altered seed set from outcrossed pollen. | Felipe Yon Danny Kessler Youngsung Joo Lucas Cortes Llorca Sang-Gyu Kim Ian T. Baldwin | 2017 | Journal of Integrative Plant Biology2017，59，3： | 1 |
| 3 | Fitness consequences of a clock pollinator filter in Nicotiana attenuata flowers in nature显示文摘Nicotiana attenuata flowers, diurnally open,emit scents and move vertically to interact with nocturnal hawkmoth and day-active hummingbird pollinators. To examine the fitness consequences of these floral rhythms, we conducted pollination trials in the plant's native habitat with phase-shifted flowers of plants silenced in circadian clock genes. The results revealed that some pollination benefits observed under glasshouse conditions were not reproduced under natural field conditions. Floral arrhythmicity increased pollination success by hummingbirds, while reducing those by hawkmoths in the field. Thus, floral circadian rhythms may influence a plant's fitness by filtering pollinators leading to altered seed set from outcrossed pollen. | felipe yon danny kessler youngsung joo sang-gyu kim ian t.baldwin | 2017 | Journal of Integrative Plant Biology2017，59，11： | 1 |
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