Article
Plant Sciences
Hsin Huang, Yi-Wei Kuo, Yu-Chen Chuang, Ya-Ping Yang, Li-Min Huang, Mei-Fen Jeng, Wen-Huei Chen, Hong-Hwa Chen
Summary: Orchids are highly diverse plants that interact with pollinators via volatile organic compounds. Scented orchids like Phalaenopsis bellina have specific genes related to floral scent biosynthesis, which show increased expression around blooming time.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Bao-Qiang Zheng, Xiao-Qing Li, Yan Wang
Summary: Orchid flowers have a unique structure with three sepals and three petals, and the lip is formed by one of the petals. The emission of floral scent in orchids is specific and spatially complex. This study investigated the molecular and biochemical mechanisms behind the differing scent emissions from different parts of orchid flowers, using the Cattleya hybrid KOVA as a model. The findings provide insights into the differences in scents between different flower parts and offer information for breeding orchid cultivars with special floral scents.
Article
Plant Sciences
Ya-Lan Chang, Li-Min Huang, Xuan-Zhou Kuo, You-Yi Chen, Shao-Ting Lin, Mei-Fen Jeng, Hsin-Hung Yeh, Wen-Chieh Tsai, Hong-Hwa Chen
Summary: We investigated the role of ABC transporters in the emission of floral scent in terrestrial plants. Through whole-genome identification, we identified 86 ABC subfamily G genes related to terpenoid transport. PbABCG1 and PbABCG2 were selected based on gene expression patterns and correlation analysis. Co-downregulation of PbABCG1 and PbABCG2 led to a decrease in monoterpene emission and an increase in internal monoterpene pools.
Article
Plant Sciences
Chao-Wei Yeh, Hui-Qin Zhong, Yung-Feng Ho, Zhi-Hong Tian, Kai-Wun Yeh
Summary: Plants monitor natural environmental fluctuations to adapt for growth and development, with circadian clock genes regulating daily activities and physiological functions. This study focused on the molecular mechanism of circadian emission of ocimene and linalool compounds in Oncidium Sharry Baby orchid, revealing that terpene synthase expression is coordinated with scent emission under the control of the CIRCADIAN CLOCK ASSOCIATED1 (CCA1) transcription factor. The findings demonstrate that floral scent emission in Onc. Sharry Baby is controlled by CCA1, which up-regulates terpene synthase to affect the circadian emission pattern.
Article
Plant Sciences
Yang Liu, Qin Wang, Farhat Abbas, Yiwei Zhou, Jingjuan He, Yanping Fan, Rangcai Yu
Summary: In this study, the COP1 gene (LoCOP1) was isolated from the petals of Lilium 'Siberia'. The research revealed that LoCOP1 played a crucial negative regulatory role in floral scent production and emission, and interacted with LoMYB1 and LoMYB3. The findings highlighted the regulatory mechanism of LoCOP1 in controlling scent emission in Lilium 'Siberia' through the degradation of transcription factors via the proteasome pathway.
Editorial Material
Ecology
Evgenios Agathokleous, Zhaozhong Feng, Josep Penuelas
Summary: Ozone pollution negatively affects plant-pollinator systems by disrupting floral visual and volatile signals, olfactory perception of volatile communication signals, as well as learning, memory, and behavior of pollinators.
TRENDS IN ECOLOGY & EVOLUTION
(2022)
Article
Physiology
Milena Damulewicz, Kornel Szypulski, Elzbieta Pyza
Summary: Autophagy is a self-degradative process that removes misfolded proteins and damaged organelles, as well as alters cell membrane size and shape. This study demonstrates the importance of autophagy in glial cell functioning and its involvement in regulating circadian structural changes in pacemaker neurons.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Plant Sciences
Bruce M. Rhodes, Hamad Siddiqui, Safina Khan, Paul F. Devlin
Summary: The red-light regulated transcription factors FHY3 and FAR1 play a key role in positively regulating gene expression in the plant circadian clock. However, the fhy3 mutant shows a red light-specific disruption of rhythmicity that is inconsistent with this role. Our findings suggest that FHY3 may interact with HY5 to modulate CCA1 activity, leading to the red-specific circadian phenotype of fhy3.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Environmental Sciences
Ju Wu, Jiayi Long, Haixuan Liu, Guangpeng Sun, Jing Li, Lijuan Xu, Chengyang Xu
Summary: BVOC emissions from leaves and flowers of 14 woody landscape species in northern China were analyzed using dynamic flow enclosure technique with GC-MS. Coniferous species had higher leaf emission rates of monoterpenes, while sampled broad-leaved species had lower emission rates of fatty acid derivatives. Most broad-leaved species had relatively high emission rates of flowers, with Syringa oblata and Syringa reticulata containing large amounts of aldehydes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Biochemistry & Molecular Biology
Zhimin Li, Fengran Gao, Yajing Liu, Salah Fatouh Abou-Elwafa, Junlong Qi, Haibo Pan, Xiaomeng Hu, Zhenzhen Ren, Haixia Zeng, Zhixue Liu, Dongling Zhang, Zhangying Xi, Tianxue Liu, Yanhui Chen, Huihui Su, Shuping Xiong, Lixia Ku
Summary: In this study, it was found that the zmgi2 mutant in maize flowered earlier than the wild type under long day conditions. By using DAP-Seq and RNA-Seq, it was further revealed that ZmGI2 delays flowering by repressing the expression of ZmVOZs, ZmZCN8, and ZmFPF1, and promoting the expression of ZmARR11, ZmDOF, and ZmUBC11. This study provides insights into the potential role of ZmGI2 in regulating the flowering time-dependent photoperiodic pathway.
Article
Plant Sciences
Hyoungsoo Kim, Gilgu Lee, Junyong Song, Sang-Gyu Kim
Summary: Flowers emit volatiles to attract pollinators and protect themselves. Previous studies have focused on the quality and quantity of floral volatiles, while little is known about their emission patterns. This study used optical interferometry to measure the emission frequency of lily flowers and found that they emit volatiles discontinuously.
FRONTIERS IN PLANT SCIENCE
(2022)
Letter
Plant Sciences
James Ronald, Anthony J. Wilkinson, Seth J. Davis
Summary: The sub-nuclear localization of EARLY FLOWERING3 gene responds to changes in ambient temperature.
Article
Biology
Suil Kim, Douglas G. McMahon
Summary: This study reveals that light input to the SCN can change the waveform of molecular clockworks, marking clock advances and delays at simulated dawn and dusk. The changes in waveform seem to be greatest in the ventrolateral SCN, while the effects on period are greatest in the dorsomedial SCN, suggesting spatiotemporally distinct responses within the SCN neural network.
Article
Multidisciplinary Sciences
Altar Sorkac, Yiannis A. Savva, Doruk Savas, Mustafa Talay, Gilad Barnea
Summary: Through experiments involving neuronal inhibition and selective neuronal activation, researchers revealed a four-order circuit for light avoidance in Drosophila larvae, helping to understand the relationship between neural circuits and behavior in fruit flies.
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Tao Li, Rui Wu, Zhixin Liu, Jiajing Wang, Chenxi Guo, Yaping Zhou, George Bawa, Xuwu Sun
Summary: The study suggests that GUN4 may coordinate plant adaptation to changing light conditions by regulating the biological clock, although the direct or indirect effect is still unclear.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)