Article
Biochemistry & Molecular Biology
Junyan Xie, Lihua Wang, Huiqiong Zheng
Summary: Understanding how spaceflight affects plant flowering is crucial for long-term human space exploration. Recent space experiments showed that flowering initiation in plants was delayed by about 20 days in space compared to the control group on the ground, and gene expression levels were altered.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Julien Venail, Paolo Henrique da Silva Santos, Joao Ricardo Manechini, Leonardo Cardosos Alves, Maximiliano Scarpari, Thais Falcao, Elisson Romanel, Michael Brito, Renato Vicentini, Lucia Pinto, Stephen Derek Jackson
Summary: Sugarcane is an important economic crop, but its flowering negatively affects yields and the molecular mechanisms controlling flowering are not well understood. The study identified FT-like genes in the sugarcane gene family that play important roles in floral induction.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Hannah Kinmonth-Schultz, Anna Lewandowska-Sabat, Takato Imaizumi, Joy K. Ward, Odd Arne Rognli, Siri Fjellheim
Summary: In Arabidopsis thaliana, the genes CONSTANS (CO) and FLOWERING LOCUS C (FLC) play crucial roles in perceiving photoperiod and vernalization, and regulate FLOWERING LOCUS T (FT) to affect flowering time. Research has shown that FT is only expressed at low FLC levels, and the interactions among these three genes can influence flowering time in genetically distinct accessions of Arabidopsis.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Rebecca Pieper, Filipa Tome, Artem Pankin, Maria von Korff
Summary: FT-like genes play a crucial role in regulating flowering time in angiosperm plants. In barley, the HvFT4 gene specifically delays flowering time and suppresses reproductive development, impacting spikelet formation and grain yield. Understanding the genetic basis of FT-like genes can lead to novel breeding strategies for improving barley productivity.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Qi Wang, Guang-Ling Wang, Shu-Yuan Song, Ya-Nan Zhao, Shan Lu, Fei Zhou
Summary: Floral transition is regulated by multiple pathways, and the OR protein negatively regulates flowering by repressing the expression of key flowering genes, independent of vernalization or GA-dependent pathways.
JOURNAL OF PLANT PHYSIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Yanli Chen, Liping Zhang, Haiyan Zhang, Ligang Chen, Diqiu Yu
Summary: ERF1 plays a crucial role in floral initiation in Arabidopsis by regulating the transcription of the FT gene, acting as a negative modulator of flowering-time control in the ethylene signaling pathway.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2021)
Article
Plant Sciences
Xiaorui Xu, Jingya Xu, Chen Yuan, Qianqian Chen, Qinggang Liu, Xuming Wang, Cheng Qin
Summary: BBX17, a member of the B-box (BBX) family, acts as a repressor of floral transition under long-day conditions. It interacts with CONSTANS (CO) and represses its ability to control FT expression, leading to delayed flowering phenotype in plants overexpressing BBX17. Additionally, the degradation of BBX17 is regulated by light and requires COP1 and 26S proteasome, making it a key factor in controlling flowering in Arabidopsis thaliana.
PLANT AND CELL PHYSIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Jingya Xu, Yuzhen Zhang, Hongjia Ren, Runyi Yu, Chen Yuan, Yikai Hu, Rumeng Xu, Xuming Wang, Cheng Qin
Summary: Voltage-dependent anion channels (VDACs) are crucial proteins in mitochondria, with AtVDAC1 playing a role in the floral transition and being widely expressed in Arabidopsis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Fangfang Cai, Changsheng Shao, Yanping Zhang, Gehui Shi, Zhiru Bao, Manzhu Bao, Jiaqi Zhang
Summary: The FD gene in Arabidopsis plays a role in inducing flowering by interacting with the FT gene. Similarly, two FT homologs in Platanus acerifolia, PaFT and PaFTL, are involved in diverse developmental processes. The closely related FD homologs, PaFDL1 and PaFDL2, were found to have maximal expression levels during floral transition and undergo post-transcriptional alternative splicing. Overexpressing different transcript forms in tobacco resulted in accelerated floral initiation and abnormal flowers, suggesting a role for the PaFDL proteins in floral development.
Article
Plant Sciences
Leonard Gol, Einar B. Haraldsson, Maria von Korff
Summary: The photoperiod response gene Ppd-H1 interacts with drought stress signals to modulate spike development in barley. Wild-type Ppd-H1 allele can mitigate the negative effects of drought on barley growth and spike development. The genetic differences in developmental response to drought are correlated with the differential down-regulation of flowering promotors in barley.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Review
Plant Sciences
Santiago Nicolas Freytes, Micaela Canelo, Pablo D. Cerdan
Summary: In seasonal flowering of plants, a complex network of genes and proteins regulates the formation of floral meristems, ensuring flower production without compromising the function of the shoot apical meristem.
CURRENT OPINION IN PLANT BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Xiaolin Zeng, Xinchen Lv, Rui Liu, Hang He, Shiqi Liang, Lixian Chen, Fan Zhang, Liu Chen, Yuehui He, Jiamu Du
Summary: The transcription factor CONSTANS (CO) forms a head-to-tail oligomeric configuration via its B-boxes to mediate the activation of florigen FLOWERING LOCUS T (FT) in long days. The multimerization of CO is crucial for its functionality.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2022)
Article
Plant Sciences
Fei-Hong Yan, Li-Ping Zhang, Fang Cheng, Dong-Mei Yu, Jin-Yong Hu
Summary: In this study, we investigated the Arabidopsis natural variation in flowering time in response to nitrate fluctuation, revealing accession- and photoperiod-specific flowering responses. The variation in flowering time was found to be correlated with the expression of floral integrators and key hub genes in relevant pathways. Our results shed light on the molecular genetic mechanisms regulating flowering time variation in response to nitrate availability.
Review
Biochemistry & Molecular Biology
Hiroshi Takagi, Andrew K. Hempton, Takato Imaizumi
Summary: The timing of flowering is important for sexual reproduction, crop yield, biomass and lifespan. The mechanisms of flowering are conserved in angiosperms, and understanding the regulation of the FLOWERING LOCUS T (FT) gene is crucial. Many transcriptional regulators influence FT expression, but the coordination of their control on the spatiotemporal expression patterns of FT requires further investigation.
PLANT COMMUNICATIONS
(2023)
Review
Multidisciplinary Sciences
Gareth Steed, Dora Cano Ramirez, Matthew A. Hannah, Alex A. R. Webb
Summary: Human health relies on a plentiful supply of nutritious food derived from crop plants, which have evolved circadian clocks to modulate most plant physiology. Modifying circadian rhythms in crops shows promise for increasing production and reducing inputs.
Article
Engineering, Aerospace
Hui Qiong Zheng, Fei Han, Jie Le
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2015)
Article
Engineering, Aerospace
Yue Zhang, Hui Qiong Zheng
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2015)
Article
Engineering, Aerospace
Mian Long, Yuren Wang, Huiqiong Zheng, Peng Shang, Enkui Duan, Dongyuan Lu
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2015)
Article
Engineering, Aerospace
Hui Qiong Zheng
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2018)
Article
Plant Sciences
Ning Wei, Chao Tan, Bin Qi, Yue Zhang, Guoxin Xu, Huiqiong Zheng
JOURNAL OF EXPERIMENTAL BOTANY
(2010)
Article
Engineering, Aerospace
W. R. Hu, J. F. Zhao, M. Long, X. W. Zhang, Q. S. Liu, M. Y. Hou, Q. Kang, Y. R. Wang, S. H. Xu, W. J. Kong, H. Zhang, S. F. Wang, Y. Q. Sun, H. Y. Hang, Y. P. Huang, W. M. Cai, Y. Zhao, J. W. Dai, H. Q. Zheng, E. K. Duan, J. F. Wang
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2014)
Article
Engineering, Aerospace
Lihua Wang, Fei Han, Hui Qiong Zheng
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2018)
Article
Plant Sciences
Bin Qi, Huiqiong Zheng
Article
Plant Sciences
Huiqiong Zheng, L. Andrew Staehelin
Article
Plant Sciences
Yue Zhang, Lihua Wang, Junyan Xie, Huiqiong Zheng
Article
Biochemical Research Methods
Chao Tan, Hui Wang, Yue Zhang, Bin Qi, Guoxin Xu, Huiqiong Zheng
Article
Plant Sciences
Guo Xin Xu, Chao Tan, Xiao Jing Wei, Xiao Yan Gao, Hui Qiong Zheng
Article
Plant Sciences
Jie Shen, Guoxin Xu, Hui Qiong Zheng
Article
Biology
Yuanyuan Wu, Junyan Xie, Lihua Wang, Huiqiong Zheng
Article
Engineering, Aerospace
A. I. Krikunova, A. D. Cheshko, V. V. Krivets
Summary: Fire safety is crucial for the development of efficient and safe energy systems for space objects. This paper focuses on studying the influence of gravity on combustion processes and analyzes the dynamics of inverted conical methane-air flame under external acoustic excitation. The results show that at high excitation frequencies, the intensity of vortex generation is similar to that observed in experiments with normal gravity, indicating the dominance of acoustic mechanism. Additionally, at an external excitation frequency of 240 Hz, significant growth in shear vortex diameters and increased amplitude of perpendicular oscillations of flame branches were observed, indicating the most intensive large scale instability of flow.
Article
Engineering, Aerospace
Liya Huang, Mingquan Gong, Jiarui Zhang, Kun Liang, He Yang
Summary: Metallized gel propellants with exceptional stability and remarkable shear-thinning properties were successfully synthesized by utilizing cooperative hydrogen bonding between polymer octanoyl cellulose and the small Thixatrol ST molecule.
Article
Engineering, Aerospace
Clemence Poirier, Michelle Hermes, Marco Aliberti
Summary: This paper examines the role of space-based data in European climate policies and assesses the barriers to the use of space technology in climate policymaking in European countries. The research findings indicate that while satellite data is crucial for scientific research and climate policies, the role of space is not accurately reflected in European climate policies.
Article
Engineering, Aerospace
Yan-mei Zhou, Ji-ping Wu, Wei Huang, Gautam Choubey
Summary: This study investigates the combustion performance of sinusoidal pulsed jets in supersonic flows using numerical simulations. It is found that the pulsed jets can significantly improve combustion efficiency.
Article
Engineering, Aerospace
Wang Zhao, Shujun Tan, Yiliang Guo
Summary: This study proposes an adaptive Pogo active suppression controller design method that utilizes measured acceleration as feedback. The eigenspace transformation theory is employed to design dimensional reduced models for observer and adaptive controller, effectively addressing the issues of model parameter uncertainty and time-varying parameters. Simulation analysis of a certain type of rocket demonstrates the effectiveness of the proposed method.
Article
Engineering, Aerospace
A. V. Nebylov, V. A. Nebylov
Summary: This article discusses the safety issues of astronauts during the landing process and investigates how rescuers can effectively carry out rescue missions. The article also takes into account the special maritime conditions of the Vostochny cosmodrome.
Article
Engineering, Aerospace
Pietro Davide Maddio, Rosario Sinatra, Alberto Meschini, Riccardo Rigato, Marco Lapi, Davide Scarozza, Alessandro Cammarata
Summary: This study aims to develop a versatile cable net generation algorithm for designing offset cable nets in parabolic reflectors. The study proposes a methodology that leverages quasi-geodesic curves and introduces two types of these curves. The study also presents various solutions for different cable net layouts and introduces a quality index based on an equilateral triangle cable net.
Article
Engineering, Aerospace
Nahum Melamed, Tom Heinsheimer
Summary: Traditional methods of asteroid trajectory modification rely on impact or nuclear detonation, while centrifugal propulsion offers an alternative approach. The centrifuge system lands on the asteroid and gradually adjusts the trajectory using momentum transfer. This method allows for flexibility in operation parameters and has the potential to be used in planetary defense and other space missions.
Article
Engineering, Aerospace
Andrew Barth, Ou Ma
Summary: As humans continue to explore the surfaces of the Moon and Mars, the use of distributed heterogeneous robot teams can increase the chances of success by utilizing the complementary capabilities and synergy of the team members. Effective cooperation and collaboration between the members of a robot team is crucial, but defining a metric for effective cooperation is challenging. This paper presents a method for determining reward criteria that can be used for training robot swarm through reinforcement learning techniques. The trained robot team exhibits high success rates and cooperative behavior in test environments, demonstrating the robustness and scalability of the training strategies.
Article
Engineering, Aerospace
Kaijie Zhu, Qiquan Quan, Dewei Tang, Yachao Dong, Kaiyi Wang, Bo Tang, Qi Wu, Zongquan Deng
Summary: This study proposes a deployable Mars quadcopter for air patrol and sampling missions. By describing its structure, avionics architecture, and autonomous flight control method, it provides a feasible framework for future Mars flight sampling missions.
Article
Engineering, Aerospace
Avishai Melamed, Adi Rao, Sarah Kreps, Erika Palmer
Article
Engineering, Aerospace
Colin Hunter, Avinkrishnan Vijayachandran, Anthony M. Waas
Summary: Deployable structures inspired by origami have gained significant prominence in space applications. Recent advancements in multi-material additive manufacturing have opened new possibilities for the fabrication of monolithic structures. This paper presents a novel framework for designing deployable structures using viscoelastic hinges incorporated into rigid plates. Experimental results demonstrate the effectiveness and feasibility of these hinge designs in real-world applications.
Article
Engineering, Aerospace
Aleksander V. Efremov, Mikhail S. Tiaglik, Aleksey S. Tiaglik, Iliyas Kh Irgaleev, Tatyana V. Voronka
Summary: Theoretical and experimental studies were conducted to determine the best kind of information presented on a predictive display for the highest accuracy in space mission execution, while considering reduced propellant consumption.
Article
Engineering, Aerospace
Fuwen Liang, Long Miao, Feng Tian, Jiahui Song, Ningfei Wang, Xiao Hou
Summary: This study investigates the influence of deployment friction on the dynamic characteristics of nonconductive space tether through experimental measurement and numerical simulation. The results show that deployment friction significantly limits the uncontrolled tether deployment, while increasing the initial deployment velocity and satellite effective mass, as well as decreasing orbital altitude, can enhance the deployment capability and dynamic stability. In addition, an optimal matching relationship between tether length and satellite total mass is proposed, which is of substantial importance for the design of nonconductive space tether systems.
Article
Engineering, Aerospace
Amirah R. Algethami, Colin R. McInnes, Matteo Ceriotti
Summary: This paper utilizes the Hill's approximation model to manipulate the relative motion of two asteroids by three impulses, resulting in their bound binary motion in Earth's orbit. The feasibility of this strategy is demonstrated, and potential applications for parking small captured near-Earth asteroids in Earth's orbit are discussed.