Article
Plant Sciences
Aya Saitoh, Tomoyuki Takase, Hiroshi Abe, Masaaki Watahiki, Yuki Hirakawa, Tomohiro Kiyosue
Summary: ZTL induces the expression of genes related to auxin synthesis, thereby promoting hypocotyl elongation in Arabidopsis thaliana. Genetic analysis revealed that overexpression of PIF4 and YUC8 can restore the suppressed hypocotyl length in the ztl mutants.
PLANT CELL REPORTS
(2021)
Article
Genetics & Heredity
Yulin Xi, Yan Yang, Jie Yang, Xing Zhang, Yajie Pan, Hongwei Guo
Summary: In this study, the researchers identified a direct link between the light and auxin signaling pathways mediated by the auxin transcriptional repressor IAA3 and light-controlled PIF transcription factors in Arabidopsis. They found that IAA3 interacts with PIFs to regulate hypocotyl growth, showing a novel layer of the regulatory mechanism by which light and auxin signals are integrated.
Article
Plant Sciences
Mohammed M. Mira, Sam Day, Shimaa Ibrahim, Robert D. Hill, Claudio Stasolla
Summary: During the light induction of somatic embryogenesis, phyB-Pfr inhibits Phytoglobin 2, which leads to the elevation of nitric oxide (NO). NO then depresses Phytochrome Interacting Factor 4 (PIF4), relieving its inhibition on embryogenesis through auxin.
Article
Biochemistry & Molecular Biology
Monica Rodriguez-Bolanos, Tania Martinez, Saray Juarez, Stella Quiroz, Andrea Dominguez, Adriana Garay-Arroyo, Maria de la Paz Sanchez, Elena R. Alvarez-Buylla, Berenice Garcia-Ponce
Summary: Light and photoperiod regulate the floral transition in plants. CONSTANS is a transcription factor that is posttranslational regulated by phytochrome B in the morning and stabilized by PHYA and cryptochromes 1/2 in the evening. CO induces FT expression, which travels to the apical meristem and binds to FD to regulate flowering genes. Our research shows that light and PHYB positively regulate XAANTAL1 and other flowering genes in the shoot apices. Furthermore, XAL1 functions independently of FD or PIF4 to induce flowering at higher temperatures, even under long days. This leads us to propose that light and temperature influence the floral network at the meristem level partially independent of leaf-generated signals.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Agronomy
Mohammad Aslam, Beenish Fakher, Mohammad Arif Ashraf, Yan Cheng, Bingrui Wang, Yuan Qin
Summary: Cold stress significantly affects plant development and crop yield. Temperate plants have the ability to acclimate to low temperatures, while plants from tropical origins are more sensitive to cold stress. Plants have evolved various mechanisms to sense and respond to low-temperature stress, with epigenetic control playing a crucial role.
Article
Food Science & Technology
Tingting Guo, Jianzhao Li, Meiling Guo, Qi Yang, Xiaonan Dai, Xuqiang Qiao, Zhizhong Song, Changping Tian, Yanju Li, Hang Ge, Jieshan Cheng, Meixia Liang
Summary: Low-temperature storage is effective in maintaining the firmness of peach fruit by inhibiting the degradation of pectin. The expression of PpCBFs is related to fruit firmness, with higher levels at low temperature storage. Low temperature storage also inhibits the activities of pectin-degradation-related enzymes. These findings suggest that activating PpCBFs during storage can prevent pectin degradation and maintain fruit firmness.
JOURNAL OF FOOD SCIENCE
(2023)
Article
Plant Sciences
Jiachen Zhao, Guangqiong Yang, Lu Jiang, Shilong Zhang, Langxi Miao, Peng Xu, Huiru Chen, Li Chen, Zhilei Mao, Tongtong Guo, Shuang Kou, Hong-Quan Yang, Wenxiu Wang
Summary: Phytochromes A and B inhibit brassinosteroid signaling by stabilizing BIN2 and promoting BES1 phosphorylation, providing a new regulatory mechanism for coordinating light and BR signaling pathways in photomorphogenesis.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Construction & Building Technology
Ali Ghamari, Chanachai Thongchom, Ramadhansyah Putra Jaya, Thandiwe Sithole
Summary: Concentrically braced frame (CBF) system is susceptible to buckling, but using I-shaped steel dampers can prevent buckling and increase energy absorption. Increasing the thickness of web or flange can increase damper stiffness, but also shear capacity. This study proposes the use of low yield point for the web plate to compensate for this limitation and improves damper behavior in terms of energy absorption, stiffness, and strength. Results show that both LYP damper and conventional A36 damper have stable hysteresis loops without degradation, but the A36 damper is more affected by the flange plate in terms of shear strength.
Article
Genetics & Heredity
Miaomiao Liu, Guang Yang, Wenlong Zhou, Xianbang Wang, Qiang Han, Jiange Wang, Guihua Huang
Summary: This study investigated the gene expression of teak seedlings under low-temperature stress using RNA-seq and WGCNA analyses. The results revealed that low-temperature acclimation can enhance the resistance of teak to cold stress, and identified several genes and modules associated with the response to cold stress.
Article
Plant Sciences
M. Arif Ashraf, Abidur Rahman
Summary: This review focuses on understanding the effects of temperature on plants, particularly low-temperature stress on crop productivity. While progress has been made in understanding the low-temperature response mechanisms in plants, research has mainly focused on above-ground parts rather than roots or the whole plant. The review examines the current understanding of plant growth response mechanisms mediated by low temperatures and discusses recent advancements in cell biology studies that may lead to the discovery of alternative regulators for cold stress response pathways.
Review
Biochemistry & Molecular Biology
Lijuan Qi, Yiting Shi, William Terzaghi, Shuhua Yang, Jigang Li
Summary: Light and temperature are crucial environmental factors that affect plant growth and development. Plants have evolved mechanisms to sense and respond to changes in light and temperature. Recent studies have shown that the photoreceptor phytochrome B functions as a thermosensor, further highlighting the close association between light and temperature signaling pathways in plants.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Zhaoqing Song, Yueqin Heng, Yeting Bian, Yuntao Xiao, Jiujie Liu, Xianhai Zhao, Yan Jiang, Xing Wang Deng, Dongqing Xu
Summary: This study reveals that BBX11 physically interacts with both phyB and PIF4, and negatively regulates PIF4 accumulation and its biochemical activity, consequently affecting the expression of PIF4-controlled genes and promoting photomorphogenesis under prolonged red light.
Article
Plant Sciences
David S. Favero, Alice Lambolez, Keiko Sugimoto
Summary: The growth of hypocotyls and petioles in plants is regulated by a complex network of molecular signals, which convey both external environmental cues and internal signals such as the circadian clock. The signaling pathways involved in regulating elongation of aerial plant organs, particularly in response to light, the circadian clock, and temperature, converge on the BAP module consisting of different transcription factors. Additionally, key positive regulators of growth, such as COP1 and SPA E3 ubiquitin ligase proteins, are also influenced by environmental cues.
Article
Computer Science, Software Engineering
Chongchong Yu, Shunan Li, Wenbin Feng, Tong Zheng, Shu Liu
Summary: Visible-infrared image fusion can reveal features and combine information, enhancing scene detection. In low-light conditions, the proposed infrared and visible image fusion architecture based on self- and cross-attention (SACA-Fusion) outperforms traditional methods by using a transformer-based fusion network. It extracts long-range dependencies and improves space recovery of fused images.
Article
Plant Sciences
Kohei Kitawaki, Ryota Mihara, Saori Kamimura, Akito Sato, Mari Ushiyama, Yasuko Ito-Inaba, Takehito Inaba
Summary: Chemical compounds that affect intracellular processes have been identified in germinated seedlings, but using mature plants for chemical screening would advance our understanding of environmental responses. This study developed a high-throughput screening method using single leaves of mature plants to identify small molecules that affect cold-regulated gene expression. Derivatives of 1,4-naphthoquinone were found to specifically inhibit COR gene expression and upstream signaling processes in response to low temperature.
