Article
Plant Sciences
Jianwen Song, Lele Shang, Xin Wang, Yali Xing, Wei Xu, Yuyang Zhang, Taotao Wang, Hanxia Li, Junhong Zhang, Zhibiao Ye
Summary: This study identified a novel gene, MAPK11, which plays a critical role in seed germination of tomato by regulating ABA signaling and SnRKs phosphorylation. Understanding this mechanism provides a new perspective on seed germination and has implications for agricultural production efficiency.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Olena Zamora, Sebastian Schulze, Tamar Azoulay-Shemer, Helen Parik, Jaanika Unt, Mikael Brosche, Julian Schroeder, Dmitry Yarmolinsky, Hannes Kollist
Summary: ABA, CO2, and light are major regulators of rapid guard cell signaling in Arabidopsis and tomato plants, while JA and SA play only minor roles in the overall plant stomatal response to environmental cues.
Article
Plant Sciences
Yuki Hayashi, Yohei Takahashi, Kohei Fukatsu, Yasuomi Tada, Koji Takahashi, Keiko Kuwata, Takamasa Suzuki, Toshinori Kinoshita
Summary: In guard-cell protoplasts (GCPs) from Vicia faba, an unknown 61 kDa protein is phosphorylated by ABA-activated protein kinase, which binds to 14-3-3 protein in a phosphorylation-dependent manner. ABA-dependent phosphorylated proteins known as AKSs were identified in Arabidopsis thaliana GCPs, but the identity of the 61 kDa protein in Vicia GCPs as an AKS was uncertain. Mass spectrometry analysis revealed several AKS isoforms (VfAKSs) in V. faba, with the 61 kDa protein being identified as VfAKS1, showing the importance of phosphorylation in response to ABA. Co-immunoprecipitation studies also identified interactions between 14-3-3 protein and orthologs of AtABCG40 and CHC1 in guard cells.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Mauro G. Santos, Phillip A. Davey, Tanja A. Hofmann, Anne Borland, James Hartwell, Tracy Lawson
Summary: The stomatal responses to light intensity and CO2 concentration were found to differ between CAM and C-3 species, with CAM stomata showing unique behaviors in response to darkness and C-3 signals. Guard cell metabolism and mesophyll signals were identified as key factors influencing stomatal responses in both CAM and C-3 plants.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Reginaldo de Oliveira, Frederico Rocha Rodrigues Alves, Emilaine da Rocha Prado, Leticia Danielle Longuini Gomes, Luciano Freschi, Lucas Aparecido Gaion, Rogerio Falleiros Carvalho
Summary: Blue light exposure delays tomato seed germination by decreasing endosperm-degrading hydrolase activities, which is regulated by CRY1a-dependent signaling and the hormonal balance between ABA and GA. Mutants deficient in ABA (notabilis) and displaying a GA-constitutive response (procera) showed higher germination speed index (GSI) compared to the wild type, indicating the importance of ABA/GA hormonal balance in reducing the inhibitory effects of blue light on tomato germination. Functional CRY1a is required for blue light-dependent germination, as the germination percentage of the cry1a mutant was higher in the dark but the GSI was lower under blue light exposure. Blue light inhibits the expression of GA-biosynthetic genes and induces GA-deactivating and ABA-biosynthetic genes, with the magnitude of the influence dependent on CRY1a.
Article
Plant Sciences
Minchae Kim, Soongon Jeong, Chae Woo Lim, Sung Chul Lee
Summary: Protein phosphorylation by kinase is crucial for adapting to drought stress conditions, and CaDIMK1 has been identified as a positive modulator of drought tolerance and ABA signal transduction in pepper plants.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Xiaolin Zheng, Shihong Fei, Shajun Wang, Yong He, Zhujun Zhu, Yuanyuan Liu
Summary: This study investigates the inhibitory effect of ABA on plant hypocotyl elongation and suggests the involvement of SAUR-PP2C.D functional modules.
Article
Plant Sciences
Liyuan Wang, Tingting Li, Nan Liu, Xuncheng Liu
Summary: In this study, 18 AHL family genes were identified in the tomato genome, and their involvement in plant development and stress response was investigated. Six AHL members were found to be localized in the nucleus, indicating their importance in early fruit development. The clade A members showed greater responsiveness to heat, drought, cold, and salt stresses compared to clade B members, suggesting their major role in abiotic stress response. Overexpression of SlAHL1 and SlAHL7 in Arabidopsis increased sensitivity to ABA during seed germination and seedling stages, and inhibited seed germination while promoting primary root elongation under salt and drought stresses. This study highlights the importance of clade A SlAHL genes in abiotic stress response.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Plant Sciences
Po-Kai Hsu, Guillaume Dubeaux, Yohei Takahashi, Julian I. Schroeder
Summary: In recent years, significant progress has been made in understanding the regulatory mechanisms of ABA signal transduction, the physiological importance of basal ABA signaling in stomatal regulation, and the interactions of ABA with other stomatal signaling pathways, which provide important insights for enhancing crop drought tolerance and water-use efficiency.
Article
Plant Sciences
Yangyang Li, Yang Liu, Zhenhua Gao, Feng Wang, Tao Xu, Mingfang Qi, Yufeng Liu, Tianlai Li
Summary: This study reveals that small RNAs, specifically miR162, play a crucial role in regulating gene expression in response to low temperature stress in tomato plants. miR162 is involved in the abscisic acid (ABA) signaling pathway and regulates the expression of DICER-LIKE1 (DCL1) and its targets. This research provides a new direction for studying plant abiotic stress resistance.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Cade N. Kane, Scott A. M. McAdam
Summary: Increases in leaf ABA levels do not drive natural leaf senescence in autumn, but can enhance senescence rates. The importance of ABA as a driver of leaf senescence in winter deciduous trees is investigated, and it is found that ABA may augment leaf senescence but is not essential for this annual process.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Zijian Xu, Jiachun Wang, Yongbo Ma, Fan Wang, Jingrong Wang, Yong Zhang, Xiaohui Hu
Summary: Low temperature and ABA are the main factors inducing anthocyanin synthesis in tomato seedlings. SlAREB1, a transcription factor, is involved in the low-temperature response of tomato seedlings through the ABA-dependent pathway. SlAREB1 enhances anthocyanin accumulation by regulating the expression of anthocyanin-related genes, specifically under low-temperature conditions. The direct interaction between SlAREB1 and the promoters of key structural genes involved in anthocyanin biosynthesis suggests that SlAREB1 plays a crucial role in regulating anthocyanin biosynthesis in tomato seedlings.
Article
Plant Sciences
Sohail M. Karimi, Matthias Freund, Brittney M. Wager, Michael Knoblauch, Joerg Fromm, Heike M. Mueller, Peter Ache, Markus Krischke, Martin J. Mueller, Tobias Mueller, Marcus Dittrich, Christoph-Martin Geilfus, Ahmed H. Alfarhan, Rainer Hedrich, Rosalia Deeken
Summary: Soil salinity is a global issue impacting plant growth and crop yield, with different plants displaying varying stomatal behavior and gene expression changes under salt stress. Halophytic plants maintain high potassium to sodium ratios and attenuate the ABA signaling pathway in guard cells, making them less sensitive compared to glycophytic plants. Salinity stress and different tolerances are manifested at a single cell level, providing opportunities for manipulating stomatal behavior to enhance plant productivity.
Article
Horticulture
JiaQian Zhou, XiaoYang Zhao, Sen Yang, Cai E. Wu, ZhaoHui Xue, XiaoHong Kou
Summary: Previous study finds that SNAC4 and SNAC9 have opposite effects on carotenoid biosynthesis and softening in tomato fruit ripening. Using an overexpressing system, this study explores the regulatory mechanism of SNAC4/9 in tomato fruit ripening and softening. The results show that the overexpression of SNAC4 and SNAC9 accelerates fruit ripening, promotes ethylene biosynthesis and carotenoid accumulation, but has different effects on ABA content and fruit firmness.
SCIENTIA HORTICULTURAE
(2023)
Article
Multidisciplinary Sciences
Andrzej Kazmierczak, Danuse Tarkowska, Lenka Plackova, Magdalena Doniak, Karel Dolezal
Summary: A study was conducted to explore the hormonal background of kinetin-regulated cell death (RCD) in the cortex of faba bean seedlings. Ethylene, gibberellins, indolic compounds/auxins, and cytokinins were quantified to determine their role in RCD. The results showed that specific pathways involving cytokinins and their receptors play a crucial role in the induction of cell death.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Motoyuki Iida, Toshihiko Takano, Takakazu Matsuura, Izumi C. Mori, Shingo Takagi
JOURNAL OF PLANT RESEARCH
(2018)
Article
Plant Sciences
Lia Ooi, Takakazu Matsuura, Shintaro Munemasa, Yoshiyuki Murata, Maki Katsuhara, Takashi Hirayama, Izumi C. Mori
PLANT CELL AND ENVIRONMENT
(2019)
Article
Plant Sciences
Hiroshi Takagi, Shunsuke Watanabe, Shoma Tanaka, Takakazu Matsuura, Izumi C. Mori, Takashi Hirayama, Hiroshi Shimada, Atsushi Sakamoto
Article
Plant Sciences
Md Sanaullah Biswas, Hidehiro Fukaki, Izumi C. Mori, Kazuha Nakahara, Jun'ichi Mano
Article
Plant Sciences
Choy-Yuen Khew, Izumi C. Mori, Takakazu Matsuura, Takashi Hirayama, Jennifer Ann Harikrishna, Ee-Tiing Lau, Zehnder Jarroop Augustine Mercer, Siaw-San Hwang
JOURNAL OF PLANT RESEARCH
(2020)
Article
Agronomy
Oscar W. Mitalo, Yasuaki Tosab, Sumire Tokiwa, Yuki Kondo, Azimullah Azimi, Yuko Hojo, Takakazu Matsuura, Izumi C. Mori, Ryohei Nakano, Takashi Akagi, Koichiro Ushijima, Yasutaka Kubo
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2019)
Article
Biochemistry & Molecular Biology
Rayhanur Jannat, Takanori Senba, Daichi Muroyama, Misugi Uraji, Mohammad Anowar Hossain, Mohammad Muzahidul Islam, Yoshimasa Nakamura, Shintaro Munemasa, Izumi C. Mori, Yoshiyuki Murata
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
(2020)
Article
Environmental Sciences
Lia Ooi, Keisuke Okazaki, Carlos R. Arias-Barreiro, Lee Yook Heng, Izumi C. Mori
Article
Plant Sciences
Yusuke Kouzai, Minami Shimizu, Komaki Inoue, Yukiko Uehara-Yamaguchi, Kotaro Takahagi, Risa Nakayama, Takakazu Matsuura, Izumi C. Mori, Takashi Hirayama, Sobhy S. H. Abdelsalam, Yoshiteru Noutoshi, Keiichi Mochida
Article
Plant Sciences
Izumi C. Mori, Carlos Raul Arias-Barreiro, Lia Ooi, Nam-Hee Lee, Muhammad Abdus Sobahan, Yoshimasa Nakamura, Yoshihiko Hirai, Yoshiyuki Murata
Summary: This study found that rice roots can take up Cd via apoplastic bypass flow in addition to the symplastic route mediated by membrane-bound mineral transporters. High concentrations of Cd increased apoplastic bypass flow rate in rice seedlings and compromised membrane integrity in the roots. Furthermore, the Cd-induced apoplastic bypass flow and Cd transfer to shoots can be inhibited by polyethyleneglycol and proline.
JOURNAL OF PLANT RESEARCH
(2021)
Article
Plant Sciences
Yoshihiro Hirosawa, Akari Tada, Takakazu Matsuura, Izumi C. Mori, Yoshitoshi Ogura, Tetsuya Hayashi, Susumu Uehara, Yasuko Ito-Inaba, Takehito Inaba
Summary: Plastids are involved in phytohormone metabolism and photosynthesis, but the cooperative regulation of plastid biogenesis by plastid retrograde signals and phytohormones is not well understood. Inhibition of plastid biogenesis led to decreased levels of salicylic acid (SA) and jasmonic acid (JA), while exogenous application of SA restored chlorophyll levels and increased photosynthesis-associated proteins. This suggests a possible link between SA and biogenic plastid signaling in Arabidopsis.
PLANT AND CELL PHYSIOLOGY
(2021)
Article
Plant Sciences
Katsuhiro Shiono, Marina Yoshikawa, Tino Kreszies, Sumiyo Yamada, Yuko Hojo, Takakazu Matsuura, Izumi C. Mori, Lukas Schreiber, Toshihito Yoshioka
Summary: To adapt to waterlogged conditions, wetland plants form a barrier to prevent oxygen loss, with ABA playing a key role in inducing this barrier. ABA promotes suberin lamellae formation in the exodermis of rice, resulting in the formation of an ROL barrier.
Article
Plant Sciences
Takayuki Sasaki, Michiyo Ariyoshi, Yoko Yamamoto, Izumi C. Mori
Summary: In this study, the physiological and electrophysiological properties of ALMT channels in Arabidopsis and tomato were analyzed. The findings suggest that the guard-cell-type ALMT channels are activated by extracellular organic acids and play a role in stomatal closure. This discovery is important for understanding the regulation of stomatal movement.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Agriculture, Multidisciplinary
Izumi C. Mori, Takakazu Matsuura, Masahiro Otao, Lia Ooi, Yasuyo Nishimura, Takashi Hirayama
Summary: Trehalose, a disaccharide, is often applied to crops to increase stress resistance or crop production. However, the physiological effects of exogenously applied trehalose on crops were unclear. This study investigated the effect of foliar trehalose application on style length of solanaceous crops and found that trehalose increased pistil to stamen ratio by increasing style length. Our findings suggest that trehalose application can improve yield in solanaceous crops by suppressing the occurrence of short-styled flowers.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Agronomy
Takakazu Matsuura, Izumi C. Mori, Eiko Himi, Takashi Hirayama
