Article
Biodiversity Conservation
Zhaoguo Wang, Chuankuan Wang
Summary: This study investigated the interactive effects of elevated temperature and drought on plant carbon metabolism and biomass. The results showed that elevated temperature had no significant impact on leaf photosynthesis, but accelerated respiration under well-watered conditions. Drought had a negative effect on plant biomass, and elevated temperature exacerbated this effect. These findings contribute to our understanding of climate change impacts.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Cell Biology
Shun-Ling Tan, Xing Huang, Wei-Qi Li, Shi-Bao Zhang, Wei Huang
Summary: The study reveals that elevated atmospheric CO2 can mitigate PSI photoinhibition under fluctuating light by facilitating rapid oxidation of PSI and activating more electron acceptors.
Article
Plant Sciences
Siyeon Byeon, Wookyung Song, Minjee Park, Sukyung Kim, Seohyun Kim, HoonTaek Lee, Jihyeon Jeon, Kunhyo Kim, Minsu Lee, Hyemin Lim, Sim-Hee Han, Changyoung Oh, Hyun Seok Kim
Summary: The down-regulation of leaf N and Rubisco under elevated CO2 levels is accompanied by an increase in NSC, particularly in the upper canopy. Different canopy positions of plants show varying responses to CO2 concentrations, with Rubisco showing a negative correlation with NSC to some extent. The increase in chlorophyll content supports the down-regulation of Rubisco, leading to a reduction in photosynthetic N content under elevated CO2 conditions.
JOURNAL OF PLANT PHYSIOLOGY
(2022)
Article
Forestry
Siyeon Byeon, Kunhyo Kim, Jeonghyun Hong, Seohyun Kim, Sukyung Kim, Chanoh Park, Daun Ryu, Sim-Hee Han, Changyoung Oh, Hyun Seok Kim
Summary: In elevated CO2 conditions, the leaf nitrogen concentration of Fraxinus rhynchophylla seedlings was not reduced by nonstructural carbohydrate accumulation, suggesting a potential link with increased photosynthetic N-use efficiency. Contrary to expectations, leaf NSC decreased under elevated CO2, while stem nitrogen concentrations increased, indicating a complex response of different plant organs to elevated CO2 and nitrogen availability.
Article
Plant Sciences
Milena Maria Tomaz de Oliveira, Shuhua Lu, Udi Zurgil, Eran Raveh, Noemi Tel-Zur
Summary: Grafting can enhance the heat tolerance of Hylocereus plants, with grafted and self-grafted plants showing better performance under heat stress and during the recovery period. Self-grafted plants performed better than non-grafted plants throughout the trial. This study supports grafting as a strategy for coping with stress induced by extremely high temperatures and suggests further investigations into the technique for maintaining crop productivity in a warming world.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Janaina da Silva Fortirer, Adriana Grandis, Debora Pagliuso, Camila de Toledo Castanho, Marcos Silveira Buckeridge
Summary: This study compared CO2 experiments in Brazil and found that trees and herbs have different responses to increased CO2 concentration. Young trees tend to allocate carbon for organ development, while herbs increase water use efficiency.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Siyeon Byeon, Wookyung Song, Minjee Park, Sukyung Kim, Seohyun Kim, HoonTaek Lee, Jihyeon Jeon, Kunhyo Kim, Minsu Lee, Hyemin Lim, Sim-Hee Han, ChangYoung Oh, Hyun Seok Kim
Summary: This study revealed that the down-regulation of photosynthesis is mainly caused by the dilution of nitrogen due to an increase in nonstructural carbohydrates, rather than progressive nitrogen limitation. Different plant species exhibit varying levels of flexibility in N allocation against changes in CO2 concentration.
JOURNAL OF PLANT PHYSIOLOGY
(2021)
Review
Plant Sciences
Christine H. Foyer, Guy Hanke
Summary: ROS like singlet oxygen, superoxide, and hydrogen peroxide serve as markers of living cells and are produced abundantly during oxygenic photosynthesis. These ROS act as signals within chloroplasts, influencing cellular processes and redox signaling pathways. The challenge lies in understanding the organized delivery of regulated ROS from the photosynthetic electron transport chain to transmit redox signals from the environment to the nucleus, with stromal carbohydrate metabolism also playing a key role in chloroplast signaling pathways.
Article
Plant Sciences
Xiaoxia Yang, Yufen Che, Veder J. Garcia, Jianqiang Shen, Yutong Zheng, Zhezheng Su, Li Zhu, Sheng Luan, Xin Hou
Summary: Plants have developed various mechanisms to deal with different types of light stress, with the regulation of the electron transport chain being particularly important. The cytochrome b6/f complex plays a crucial role in regulating the electron transport chain under high light conditions. The study reveals that thylakoid-localized cyclophilin 37 (CYP37) maintains the activity of the cytochrome b6/f complex in Arabidopsis. The interaction between CYP37 and photosynthetic electron transfer A (PetA) indicates that CYP37 functions as a maintenance factor of the cytochrome b6/f complex rather than an assembly factor.
Article
Automation & Control Systems
Kibok Lee, Yongsu Han
Summary: This article introduces a new maximum torque per ampere control strategy for induction motors, aimed at improving system efficiency by minimizing stator current amplitude. The method does not require rotor mechanical speed measurement and is robust to parameter variations, also offering an online machine parameter compensation method.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Plant Sciences
Z. F. Rakhmankulova, E. V. Shuyskaya, M. Yu. Prokofieva
Summary: An elevated concentration of CO2 had significant impacts on the growth rate and physiological activities of the C-4 halophyte Kochia prostrata, particularly affecting the protein ratio between Rubisco and PEPc, leading to a shortened time required to reach the maximum oxidation level of PS I.
RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
(2021)
Article
Plant Sciences
Hui Min Olivia Oung, Roma Mukhopadhyay, Vaclav Svoboda, Dana Charuvi, Ziv Reich, Helmut Kirchhoff
Summary: The study found that in the dehydration process of the resurrection plant Craterostigma pumilum, older plants degrade specific subunits of the photosynthetic apparatus, while younger plants increase photoprotective mechanisms to maintain the ability to replace damaged subunits.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Tapio Lempiainen, Eevi Rintamaki, Eva-Mari Aro, Mikko Tikkanen
Summary: Photosynthetic light reactions require strict regulation under dynamic environmental conditions. Depending on environmental constraints, photoinhibition of either Photosystem II (PSII) or Photosystem I (PSI) occurs frequently. Repair of photodamaged PSI is very slow compared to that of PSII, leading to a functional imbalance between the two photosystems. In this study, we investigated the acclimation of photosynthesis to PSI-limited conditions, both in the short-term and long-term, after PSI-specific photoinhibition treatment. We found that short-term acclimation mechanisms were induced immediately after inhibition, while longer-term acclimation involved changes in the stromal redox system and increased abundance of ATP synthase and Cytochrome b6f. Acclimation to PSI-limited conditions restored the CO2 assimilation capacity of plants without major PSI repair. These findings demonstrate that plants efficiently acclimate to changes in the photosynthetic apparatus, which is crucial for their adaptation to adverse environmental conditions.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Chemistry, Physical
Kenji Mishima, Naoki Kano
Summary: In this study, the concept of contribution factor of the first kind (CFFK) was applied to the original Marcus electron-transfer (ET) rate theory. Simple formulas were derived to estimate the relative contributions of ten physical and chemical parameters in the Marcus ET rate formula. The application of this theory to different reaction systems revealed its usefulness in quantitatively identifying major and minor factors affecting the rate.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Biochemistry & Molecular Biology
Masahiko Taniguchi, Jonathan S. Lindsey
Summary: This study compiled spectra for 150 members of chlorophyll compounds, creating a database containing absorption spectra and fluorescence spectra, facilitating comparisons and quantitative calculations.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2021)
Article
Plant Sciences
Sulaiman Sani Kankara, Mohd H. Ibrahim, Muskhazli Mustafa, Rusea Go
SOUTH AFRICAN JOURNAL OF BOTANY
(2015)
Article
Integrative & Complementary Medicine
Ali Ghasemzadeh, Hawa Z. E. Jaafar, Ehsan Karimi, Mohd Hafiz Ibrahim
BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE
(2012)
Article
Biochemistry & Molecular Biology
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar, Asmah Rahmat, Zaharah Abdul Rahman
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2012)
Article
Biochemistry & Molecular Biology
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2012)
Article
Biochemistry & Molecular Biology
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar, Ehsan Karimi, Ali Ghasemzadeh
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2012)
Article
Plant Sciences
M. H. Ibrahim, H. Z. E. Jaafar
JOURNAL OF PLANT NUTRITION
(2013)
Article
Biochemistry & Molecular Biology
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar
Article
Biochemistry & Molecular Biology
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar
Article
Biochemistry & Molecular Biology
Hawa Z. E. Jaafar, Mohd Hafiz Ibrahim, Nur Farhana Mohamad Fakri
Article
Biochemistry & Molecular Biology
Hawa Z. E. Jaafar, Mohd Hafiz Ibrahim, Ehsan Karimi
Article
Biochemistry & Molecular Biology
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar
Article
Biochemistry & Molecular Biology
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar, Ehsan Karimi, Ali Ghasemzadeh
Article
Biochemistry & Molecular Biology
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar
Article
Biochemistry & Molecular Biology
Nurul Amalina Mohd Zain, Mohd Razi Ismail, Maziah Mahmood, Adam Puteh, Mohd Hafiz Ibrahim
Article
Multidisciplinary Sciences
Mohd Hafiz Ibrahim, Hawa Z. E. Jaafar, Ehsan Karimi, Ali Ghasemzadeh
SCIENTIFIC WORLD JOURNAL
(2014)