Article
Agronomy
Tahereh Ashrostaghi, Sasan Aliniaeifard, Aida Shomali, Shiva Azizinia, Jahangir Abbasi Koohpalekani, Moein Moosavi-Nezhad, Nazim S. Gruda
Summary: Low temperatures have a significant impact on the geographic distribution of warm-season crops such as cucumber. This study investigates the effects of light intensity on photosynthesis and biochemical traits under low temperature stress. The results show that high photon flux densities exacerbate the negative effects of low temperature on cucumber seedlings.
Article
Plant Sciences
Aida Shomali, Sasan Aliniaeifard, Mohammad Mohammadian, Mahmoud Lotfi, Hazem M. Kalaji
Summary: High light intensity has a significant impact on the photosynthetic apparatus of tomatoes. Different genotypes show varying responses, with tolerant genotypes exhibiting reduced photoinhibitory quenching compared to sensitive genotypes. Quantum yield components also shift under high light, favoring the quantum yield of non-photochemical quenching and basal energy loss, while reducing the quantum yield of photosystem II. These findings provide insights into the mechanisms of high light tolerance in tomatoes and can aid in the development of resilient crops for variable light conditions.
PHYSIOLOGIA PLANTARUM
(2023)
Article
Plant Sciences
Andrej Filacek, Marek Zivcak, Lorenzo Ferroni, Maria Barboricova, Kristina Gasparovic, Xinghong Yang, Marco Landi, Marian Brestic
Summary: The study found that high temperature significantly reduced the photosynthetic assimilation rate due to non-stomatal (biochemical) limitation of photosynthetic processes; chlorophyll fluorescence only showed a mild decrease in the quantum efficiency of photosystem II, indicating mainly reversible heat stress effects; heat stress led to a decrease in the number of active PS II reaction centers (RC/ABS) and overall activity of PSII (PIabs) in all genotypes, while PS I (parameter psi(REo)) was negatively influenced by heat stress only in the non-acclimated variant.
Article
Plant Sciences
Jianfei Zhou, Xiaodong Jiang, Evgenios Agathokleous, Xiaojing Lu, Zaiqiang Yang, Ruiying Li
Summary: High relative humidity and high temperature due to climate change can severely affect the growth and photosynthetic performance of chrysanthemums. This study found that there is an interactive effect between temperature and relative humidity on chrysanthemum photosynthesis, with temperature having a greater impact than relative humidity.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Alissar Cheaib, Lamiaa M. Mahmoud, Christopher Vincent, Nabil Killiny, Manjul Dutt
Summary: This study investigates the impact of introducing Vitis vinifera mybA1 (VvmybA1) in 'Hamlin' sweet orange trees. Results show that the transgenic plants display intense purple color due to the accumulation of anthocyanins in leaf epidermal cells. Although there is a slight reduction in photosynthetic performance, other parameters remain unaffected.
Article
Environmental Sciences
Sabit Mohammad Aslam, Priyanka Pradeep Patil, Imre Vass, Milan Szabo
Summary: Symbiodiniaceae live in symbiosis with corals. Increased global temperature affects algae, disrupting symbiosis and causing coral bleaching. Heat tolerance is determined by the species harbored by coral hosts. A study on different strains of Symbiodiniaceae revealed a strain-specific fluorescence wave phenomenon related to cyclic electron transport, potentially important for heat stress tolerance.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Andrea Romero-Reyes, Sergio G. Hernandez-Leon, Lilia Leyva-Carrillo, Gloria Yepiz-Plascencia, Matthew P. Reynolds, Matthew J. Paul, Sigrid Heuer, Elisa M. Valenzuela-Soto
Summary: High temperatures hinder high-yield production in bread wheat by negatively impacting photosynthesis. This study aimed to investigate the photosynthetic performance of 10 bread wheat genotypes under high temperatures. The results showed a significant reduction in yield under heat stress, but no impact on chlorophyll content and light-dependent reactions. Three genotypes exhibited heat tolerance and could be potential candidates for breeding heat-tolerant bread wheat in this region.
BIOCHEMICAL JOURNAL
(2023)
Article
Agronomy
Paulina A. Rajewicz, Chao Zhang, Jon Atherton, Shari Van Wittenberghe, Anu Riikonen, Troy Magney, Beatriz Fernandez-Marin, Jose Ignacio Garcia Plazaola, Albert Porcar-Castell
Summary: Chlorophyll fluorescence can be used as a proxy for photosynthesis in boreal forests. This study measured the spectral chlorophyll fluorescence in leaves of three dominant evergreen species in the boreal ecosystem and analyzed the correlations with other traits to understand the spatial and temporal variation in chlorophyll fluorescence. The findings suggest that the diversity of species and light environments within an ecosystem generate baseline variation in leaf spectral chlorophyll fluorescence and contrasting seasonal photosynthetic acclimation patterns.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Agricultural Engineering
Xiaobin Wang, Xiaohua Shi, Runlong Zhang, Kaijing Zhang, Lingmei Shao, Tong Xu, Danqing Li, Dong Zhang, Jiaping Zhang, Yiping Xia
Summary: As global temperatures rise, heat stress has a severe impact on the growth and development of herbaceous peony. This study found that heat-tolerant cultivars exhibit less damage and a delayed stay-green duration under high-temperature stress, attributed to their enhanced antioxidant enzyme activity and heat acclimation.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Plant Sciences
Supranee Santanoo, Kochaphan Vongcharoen, Poramate Banterng, Nimitr Vorasoot, Sanun Jogloy, Sittiruk Roytrakul, Piyada Theerakulpisut
Summary: Temperature is a critical factor affecting cassava metabolism and growth. This study investigated the effects of short-term exposure to extreme cool and hot temperatures on photosynthesis, biochemical changes, and proteomics in two cassava cultivars. The results showed that cassava was more sensitive to low temperature, with reductions in stomatal conductance and net photosynthesis rate. Under cold stress, a greater proportion of electrons was transported via alternative pathways to protect chloroplasts from oxidative damage. Proteomics analysis identified differentially expressed proteins related to heat and cold stress. Overall, the cultivar Rayong 9 displayed higher photosynthesis and better ROS control under cold stress.
Article
Plant Sciences
Massimo Bertamini, Michele Faralli, Claudio Varotto, Maria Stella Grando, Luca Cappellin
Summary: This study found that under high temperature conditions, the emission of leaf monoterpenes significantly increased in the INRA809 grape variety, while there was no significant change in the SMA130 variety. Additionally, when leaf temperature exceeded 30 degrees Celsius, INRA809 maintained higher photosynthetic rates and stomatal conductance values. This suggests that monoterpenes emission plays a significant role in heat tolerance of grapes under high temperatures.
Article
Biochemistry & Molecular Biology
Qi-Shi, Shi-Bao Zhang, Ji-Hua Wang, Wei Huang
Summary: The study showed that pre-illumination under high light conditions accelerates the activation rate of cyclic electron flow (CEF) and reduces the over-reduction of Photosystem I (PSI) under fluctuating light, by facilitating the electron sink downstream of PSI.
Article
Agronomy
Dominika Radzikowska-Kujawska, Paula John, Tomasz Piechota, Marcin Nowicki, Przemyslaw Lukasz Kowalczewski
Summary: In order to prevent further degradation of the environment, restrictions on the use of plant protection products and fertilizers are being strengthened annually. This study evaluated the effectiveness of four commercial biostimulants in improving the tolerance of winter wheat to drought stress. Among the biostimulants tested, those based on bacterial strains had the strongest positive effects on wheat plants' drought tolerance. These treatments led to higher CO2 assimilation, reduced transpiration values, and increased stomatal conductance under drought conditions, indicating improved water use efficiency. The use of these bacterial biostimulants also resulted in less damage to the photosynthetic apparatus and higher grain yield compared to other treatments. These findings suggest the potential of these biostimulants in mitigating drought-related yield losses in wheat.
Article
Plant Sciences
Eric Opoku Mensah, Richard Asare, Philippe Vaast, Christiana A. Amoatey, Bo Markussen, Kwadwo Owusu, Bismark Kwesi Asitoakor, Anders Raebild
Summary: The study found that heat stress negatively affected photosynthesis in cocoa plants, while the benefits of shade in alleviating heat stress may be limited. Measurements revealed that heat treatments resulted in decreased concentrations of chlorophyll and reduced leaf biomass.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Agronomy
Chung- Chen, Kuan-Hung Lin, Meng-Yuan Huang, Chih-Kai Yang, Yu-Hsiu Lin, Mei-Li Hsueh, Li-Hua Lee, Ching-Wen Wang
Summary: SC and NT are two different modern orchard management systems in Taiwan for sustainable citrus orchard development. SC showed higher physiological parameters like Rd, Qy, LCP, Amax, and Fv/Fm compared to NT, especially in fall and winter. Pn, Gs, ETR, NPQ, and Fv/Fm values were higher in spring and summer compared to fall and winter, with positive correlations between Pn and Gs under both NT and SC in all seasons, and significant negative relationships between ETR and NPQ under NT in fall and winter.
Article
Agronomy
Brian Collins, Ullah Najeeb, Qunying Luo, Daniel K. Y. Tan
Summary: For the first time, the SUFI-2 method was used to calibrate the phenology module of the APSIM-wheat model for spring wheat cultivars in northeast Australia. Results showed that adjusting sowing times can significantly shorten crop cycles and increase grain yields, with photoperiod and vernalisation sensitivities being major contributors to uncertainties in the simulated values.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2022)
Article
Agronomy
Anowarul Bokshi, Rebecca J. Thistlethwaite, Edward D. Chaplin, Erasmus Kirii, Richard M. Trethowan, Daniel K. Y. Tan
Summary: High temperatures and increasing CO2 concentrations pose a major threat to global wheat production. This research evaluated Australian wheat cultivars for heat tolerance and identified physiological traits associated with adaptation to high temperatures. The findings provide valuable candidates for breeding and selecting wheat cultivars that can better adapt to changing climate conditions.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2022)
Article
Agronomy
Chinaza B. Onwuchekwa-Henry, Floris Van Ogtrop, Rose Roche, Daniel K. Y. Tan
Summary: This study assessed the effectiveness of Canopeo and GreenSeeker-NDVI tools for in-season estimation of rice yield in Cambodia. The Canopeo index-weather model was found to be a flexible and effective tool for predicting rice yield and managing agricultural resources.
Article
Ecology
Zitong Li, Shiming Liu, Warren Conaty, Qian-Hao Zhu, Philippe Moncuquet, Warwick Stiller, Iain Wilson
Summary: Genomic selection has become an important breeding technology for crop improvement. This study focuses on cotton and aims to develop a GP-based breeding system to enhance efficiency. By genotyping 1385 breeding lines using a high-density SNP chip, the study found that combining genomic and pedigree information resulted in the highest prediction accuracies.
Article
Biochemistry & Molecular Biology
Li Chen, Enhui Shen, Yunlei Zhao, Hongmei Wang, Iain Wilson, Qian-Hao Zhu
Summary: This study utilized publicly available RNA-seq datasets to identify the conservativeness and divergence of lincRNAs in different cotton species and their role in responding to biotic stresses. The study provided new insights into the relationship between the conservativeness and Vd responsiveness of lincRNAs and identified candidate lincRNAs for further functional characterization in disease response.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Genetics & Heredity
Xiaochen Sun, Wenli Wu, Yanfang Yang, Iain Wilson, Fenjuan Shao, Deyou Qiu
Summary: This study provides a comprehensive analysis of m(6)A pathway genes in Poplar 84K, including gene structures, promoter analysis, and expression profiles. The results show tissue-specific expression patterns of m(6)A pathway genes in leaves, xylem, phloem, and roots. Additionally, the transcription factor LBD15 regulates the expression of several m(6)A pathway genes. These findings contribute to the understanding of the functions and epigenetic regulation mechanisms of these genes in Poplar 84K.
Article
Plant Sciences
Qian-Hao Zhu, Shuangxia Jin, Yuman Yuan, Qing Liu, Xianlong Zhang, Iain Wilson
Summary: This study successfully generated a collection of cotton miR482 mutants using CRISPR/Cas9 technology, resulting in lower disease index in response to pathogen infection. The study provides a valuable resource for the cotton community to uncover the role of miR482-NLR module(s) in the interaction between cotton and different pathogens.
Editorial Material
Plant Sciences
Linghe Zeng, Iain Wilson, Fred M. Bourland
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Yingying Shao, Detian Mu, Limei Pan, Iain W. Wilson, Yajie Zheng, Lina Zhu, Zhiguo Lu, Lingyun Wan, Jine Fu, Shugen Wei, Lisha Song, Deyou Qiu, Qi Tang
Summary: An optimized protocol for the isolation, purification, and transient gene expression of Uncaria rhynchophylla protoplasts was developed, resulting in a highly efficient protoplast-based transient expression system with a transfection rate of 71%.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Syed Riaz Ahmed, Zeba Ali, Iram Ijaz, Zafran Khan, Nimra Gul, Soha Pervaiz, Hesham F. Alharby, Daniel K. Y. Tan, Muhammad Sayyam Tariq, Maria Ghaffar, Amir Bibi, Khalid Rehman Hakeem
Summary: Climate change has impacted the global food supply chain, causing serious concerns for food security. This study aimed to assess the effects of environmental factors, cutting levels, and spacing on quinoa biomass and quality. The results showed significant interactions between cutting, genotype, and year, as well as cutting, space, and genotype for most morphological traits. Cutting level 3 and spacing level 2 were found to be the most effective in achieving maximum biomass and quality traits.
Article
Agronomy
Jie Zhang, Daniel K. Y. Tan, Hiba Shaghaleh, Tingting Chang, Yousef Alhaj Hamoud
Summary: High temperature significantly affects wheat production. This study evaluated the response and recovery of four wheat cultivars under heat stress and found significant differences in adaptability among the cultivars. Berkut and PBW343 showed stronger adaptability to heat stress.
Article
Biochemistry & Molecular Biology
Detian Mu, Yingying Shao, Jialong He, Lina Zhu, Deyou Qiu, Iain W. Wilson, Yao Zhang, Limei Pan, Yu Zhou, Ying Lu, Qi Tang
Summary: This study reports the stability of reference genes in Uncaria rhynchophylla and their potential role in alkaloid production. The researchers evaluated the expression stability of ten candidate reference genes under stress-related experimental treatments and found that S-adenosylmethionine decarboxylase (SAM) exhibited higher stability. Using SAM as a reference gene, they examined the expression patterns of key alkaloid biosynthetic genes and a transcription factor under stress treatments. The results indicate that the transcription factor WRKY1 may coordinate the expression of tryptophan decarboxylase (TDC), providing a potential method for enhancing alkaloid production in the future through synthetic biology.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Yao Zhang, Detian Mu, Liya Wang, Xujun Wang, Iain W. Wilson, Wenqiang Chen, Jinghan Wang, Zhaoying Liu, Deyou Qiu, Qi Tang
Summary: Reverse transcription quantitative polymerase chain reaction (RT-qPCR) was used to analyze Gelsemium elegans leaf tissue and identify suitable reference genes for data normalization. The optimal stable reference genes varied among the different treatments and at least two reference genes were required for accurate quantification. The expression patterns of 15 genes related to gelsenicine biosynthesis pathway were determined using RT-qPCR and three of these genes showed a strong correlation with the amount of gelsenicine measured. This research is crucial for future molecular analyses of G. elegans, a medically important plant species.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Biotechnology & Applied Microbiology
William Crawford, Daniel K. Y. Tan, Floris Van Ogtrop
Summary: This study assessed the research available on Agave planting density and suggested an optimum planting density for the highest dry aboveground productivity using PRISMA. The meta-analysis found that the optimal planting density of Agave is approximately 2,600 plants ha(-1), which provides optimal dry aboveground biomass of 28.8 Mg ha(-1) yr(-1).
FRONTIERS IN CHEMICAL ENGINEERING
(2022)
Review
Horticulture
Viola Devasirvatham, Daniel K. Y. Tan
Summary: Australia's sweet cherry industry is thriving, with increasing production and revenue from both local and export markets. However, challenges such as self-incompatibility and the influence of environmental factors on plant traits need to be addressed. By understanding these traits and employing advanced breeding techniques, such as haplotype breeding, the efficiency and quality of sweet cherry breeding can be improved.
