Article
Multidisciplinary Sciences
Ji Qian, Juan Zhou, Bao Di, Yang Liu, Gang Zhang, Xin Yang
Summary: This study utilized EIT technology to analyze the starch and soluble sugar contents in the stems of three Rosa hybrida cultivars, establishing regression models for estimation. The results indicated that the quadratic regression model was best for soluble sugar content and the logarithmic regression model was best for starch content, providing technical support for using EIT to analyze plant physiological parameters and estimate physiological indexes rapidly. Further validation of the results is required.
SCIENTIFIC REPORTS
(2021)
Article
Horticulture
Pauliina Palonen, Iiris Lettojarvi, Jaana Luoranen, Hanna Ruhanen, Marja Rantanen, Tuuli Haikonen, Sanna Finni
Summary: The study investigated the susceptibility of apple, blackcurrant, and raspberry cultivars with different winter hardiness to deacclimation during warm spells and reacclimation during subsequent cold periods predicted in future climate scenarios. Results showed that the stability of frost hardiness varied among cultivars, but the susceptibility to deacclimation and reacclimation was not related to the dormancy status in these cultivars.
SCIENTIA HORTICULTURAE
(2021)
Article
Plant Sciences
Brent Arnoldussen, Jassim Alhamid, Peipei Wang, Changki Mo, Xiao Zhang, Qin Zhang, Matthew Whiting
Summary: Cold damage is a major concern for fruit crop growers in the U.S. Cellulose nanocrystals (CNCs) can be sprayed onto woody perennial crops to form a thin insulating film around buds, increasing their cold tolerance. This study utilized digital scanning calorimetry (DSC) and scanning electron microscopy (SEM) to investigate the thermodynamic and physical properties of apple and cherry buds treated with CNCs.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Forestry
Johanna Riikonen, Hanna Ruhanen, Jaana Luoranen
Summary: The frequency of warm spells in boreal areas during late fall and winter is expected to increase due to climate change. This study aimed to investigate the effects of warm spells in late fall and winter on the deacclimation of Norway spruce seedlings, their ability to reacclimate during subsequent cold periods, and the impact of short-day treatment in a nursery on their responses to temperature fluctuations during the non-growing season. The results showed that warm spells reduced frost hardiness in needles and increased the probability of bud damage in January and March, but not in October and November. Needles were able to reacclimate from November to January, and buds in early March. Seedlings that received the SD2 treatment retained the ability to reacclimate after a warm spell in March, unlike those in other photoperiod treatments. The timing and use of SD treatment may therefore affect the survival of fall-planted seedlings and seedlings overwintering outdoors in nurseries, particularly in snowless winters.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Plant Sciences
Camilo Villouta, Beth Ann Workmaster, Amaya Atucha
Summary: This study investigated the relationship between freezing damage in terminal buds during ecodormancy and their viability during the subsequent growing season. The models constructed explained the relationship between bud structure damage and growth viability, as well as the seasonal changes in growth viability (GLT(50)) and environmental factors influencing cold hardiness changes. The bud axis was found to be the best candidate for modeling due to easier damage evaluation and explained the resulting growth viability the best.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Chemistry, Multidisciplinary
Marta Joanna Monder
Summary: Climate change affects the growth and flowering of ornamental roses in Central Europe, with a potential for the wider use of climbing roses. The timing of flowering and frost damage are influenced by annual climate variations.
APPLIED SCIENCES-BASEL
(2022)
Article
Geography
Akos Bede-Fazekas, Imelda Somodi
Summary: Plant hardiness zone maps are widely used and easy to interpret, but there are significant uncertainties that can affect their accuracy. A systematic review revealed gaps in communicating uncertainties, particularly related to downscaling and climate variability. To support quantification, tools for visualizing hardiness zones, differences, and uncertainties are presented. A case study in Hungary showed that different sources of uncertainties can result in varying spatial patterns that accumulate and interact. Maps based on continuous extreme minimum temperature are preferred for visualizing uncertainties over plant hardiness zone-based maps.
Article
Forestry
Guillaume Charrier, Thierry Ameglio
Summary: Water content is a crucial variable in plant physiology, and research has shown that soil temperature and evaporative demand significantly affect the water content and dehydration rate of plants. A model was developed to predict the water content during the winter and frost hardiness in walnut trees during spring.
Article
Green & Sustainable Science & Technology
Vladan Ivetic, Marianthi Tsakaldimi, Petros Ganatsas, Ivona Kerkez Jankovic, Jovana Devetakovic
Summary: In order to achieve restoration and reforestation goals in changing environments, it is important to consider the translocation of genotypes and species towards northern and upward directions. Testing the frost hardiness and heat tolerance of Pinus nigra seedlings from different provenances revealed the potential for seed transfer from south to north in the Balkan Peninsula, with seedlings from southern Greek provenances showing better freezing tolerance.
Article
Plant Sciences
Tapani Repo, Dongxia Wu, Heikki Hanninen
Summary: The study showed that while different tree species exhibit variations in their response and speed of frost hardening, the hardening process of all four species took place in a timely manner to adapt to the winter conditions in Central Finland. Further research is needed to investigate whether the three exotic species can tolerate extreme winter conditions.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Biology
Kyungwon Min, Rajeev Arora
Summary: Exogenous application of salicylic acid (SA) has been shown to improve plant tolerance against abiotic stresses, including freezing stress. This study compared the effects of SA application through foliar spray and sub-irrigation on freezing tolerance of spinach seedlings and assessed the duration of the SA-induced effects. The results demonstrated that both foliar spray and sub-irrigation methods enhanced freezing tolerance of the seedlings, with the improvement lasting for 4 days under moderate stress.
Article
Plant Sciences
Marta Joanna Monder
Summary: Climate change affects crop production, biodiversity maintenance, and ornamental plants. The response of once-blooming rambler roses to changing climate conditions, including frost resistance and ornamental value, was examined in a study. Different cultivars showed varying levels of tolerance to frost damage, with some being reintroduced due to milder winters in recent years.
Article
Thermodynamics
Haijun Jeong, Hobin Son, Sungjoon Byun, Seounghwan Hyeon, Kwan-Soo Lee, Dong Rip Kim
Summary: An experimental study was conducted to investigate the phase change on a cryogenic cooling surface under forced convection conditions. Measurements were taken for the mass and surface temperature of frost, as well as the heat flux at the cooling surface. The study explored the heat and mass transfer analogy under cryogenic conditions. By using the modified analogy, the estimated mass differed by up to 8% from the experimentally measured mass under various conditions. The density and thermal conductivity of frost at cryogenic temperatures were derived through regression analysis, and the calculated values differed from the measured values by up to 9% and 11%, respectively. A model was developed based on the presented frost density and thermal conductivity correlations to predict heat and mass transfer and improve thermal performance on the cooling surfaces of various cryogenic devices.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
Huan Song, Yongguang Hu
Summary: A predictive model of frost formation on leaf surface was established in this study, and the evolution process of frost under non-stationary conditions was simulated using Fluent calculations based on leaf surface frosting mechanism. The influence of different surface temperatures, air velocities and humidity on frost amount were deeply investigated during simulation. The results showed that the frost amount increased mainly with decreased surface temperature, and reducing velocity or increasing humidity also had a beneficial effect.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Haijun Jeong, Sungjoon Byun, Dong Rip Kim, Kwan-Soo Lee
Summary: An experiment was conducted to study the frost growth mechanism under ultra-low temperature conditions. It was found that the cooling surface temperature affects the thickness of frost, while the density is less affected. The frosting mechanism depends on the frost surface temperature, which provides guidance for addressing frost-related issues under ultra-low temperature conditions.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Plant Sciences
Jingqiu Xia, Jiawen Liang, Mengmeng Yu, Rui Wang, Chen Sun, Huishan Song, Qinghua Xu, Jing Cang, Yuying Wang, Da Zhang
Summary: The MED complex acts as a bridge to regulate transcription by connecting transcription factors and specific gene promoters. This study demonstrates the important role of MED25 in freezing tolerance in wheat, possibly through its interaction with the jasmonate signaling pathway and cold-responsive genes.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Asier R. Larrinaga, Luis Sampedro, Rafael Zas
Summary: This study investigated the allocation to growth, reproduction, and defence in maritime pine under different resource availability and simulated herbivory treatments. The results showed that fertilization increased tree growth and seed quantity but not seed quality. Needle clipping and methyl-jasmonate treatment increased needle resin and phenol concentrations. Overall, there were complex interactions among the life-history dimensions, suggesting that pairwise approaches are insufficient to unravel these complexities.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Shuang Han, Shuxian Li, Ya Li, Qingchen Zhang, Yuanyuan Xu, Wenjing Wang, Xiao Qin Zhu, Dongli Pei
Summary: The xanthophyll cycle plays a significant role in protecting plants from membrane peroxidation induced by intense light exposure. This study identified 240 differentially expressed genes associated with respiratory chain, lipid metabolism, antioxidant activity, and flavonoid metabolism. The overexpression of the CmBCH1 gene resulted in the upregulation of genes involved in scavenging reactive oxygen species and encoding antioxidants, leading to the accumulation of xanthophyll, zeaxanthin, chlorophylls, and anthocyanins. The study highlighted the potential of BCH1 in regulating the xanthophyll cycle and enhancing tolerance to intense light stress in transgenic plants.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Yuzhu Ding, Hejun Ren, Xinyu Hao, Ruonan Zhang, Jianjun Hao, Jinliang Liu, Hongyu Pan, Yan Wang
Summary: This study demonstrated that co-expressing two exogenous genes, tfdB and bphC, in Arabidopsis thaliana improved the tolerance and removal efficiency of PCB28. Transgenic plants also exhibited increased enzymatic activities under PCB28 stress. The co-expression of tfdB and bphC in A. thaliana resulted in nearly twofold increase in PCB28 removal rates from soil. This research suggests that co-expressing two genes holds great potential for enhancing phytoremediation efficiency and mitigating PCB-induced toxicity stress on plants.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Nosheen Kabir, Sumbal Wahid, Shoaib Ur Rehman, Ghulam Qanmber
Summary: Trichomes are specialized plant structures that protect plants and are regulated by complex gene networks and signaling pathways. Gene expression, cell cycle regulation, and differentiation determine whether cells become trichomes. Transcription factors, epigenetic modifications, and phytohormones play important roles in trichome development. The integration of phytohormonal and transcriptional networks contributes to the diversity and adaptability of trichomes in plants.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Enrique Mateos-Naranjo, Jesus Alberto Perez-Romero, Giacomo Puglielli, Javier Lopez-Jurado, Jennifer Mesa-Marin, Eloisa Pajuelo, Ignacio David Rodriguez-Llorente, Susana Redondo-Gomez
Summary: The impact of multifactorial abiotic stress combinations on plant functional responses remains controversial. The halophyte Salicornia ramosissima showed unique functional responses depending on the specific stress factors involved. Under extreme conditions, there was a more negative impact on plant functional traits, but the presence of beneficial microorganisms, especially in combination with elevated atmospheric CO2 concentration, mitigated these negative effects.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Mengjiao Ruan, Wenliang He, Rui He, Xiangxiang Wang, Jinxin Wei, Yujie Zhu, Ruiling Li, Zhijun Jiang, Xiaofan Na, Xiaomin Wang, Yurong Bi
Summary: The study reveals the important role of AOX2 in Arabidopsis seed germination by regulating ABA signal and ROS homeostasis under salt stress. Additionally, ABI3/ABI4 are essential for salt-induced AOX2 expression.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Ning Li, Peiyao Yu, Yanling Zeng, Jiali Chen, Wenhai Yang, Guannan Qin, Shenxiu Du, Xiao Han, Li-Jun Huang
Summary: In eukaryotic cells, epigenetic modifications of DNA and histones play a crucial role in gene expression regulation. ROXY19, a plant-specific CC-type glutaredoxin, was found to strongly repress a subset of genes regulated by class II TGA factors through its association with the TPL/TPR family. The ectopic expression of ROXY19 in Arabidopsis plants led to hypersensitivity to xenobiotic chemicals due to the silencing of detoxification pathway genes.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Yang Li, Chenyang Feng, Yijing Xing, Meng Li, Xiaoning Wang, Qingjie Du, Huaijuan Xiao, Juanqi Li, Jiqing Wang
Summary: In this study, researchers found that CsNLP1 gene in cucumber plays an important role in nitrogen utilization. The study also revealed the regulation mechanism of CsNLP1 in cucumber growth and nitrogen assimilation.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Lei Chen, Cheng Jiang, Li Ye, Yue Gao, Xilin Hou
Summary: This study identified and characterized 163 C2H2-type zinc finger proteins in non-heading Chinese cabbage. Two of these proteins, BcZAT12 and BcZAT10, were found to be closely related to cold tolerance and acted as transcriptional repressors in regulating cold resistance. Furthermore, BcZAT12 was shown to directly bind to the promoter of BcCBF1 and inhibit its activity. Additionally, interactions between BcZAT12 and other proteins such as BcABF2/4 were observed. These findings provide insights into the functional roles and regulatory mechanisms of C2H2-ZFPs in non-heading Chinese cabbage under cold stress.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Ommolbanin Tourajzadeh, Halimeh Piri, Amir Naserin, Mohammad mahdi Cahri
Summary: The combination of NB and reduced irrigation water depth can mitigate the negative effects of salinity and drought stresses on quinoa and improve its water productivity. The use of NB up to 2% alleviated salinity and drought stress and increased yield, while decreasing salinity and irrigation water depth increased water productivity. The appropriate use of NB can reduce the negative effects of stress and promote the sustainable production of quinoa.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Jing Li, Yujie Wu, Xiaohui Feng, Tabassum Hussain, Kai Guo, Xiaojing Liu
Summary: This study investigated the growth and physiological responses of cherry tomatoes under different salt conditions and found that nonuniform salinity conditions improved photosynthetic characteristics, water use efficiency, and fruit yield. These findings are important for improving tomato productivity on salt-affected lands.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Ruonan Li, Ruying Wang, Meng Li, Yunpu Zheng, Xiaxiang Zhang, Zhimin Yang, Jingjin Yu
Summary: The study found that elevated CO2 can increase stolon growth and carbohydrate accumulation in stolon nodes and internodes. Foliar application of auxin enhances this effect, while auxin transport inhibitor has no effect.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Jian-Jun Tao, Cui-Cui Yin, Yang Zhou, Yi-Hua Huang, Shou-Yi Chen, Jin-Song Zhang
Summary: Soil salinization is a major obstacle for agriculture sustainability, as it severely affects plant growth and crop yield. Ethylene, a stress hormone, plays a crucial role as a signal molecule in coordinating plant growth and stress response in the model plant Arabidopsis. However, the roles and mechanisms of ethylene in most crop plants under salinity remain undefined. This review summarizes the universal roles of ethylene and focuses on its divergent roles in rice and other crop species under salinity, particularly in terms of ethylene biosynthesis and signal transduction. The contradictions between ethylene production and signaling in salt response are also discussed.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)
Article
Plant Sciences
Chang Guo, Xiaona Wang, Qi Wang, Zipeng Zhao, Bing Xie, Lang Xu, Ruijie Zhang
Summary: This review provides an overview of the effects of ozone pollution on plant secondary metabolism. It explores the role of plant secondary metabolism in defense against ozone stress and adaptation to ozone-polluted environments, while summarizing the severity of ozone pollution.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2024)