Article
Plant Sciences
Honglang Duan, Victor Resco de Dios, Defu Wang, Nan Zhao, Guomin Huang, Wenfei Liu, Jianping Wu, Shuangxi Zhou, Brendan Choat, David T. Tissue
Summary: This study investigated the drought tolerance and recovery process of Schima superba seedlings through a water manipulation experiment. The results showed differences in gas exchange recovery and stem hydraulics among different provenances.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Honglang Duan, Defu Wang, Nan Zhao, Guomin Huang, Victor Resco de Dios, David T. Tissue
Summary: Subtropical tree species may face severe drought stress in the future due to variable rainfall, and the ability to restore hydraulic function after drought may vary among species with different leaf habits. The links between hydraulic recovery and physiological and morphological traits related to water-carbon availability are still not well understood.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Jie Qin, Jianhua Si, Bing Jia, Chunyan Zhao, Dongmeng Zhou, Xiaohui He, Chunlin Wang, Xinglin Zhu
Summary: This study investigated the water use strategies of Ferula bungeana at different elevations in response to extreme drought conditions. The water absorption sources, water potential, hydraulic conductivity, and water use efficiency were examined. The findings suggest that water absorption mainly occurs in the 0-60 cm soil layers and the water use efficiency is relatively high. The growth stage of the plant appears to be the main factor influencing water use strategies.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Xiao Liu, Tingting Yin, Yang Zhang, Dizhou Huang, Pan Wu, Ning Wang, Peiming Zheng, Hui Wang, Renqing Wang
Summary: Forests with mixed planting patterns show differences in water use strategies. This study found that mixed planting can increase the proportion of groundwater use and enhance the diversity of plant water use strategies. It also improves the drought resistance of the whole forest community.
Article
Water Resources
Maoya Bassiouni, Stefano Manzoni, Giulia Vico
Summary: Plant responses to water stress affect water and carbon cycles and may have climate feedbacks, but characterizing these responses at the ecosystem level is uncertain. Quantifying ecosystem-level water use strategies is challenging due to difficulties in upscaling plant traits and disentangling environmental factors, limiting our understanding of global change in ecosystem dynamics and ecohydrological fluxes.
ADVANCES IN WATER RESOURCES
(2023)
Article
Plant Sciences
Yael Wagner, Mila Volkov, Daniel Nadal-Sala, Nadine Katrin Ruehr, Uri Hochberg, Tamir Klein
Summary: Recent findings indicate that trees can survive high levels of drought-induced xylem embolism, but this irreversible damage can affect post-drought recovery and tree function under recurring droughts. The study examined the development of embolism in potted Aleppo pines and investigated the impact of different levels of embolism on post-drought recovery and the consequences of drought-induced damage under a recurring drought scenario. The results showed that trees with higher levels of embolism took longer to recover and stomatal conductance decreased following drought, impeding tree functioning.
PHYSIOLOGIA PLANTARUM
(2023)
Article
Chemistry, Applied
Ke Guo, Wenxin Liang, Shujun Wang, Dongwei Guo, Fulai Liu, Staffan Persson, Klaus Herburger, Bent L. Petersen, Xingxun Liu, Andreas Blennow, Yuyue Zhong
Summary: This review summarizes the effects of water, heat, high nitrogen, salinity, shading, and CO2 stress on starch biosynthesis and physicochemical properties. Agricultural modification, as a fifth method, offers the advantage of large-scale operation and low cost.
CARBOHYDRATE POLYMERS
(2023)
Review
Chemistry, Multidisciplinary
Omar A. Kazi, Wen Chen, Jamila G. Eatman, Feng Gao, Yining Liu, Yuqin Wang, Zijing Xia, Seth B. Darling
Summary: Population growth, urbanization, and decarbonization efforts are straining the supply of limited resources for critical products. Developing separation technologies for resource recovery from surface water, groundwater, and wastewater can secure the supply chains. Material-based technologies such as membranes and catalysts show promise for critical resource recovery.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Adriano Losso, Anthea Challis, Alice Gauthey, Rachael H. Nolan, Samuel Hislop, Adam Roff, Matthias M. Boer, Mingkai Jiang, Belinda E. Medlyn, Brendan Choat
Summary: In 2019, south-eastern Australia experienced its driest and hottest year on record, resulting in massive canopy dieback events in eucalypt dominated forests. A subsequent period of high precipitation in 2020 provided a rare opportunity to quantify the impacts of extreme drought and consequent recovery.
SCIENTIFIC REPORTS
(2022)
Review
Plant Sciences
Zhicheng Chen, Shan Li, Xianchong Wan, Shirong Liu
Summary: Trees employ leaf stomatal regulation and stem xylem embolism resistance as important strategies to prevent hydraulic failure and carbon starvation when facing drought. Species with greater investment in leaves and stems are more likely to maintain stomatal opening and resist stem embolism under drought conditions.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Engineering, Civil
Angel Mariano Rodriguez-Perez, Cinta Perez-Calanas, Inmaculada Pulido-Calvo
Summary: This paper evaluates the possibility of utilizing non-utilized hydraulic energy in urban water distribution systems, examining the feasibility and efficiency of installing turbines or PATs in two towns in Andalucia, southwest Spain. The results show the most appropriate turbine models and annual energy generation for the different hydraulic systems in the two towns.
WATER RESOURCES MANAGEMENT
(2021)
Article
Forestry
Yongju Zhao, Defu Wang, Honglang Duan
Summary: In the context of climate change, future patterns of precipitation are expected to increase the intensity and frequency of drought and flooding stress, leading to more frequent flooding-drought alternation events. The effects of these stressors on tree morphology, physiology, and biochemistry can pose long-term threats to tree survival and disrupt forest ecosystems. The study examined how C. camphora seedlings cope with drought, flooding, and alternation of the two through growth and physiological responses. Results showed different growth patterns under drought and flooding, with drought favoring root growth and flooding favoring leaf growth. Stomatal limitations were the main cause of decreased photosynthesis under both drought and flooding, accompanied by abscisic acid accumulation only under drought. Drought reduced water potential, while flooding-drought alternation decreased water potential only during the drought phase. Drought stress led to carbon depletion in both stem and root, while flooding stress primarily induced carbon depletion in the root. The study emphasizes the need to consider specific water stress conditions in future research and provides a basis for better management of C. camphora in urban areas under variable rainfall patterns.
Article
Plant Sciences
Honglang Duan, Changchang Shao, Xianying Luo, Victor Resco de Dios, David T. Tissue, Guijie Ding
Summary: Adapting to future climates with more severe droughts requires a better understanding of tree mortality mechanisms. This study investigated the physiological limits and the relationship between water and carbon traits in enhancing survival in Pinus massoniana seedlings. The results showed that hydraulic failure played a primary role in seedling mortality, and root relative water content could be a potential warning signal for mortality.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Martina Tomasella, Valentino Casolo, Sara Natale, Francesco Petruzzellis, Werner Kofler, Barbara Beikircher, Stefan Mayr, Andrea Nardini
Summary: The study found that shade-induced NSC depletion increases the vulnerability of plant xylem and impedes hydraulic recovery, while plants under light exposure can recover better; this suggests that light and adequate stem NSC thresholds are necessary to trigger xylem sap chemical changes involved in embolism recovery.
Article
Forestry
Xijin Zhang, Dan Wu, Qingyao Li, Faguang Pu, Xingli Xia, Mingyang Chang, Kun Song
Summary: Parenchyma in the secondary xylem plays a crucial role in storing non-structural carbohydrates. This study reveals an influence of climate on the composition of parenchyma, with colder temperatures leading to changes in its composition. These findings are important for assessing the adaptive capacities of tree populations under stress-inducing events.
Article
Plant Sciences
Andrea Nardini, Francesco Petruzzellis, Daniel Marusig, Martina Tomasella, Sara Natale, Alfredo Altobelli, Chiara Calligaris, Gabriele Floriddia, Franco Cucchi, Emanuele Forte, Luca Zini
Summary: The study shows that different bedrock characteristics can affect tree water status and drought resistance, leading to landscape-level heterogeneity in the impact of drought on tree water status and dieback.
Article
Plant Sciences
Patrizia Trifilo, Francesco Petruzzellis, Elisa Abate, Andrea Nardini
Summary: The study found that leaf hydraulic conductance increased and became more vulnerable to dehydration under high irradiance conditions, mainly due to marked changes in the extra-vascular water pathway. After re-watering, leaf hydraulic conductance recovered in parallel with extra-vascular recovery, but its response to irradiance remained inhibited.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Plant Sciences
Martina Tomasella, Valentino Casolo, Sara Natale, Francesco Petruzzellis, Werner Kofler, Barbara Beikircher, Stefan Mayr, Andrea Nardini
Summary: The study found that shade-induced NSC depletion increases the vulnerability of plant xylem and impedes hydraulic recovery, while plants under light exposure can recover better; this suggests that light and adequate stem NSC thresholds are necessary to trigger xylem sap chemical changes involved in embolism recovery.
Article
Plant Sciences
Martina Tomasella, Sara Natale, Francesco Petruzzellis, Sara Di Bert, Lorenzo D'Amico, Giuliana Tromba, Andrea Nardini
Summary: Recent studies have shown that stem photosynthesis can promote bark water uptake and embolism recovery under light conditions. However, there is a lack of evidence for this phenomenon in drought-resistant Mediterranean species.
Article
Ecology
Martina Tomasella, Enrico De Nardi, Francesco Petruzzellis, Sergio Andri, Miris Castello, Andrea Nardini
Summary: This study compared the effects of an irrigation control unit based on psi(s) thresholds (MWS) and a common irrigation timer maintaining psi(s) similar to 0 MPa (CTR) on shrub-vegetated Mediterranean EGR modules. The results showed that reducing psi(s) thresholds led to significant reductions in irrigation volumes in summer months, with species-specific dynamics in temperature, plant water status, and root vulnerability to heat.
Article
Green & Sustainable Science & Technology
Marco Manzan, Giovanni Bacaro, Andrea Nardini, Giulia Casagrande, Amedeo Pezzi, Francesco Petruzzellis, Enrico Tordoni, Giorgio Fontolan
Summary: Climate change is increasingly affecting local communities, necessitating specific actions at the local level. The Covenant of Mayors aims to involve municipalities and communities in developing plans for sustainable energy and climate, and has developed a template to identify and evaluate hazards. This paper presents a data driven methodology to fill the template, which was applied to the city of Trieste in Italy. The results demonstrate the effectiveness of the approach in assisting municipalities in developing their plans and identifying hazards' present and future evolution.
Article
Plant Sciences
Patrizia Trifilo, Elisa Abate, Francesco Petruzzellis, Maria Azzara, Andrea Nardini
Summary: Plant water content is a crucial parameter for monitoring drought-induced plant mortality risk. The determination of critical water content thresholds is important for understanding the process of cell damage and plant death. Regardless of the organ, a relative water content value of 60% leads to significant cell membrane damage and loss of rehydration capacity, resulting in irreversible plant failure and death.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Martina Tomasella, Alberto Calderan, Alenka Mihelcic, Francesco Petruzzellis, Riccardo Braidotti, Sara Natale, Klemen Lisjak, Paolo Sivilotti, Andrea Nardini
Summary: The pressure chamber is commonly used for plant water status monitoring, but its protocols for water potential determination have not been properly tested in different grapevine cultivars and seasons. The storage time for leaf water potential measurements and equilibration time for stem water potential determination were evaluated in four grapevine cultivars under moderate drought conditions. The results showed that the storage time and equilibration time varied among cultivars and seasons, suggesting the need for specific procedures for water status determination in different conditions.
Article
Plant Sciences
Marco Vuerich, Elisa Petrussa, Francesco Boscutti, Enrico Braidot, Antonio Filippi, Francesco Petruzzellis, Martina Tomasella, Giuliana Tromba, Mauro Pizzuto, Andrea Nardini, Francesca Secchi, Valentino Casolo
Summary: Xylem embolism and recovery in grapevine cultivars under drought stress and re-irrigation were studied. Non-structural carbohydrates were found to play a role in both processes, but with different strategies between the two cultivars.
PLANT AND CELL PHYSIOLOGY
(2023)
Article
Forestry
Maria Prigoliti, Maria Teresa Chiofalo, Francesco Petruzzellis, Maria Assunta Lo Gullo, Patrizia Trifilo
Summary: In the last 20 years, a significant mortality of European beech has been observed in central and northern European forests. However, no die off occurred at the southern limit, suggesting that beech populations in this region exhibit a significant phenotypic plasticity to cope with adverse environmental conditions. A study in Italy found that beech populations at different altitudes showed variation in physiological and anatomical traits, indicating their ability to adjust to narrow ranges of environmental parameters.
Article
Plant Sciences
Damiano Spagnuolo, Viviana Bressi, Maria Teresa Chiofalo, Marina Morabito, Claudia Espro, Giuseppa Genovese, Daniela Iannazzo, Patrizia Trifilo
Summary: This study aims to investigate the effects of seed-priming treatment with different discarded liquid phases (AHL(180), AHL(240), and AHL(300)) on seed germination, plant growth and productivity of Phaseolus vulgaris L. The results showed that AHL treatment did not affect seed germination, while PEG treatment significantly reduced the germination success rate. AHL treatment resulted in changes in plant biomass, with higher shoot biomass in AHL(180) samples and higher root biomass in AHL(240) and AHL(300) samples.
Article
Forestry
Maria Azzara, Elisa Abate, Maria T. Chiofalo, Alessandro Crisafulli, Patrizia Trifilo
Summary: Invasive alien species threaten biodiversity richness in the drought-prone Mediterranean basin. This study compares the water relations and critical relative water content (RWC) values of two Mediterranean invasive species (Ailanthus altissima and Robinia pseudoacacia) with two co-occurring native species (Fraxinus ornus and Quercus pubescens). The invasive species exhibited higher water potential and osmotic potential but lower elasticity and leaf mass area, while maintaining a higher photosynthesis rate. However, both invasive and native species exhibited similar leaf RWC thresholds leading to loss of cell rehydration capacity. Our findings suggest that the success of Mediterranean invasive species is driven by their ability to delay dehydration damage during summer drought, supporting their high carbon assimilation rate.
Article
Plant Sciences
Wanli You, Jinglin Zhang, Xueyin Ru, Feng Xu, Zhengguo Wu, Peng Jin, Yonghua Zheng, Shifeng Cao
Summary: This study investigated the effect of calcium chloride (CaCl2) treatment on GABA accumulation in fresh-cut cantaloupe and the underlying mechanisms. The results showed that CaCl2 treatment increased GABA content and the activities of GAD and SSADH enzymes, while reducing glutamate content and GABA-T activity. Additionally, CaCl2 treatment upregulated the expressions of CmCML11 and CmCAMTA5, as well as several GABA shunt genes, through the transcriptional activation by CmCAMTA5. Furthermore, the interaction between CmCML11 and CmCAMTA5 enhanced the transcriptional activation of GABA shunt genes. Overall, this study reveals that CaCl2 treatment promotes GABA accumulation in fresh-cut cantaloupe through the combined effect of CmCML11 and CmCAMTA5 in regulating the expressions of GABA shunt genes.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Min Wang, Yupeng Wang, Xiaohui Wang, Guangwei Wei, Huiyi Yang, Xi Yang, Tinghai Shen, Huijie Qu, Sheng Fang, Ziming Wu
Summary: This study identified the high nitrogen use efficiency (NUE) black sesame variety 17-156 and analyzed its underlying physiological and molecular mechanisms. The results showed that 17-156 possesses a sophisticated nitrogen metabolizing machinery to uptake and assimilate higher quantities of inorganic nitrogen, simultaneously improving carbon metabolism and growth. Many important genes were up-regulated in 17-156 under high nitrogen condition. Additionally, 38 potential candidate genes were identified for future studies to improve sesame's NUE. These findings provide valuable resources for understanding the regulatory network of nitrogen metabolism and developing sesame cultivars with improved NUE.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
He Dong, Chongmei Xu, Chengtao Zhang, Li Zhang, Yaqin Yao, Suiqi Zhang
Summary: The study found that short cells in maize leaves not only improve leaf mechanical support and photosynthetic performance, enhance drought resistance, but also participate in stomatal regulation.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Na Liu, Wenyan Shang, Mengxin Guan, Jibin Xiao, Guangxiang Tian, Baozhan Ma, Wenjing Shang, Xu Li, Shijia Zhao, Chuang Li, Kun Cheng, Wenming Zheng
Summary: This study cloned the full-length cDNA sequence of TaSPX3 gene in wheat and found that TaSPX3 responds to low phosphorus stress in multiple wheat genotypes. Overexpressing TaSPX3 can alleviate phosphorus deficiency symptoms and promote plant growth in Arabidopsis. The study also revealed the interaction of TaSPX3 with other genes related to the phosphorus starvation signaling pathway.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Kongyuan Wu, Lizhen Wang, Zihan Wu, Ziqing Liu, Zengfei Li, Jun Shen, Shengjie Shi, Hong Liu, Christopher Rensing, Renwei Feng
Summary: Selenium (Se) can reduce uptake and translocation of cadmium (Cd) in plants by regulating root morphology. This study investigated the effects of Se(IV) on root exudates, root morphology, root endogenous hormones, and Cd uptake efficiency in rice under Cd stress. The results showed that Se(IV) significantly reduced Cd concentrations in shoots and roots, and decreased Cd uptake efficiency via root hairs. Se(IV) also affected root morphology, root exudates, and the synthesis of hormones like IAA and JA. However, transcriptome analysis revealed no upregulated differentially expressed genes (DEGs) in IAA synthesis.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Di Wang, Huaifang Zhang, Xuefei Hu, Haizhen Zhang, Shuang Feng, Aimin Zhou
Summary: This study identified a cell number regulator gene called SlCNR8 in willow, which enhances resistance to trace metals in transgenic poplar seedlings. SlCNR8 reduces Cd uptake and accumulation, and can be used as a candidate gene for genetic improvement of phytostabilisation of trace metals.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
