ForestsPub Date : 2024-10-12DOI: 10.3390/f15101795
Wenqin Bao, Yongbao Shen, Julian C. Verdonk
{"title":"Dynamic Changes in Flavonoids’ Accumulation Pattern in Tilia miqueliana Flowers at Different Developmental Stages Based on Widely Targeted Metabolomic Analysis","authors":"Wenqin Bao, Yongbao Shen, Julian C. Verdonk","doi":"10.3390/f15101795","DOIUrl":"https://doi.org/10.3390/f15101795","url":null,"abstract":"Tilia miqueliana is an endemic species belonging to the genus Tilia L. (Tiliaceae) in China, which is known for its fragrant flowers and nectar, but the dynamic changes in metabolites during its growth and development are still unclear. In this study, the metabolic profiles from T. miqueliana flowers at three developmental stages were detected by performing an ultra-performance liquid chromatography–electrospray ionization–tandem mass spectrometry (UPLC-ESI-MS/MS)-based widely targeted metabolomic analysis. A total of 1138 metabolites were detected, with 288 Differentially Accumulated Metabolites (DAMs) determined, flavonoids accounting for the largest proportion. The trend analysis showed that DAMs present seven distinctive patterns, and subclass 5 obtained the largest amount with continuously increased relative content during flower development. The Kyoto Encyclopedia of Genes and Genomes (KEGG) annotation and enrichment analysis of DAMs showed different overlap and variability in metabolic pathways, indicating different directions of flavonoids’ metabolic flux in the three developmental stages. A correlation network analysis further revealed five core metabolites that played essential roles in flavonoid biosynthesis. This research provides comprehensive insights into the exploitation and utilization of T. miqueliana as well as a scientific basis for phylogenetic studies of the genus Tilia.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"15 10","pages":"1795-1795"},"PeriodicalIF":0.0,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/1999-4907/15/10/1795/pdf?version=1728725282","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147894593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ForestsPub Date : 2024-09-26DOI: 10.3390/f15101699
Shuaibin Sun, Wenchao Li, Kunyang Ju, Xiong Xiong, Jie Li, Chengming Yu, Yehan Tian, Huixiang Liu
{"title":"Tetramycin B3: An Effective and Biological Nematicide for Bursaphelenchus xylophilus","authors":"Shuaibin Sun, Wenchao Li, Kunyang Ju, Xiong Xiong, Jie Li, Chengming Yu, Yehan Tian, Huixiang Liu","doi":"10.3390/f15101699","DOIUrl":"https://doi.org/10.3390/f15101699","url":null,"abstract":"Pine wilt disease, caused by Bursaphelenchus xylophilus (Steiner & Buhrer, 1934) Nickle 1981, poses a significant threat to the safety of pine forests in the world. Currently, the available nematicides for controlling this disease are limited. Finding new nematicides is crucial for the effective prevention and control of pine wilt disease. In this study, we discovered that tetramycin B3, derived from Streptomyces ahygroscopicus, demonstrated a promising effect on pine wilt disease. The LC50 values of tetramycin B3 at 24, 48, and 72 h were 26.49, 23.37, and 12.79 μg/mL, respectively. Tetramycin B3 significantly inhibited the feeding and growth rate of B. xylophilus at low concentrations while also increasing ROS (reactive oxygen species) production and lipid accumulation. Furthermore, tetramycin B3 markedly inhibited the activity of detoxifying and protective enzymes. Transcriptome and metabolome analyses indicated that tetramycin B3 significantly affected the expression of genes related to lysosomes, autophagy, and lipid metabolism in B. xylophilus. Additionally, tetramycin B3 delayed the onset of pine wilt disease. Transcriptome results showed that tetramycin B3 significantly influenced the expression of genes related to defense responses in pine trees and induced pine trees to produce disease-resistant mechanisms. Future research will focus on further elucidating the mechanism of action of tetramycin B3 against B. xylophilus and verifying the gene functions identified through transcriptome screening.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"15 10","pages":"1699-1699"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/1999-4907/15/10/1699/pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147908519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ForestsPub Date : 2024-09-12DOI: 10.3390/f15091611
Zhenyu Zhang, Mu Jiang, Jingwei Zhao
{"title":"The Restorative Effects of Unique Green Space Design: Comparing the Restorative Quality of Classical Chinese Gardens and Modern Urban Parks","authors":"Zhenyu Zhang, Mu Jiang, Jingwei Zhao","doi":"10.3390/f15091611","DOIUrl":"https://doi.org/10.3390/f15091611","url":null,"abstract":"The purpose of this paper is to explore the restorative effects of two unique Urban Green Spaces (UGSs): modern urban parks (MUPs) and classical Chinese gardens (CCGs). Compared to MUPs, little research has been conducted on the potential restorative effects of CCGs. To fill this gap, we collected video clips of various scenes in Suzhou, Jiangsu Province, ‘the city of gardens’ in China, and produced video images of CCGs and MUPs representing UGSs. Public ratings of these videos were collected using the Short-Version Revision Repair Scale (SRRS) to analyze the perceived restorative effects and drivers of CCGs and MUPs in combination with landscape elements, which were deeply parsed using computer vision techniques (semantic segmentation techniques) and expert scoring methods. The aim is to enhance the therapeutic effects of CCGs and MUPs. The results indicate that the differences between the two landscape types in terms of their restorative effects are not significant. The videos representing CCGs had a greater standard deviation of restorative effects (a lower level of consensus) compared to the videos depicting MUPs. Deep learning techniques for semantic segmentation combined with expert scoring methods can effectively help us to understand the drivers influencing restorative effects, and we combined our findings to conclude that improved waterscape design is an essential driver for enhancing the perceived restorative effects of CCGs and that decreasing specific artificial modern structures, enhancing vegetation cover, and increasing public exposure to nature are critical to strengthening the restorative effects of both. Hopefully, these findings will improve visitors’ recovery in UGS environments and guide landscape architects to more effectively design healing UGSs.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"15 9","pages":"1611-1611"},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147878258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ForestsPub Date : 2024-08-16DOI: 10.3390/f15081447
Abdelmalik M. Abdelmalik, Thobayet S. Alshahrani, Abdulaziz A. Alqarawi, Ahmed M. Abd‐ElGawad, Eljaily M. Ahmed, Salah N. Sorrori
{"title":"Arbuscular Mycorrhiza Fungi Alleviate the Allelopathic Effects of Invasive Nicotiana glauca on the Growth of Acacia gerrardii Seedlings","authors":"Abdelmalik M. Abdelmalik, Thobayet S. Alshahrani, Abdulaziz A. Alqarawi, Ahmed M. Abd‐ElGawad, Eljaily M. Ahmed, Salah N. Sorrori","doi":"10.3390/f15081447","DOIUrl":"https://doi.org/10.3390/f15081447","url":null,"abstract":"A greenhouse experiment was conducted to determine the potential of arbuscular mycorrhizal fungi (AMF) to mitigate the allelopathic effects of invasive Nicotiana glauca on the growth of Acacia gerrardii seedlings. Aqueous extracts from N. glauca leaves and flowers (at concentrations of 20, 60, and 100 g/L) and AMF treatment (±AMF) were applied to A. gerrardii seedlings arranged in a factorial experiment with four replicates. After 6 months, vegetative (plant fresh and dry weight, height, leaf number area), physiological (photosynthesis, stomatal conductance, transpiration rate), chlorophyll a and b, proline, and root (length, surface area, diameter, volume, tip number) parameters as well as root distribution in five root diameter classes (0–5 mm, in 1 mm increments) were examined. The presence of AMF increased the seedling growth parameters. The 20 g/L treatment stimulated most of the vegetative growth, root, chlorophyll, and photosynthesis parameters at both inoculant levels for all extract types and concentrations, and the 100 g/L treatment inhibited seedling growth whether inoculated with AMF or not. This decline was alleviated in AMF-treated seedlings. For both extract sources, root length decreased as extract concentration increased, and roots <1 mm accounted for the greatest proportion of total root length, surface area, and tip number, with higher values observed in AMF-treated seedlings compared to their untreated counterparts. Further research is required at the field level to identify AMF strains and their interaction effects in alleviating the allelopathic impact of N. glauca on A. gerrardii seedling growth.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"15 8","pages":"1447-1447"},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/1999-4907/15/8/1447/pdf?version=1723816203","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147880391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ForestsPub Date : 2024-06-23DOI: 10.3390/f15071089
Weiwei Yang, Wanrong Ma, Xinyou Liu, Wei Wang
{"title":"Consolidation and Dehydration Effects of Mildly Degraded Wood from Luoyang Canal No. 1 Ancient Ship","authors":"Weiwei Yang, Wanrong Ma, Xinyou Liu, Wei Wang","doi":"10.3390/f15071089","DOIUrl":"https://doi.org/10.3390/f15071089","url":null,"abstract":"To ensure the conservation of waterlogged archaeological wood, sustainable, safe, and effective methods must be implemented, with consolidation and dehydration being crucial for long-term preservation to maintain dimensional stability and structural integrity. This study compares the permeability of 45% methyltrimethoxysilane (MTMS) and 45% trehalose solutions to evaluate the dimensional changes, hygroscopicity, and mechanical properties of treated wood. Since the collected samples (from an ancient ship, Luoyang Canal No. 1) were mildly degraded, the drying method had a slight impact on the properties of archaeological wood. Consolidated with trehalose and MTMS agents, the longitudinal compressive strength of the waterlogged wood’s cell walls increased by 66.8% and 23.5%, respectively. Trehalose proved to be more advantageous in filling pores and reducing overall shrinkage, while MTMS significantly reduced the hygroscopicity and surface hydrophilicity of the wood substance. Overall, the MTMS treatment has a smaller effect on the appearance of samples, making it more suitable for the consolidation of mildly degraded waterlogged archaeological wood.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"15 7","pages":"1089-1089"},"PeriodicalIF":0.0,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/1999-4907/15/7/1089/pdf?version=1719131381","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ForestsPub Date : 2024-03-29DOI: 10.3390/f15040622
Fangchao Zhang, Weiwei Lü, Feng‐Jie Jin
{"title":"Chemical Recalcitrance Rather Than Soil Microbial Community Determined Short-Term Biochar Stability in a Poplar Plantation Soil","authors":"Fangchao Zhang, Weiwei Lü, Feng‐Jie Jin","doi":"10.3390/f15040622","DOIUrl":"https://doi.org/10.3390/f15040622","url":null,"abstract":"The stability of biochar is fundamental to its soil carbon (C) sequestration potential. The relative importance of chemical recalcitrance and the soil microbial community on biochar stability is still unclear. To unveil the question, we conducted a 60-day incubation to explore the stability of two rice-straw-derived biochars pyrolyzed at 300 and 500 °C (denoted as BS300 and BS500), as well as the relative contribution of the soil microbial community and biochar chemical recalcitrance to biochar stability in a poplar plantation soil. Biochar-derived cumulative carbon dioxide (CO2) emission was estimated to be 41.3 and 6.80 mg C kg−1, accounting for 0.73 and 0.11% of the amended biochar-derived organic C (OC) in BS300 and BS500 treatments, respectively. The mean retention time (MRT) estimated by double-exponential model fitting was 49.4 years for BS300 and 231 years for BS500. Compared to control, BS300 and BS500 decreased β-D-glucosidase activity by 20.9 and 18.0%, while they decreased phenol oxidase activity by 31.8 and 18.9%, respectively. Furthermore, BS300 increased the soil microbial metabolic quotient (qCO2) by 155%, but BS500 decreased it by 13.4%. In addition, BS300 resulted in a 520% higher biochar-derived hot-water-extractable OC than BS500. Partial least-squares path modeling (PLSPM) showed that the path efficients of biochar’s chemical recalcitrance and microbial qCO2 were 0.52 and 0.25, respectively, and that of the soil microbial activity is neglected. We conclude from this short-term study that chemical recalcitrance imposed a greater effect than soil microbial community on biochar stability.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"15 4","pages":"622-622"},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/1999-4907/15/4/622/pdf?version=1711688918","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147893793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ForestsPub Date : 2024-03-08DOI: 10.3390/f15030499
Nikos Nanos, Eduardo García‐del‐Rey, Luis Gil
{"title":"Optimal Selection of Seed-Trees Using the Multi-Objective NSGA-II Algorithm and a Seed Dispersal Model","authors":"Nikos Nanos, Eduardo García‐del‐Rey, Luis Gil","doi":"10.3390/f15030499","DOIUrl":"https://doi.org/10.3390/f15030499","url":null,"abstract":"Optimal seed-tree selection during natural regeneration of shade-intolerant species requires ensuring an ample and uniform seed supply from residual trees with the smallest possible seed-tree density. Here, we propose a novel approach for seed-tree selection using the genetic algorithm. Data are derived from a 3-hectare even-aged stand of Pinus canariensis C.Sm. ex DC, comprising 364 mature trees and 103 seed-traps. Seeds were collected in 2007 and 2008. After constructing a seed-dispersal model for each seed-crop year, we employ the multi-objective non-dominated sorting genetic algorithm to identify the smallest seed-tree set that maximizes post-treatment seed supply and its spatial homogeneity. Optimal solutions range from a maximum of 68.4% to a minimum of 38.1% reduction in stand density, resulting in a 59.5% to 28% reduction in post-felling seed supply. The coefficient of variation of among-site seed-flux varies from 28% to 59.5%. Proposing a treatment involving the removal of 240 trees (65.9% stand-density reduction) and leaving 40 seed-trees per hectare, our findings provide insights into balancing the conflicting objectives of sufficient post-treatment seed supply at a minimum seed-tree density. This approach marks a departure from traditional practices, as the decision about which trees to cut is historically left to the discretion of field managers.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"15 3","pages":"499-499"},"PeriodicalIF":0.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/1999-4907/15/3/499/pdf?version=1709881142","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147909703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ForestsPub Date : 2024-01-12DOI: 10.3390/f15010161
Dylan G. Fischer, Zoe R. Chamberlain, Claire E. Cook, Randall Adam Martin, Liam O. Mueller
{"title":"Long-Term Patterns in Forest Soil CO2 Flux in a Pacific Northwest Temperate Rainforest","authors":"Dylan G. Fischer, Zoe R. Chamberlain, Claire E. Cook, Randall Adam Martin, Liam O. Mueller","doi":"10.3390/f15010161","DOIUrl":"https://doi.org/10.3390/f15010161","url":null,"abstract":"Soil CO2 efflux (Fs) plays an important role in forest carbon cycling yet estimates of Fs can remain unconstrained in many systems due to the difficulty in measuring Fs over long time scales in natural systems. It is important to quantify seasonal patterns in Fs through long-term datasets because individual years may show patterns that are not reflective of long-term averages. Additionally, determining predictability of net patterns in soil carbon flux based on environmental factors, such as moisture and temperature, is critical for appropriately modeling forest carbon flux. Ecosystems in moderate climates may have strong CO2 efflux even during winter, and so continuous quantification of annual variability is especially important. Here, we used a 2008–2023 dataset in a lowland temperate forest ecosystem to address two main questions: (1) What are the seasonal patterns in Fs in a highly productive temperate rainforest? (2) How is average Fs across our study area predicted by average coincident temperature, soil moisture and precipitation totals? Data showed clear seasonality where Fs values are higher in summer. We also find Fs across our measurement network was predicted by variation in abiotic factors, but the interaction between precipitation/moisture and temperature resulted in greater complexity. Specifically, in spring a relatively strong relationship between air temperature and Fs was present, while in summer the relationship between temperature and Fs was flat. Winter and autumn seasons showed weak positive relationships. Meanwhile, a negative relationship between precipitation and Fs was present in only some seasons because most precipitation falls outside the normal growing season in our study system. Our data help constrain estimates of soil CO2 fluxes in a temperate rainforest ecosystem at ~14–20 kg C ha−1 day−1 in summer and autumn, and 6.5–10.5 kg C ha−1 day−1 in winter and spring seasons. Together, estimates suggest this highly productive temperate rainforest has annual soil-to-atmosphere fluxes of CO2 that amount to greater than 4.5 Mg C ha−1 year−1. Sensitivity of such fluxes to regional climate change will depend on the balance of Fs determined by autotrophic phenological responses versus heterotrophic temperature and moisture sensitivity. Relatively strong seasonal variation coupled with comparatively weak responses to abiotic variables suggest Fs may be driven largely by seasonal trends in autotrophic respiration. Accordingly, plant and tree responses to climate may have a stronger effect on Fs in the context of climate change than temperature or moisture changes alone.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"10 44","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139437932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ForestsPub Date : 2024-01-11DOI: 10.3390/f15010153
Xin Jin, Baoliang Chang, Yanqing Huang, Xiaokun Lin
{"title":"Assessment of Climate Change and Land Use/Land Cover Effects on Aralia elata Habitat Suitability in Northeastern China","authors":"Xin Jin, Baoliang Chang, Yanqing Huang, Xiaokun Lin","doi":"10.3390/f15010153","DOIUrl":"https://doi.org/10.3390/f15010153","url":null,"abstract":"Climate change and land use/land cover (LULC) change have received widespread attention as the two main factors contributing to the shrinking of plant habitats. However, the different effects of these factors on understory economic tree species are not clear. This is not conducive to the conservation and exploitation of forest resources. Here, we used species distribution modeling to predict the extent to which climate change and LULC change will affect changes in suitable habitats for A. elata under different scenarios in the future. The results showed the suitable habitat to be located in the Changbai Mountain Range in northeast China. The current area is 110,962 km2. The main variables that affect the suitable habitat are annual precipitation, LULC, slope, and mean diurnal range. The percentage contributions are 31.2%, 16.8%, 12.8%, and 12.3%, respectively. In the 2070s, the area of high-quality (moderately and highly) suitable habitat was reduced by an average of 6.05% when climate alone changed, and by an average of 10.21% when land use alone changed. When both factors changed together, there was an average decrease of 9.69%. When climate change and land use change acted together, the shrinking area of suitable habitat did not suddenly increase. These findings help to identify potentially suitable habitats for A. elata and to carry out conservation and exploitation efforts to ensure sustainability.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"1 4","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139438196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region","authors":"Lamei Jiang, Deyan Wu, Wenjing Li, Yuehan Liu, Eryang Li, Xiaotong Li, Guang Yang, Xuemin He","doi":"10.3390/f15010148","DOIUrl":"https://doi.org/10.3390/f15010148","url":null,"abstract":"Salt stress is a key environmental factor that has adverse effects on plant growth and development. High salinity induces a series of structural and functional changes in the morphological and anatomical features. The physiological and biochemical changes in K. foliatum in response to salt stress in natural environments are still unclear. Based on this, this study compared and analyzed the differences in the physiological and biochemical indicators between the leaf and root tissues in high-salt and low-salt habitats, selecting K. foliatum as the research object. The results showed that the chlorophyll contents in the leaves of K. foliatum decreased in the high-salt habitat, while the thicknesses of the upper and lower epidermises, as well as the thicknesses of the palisade tissue, significantly increased. The high-salt environment led to decreases in the N and P contents in the leaves and root tissues of K. foliatum, resulting in changes in the stoichiometric ratio of elements. The concentrations of C, N, and P in the roots of K. foliatum were lower than those in the leaves. The accumulation of Na+ in the K. foliatum roots was greater than that in the leaves, and the roots could promote the transport of sodium ions to the leaves. The contents of starch and soluble sugar in the leaves showed higher proportions in the high-salt habitat than in the low-salt habitat, while the changes in the roots and leaves were the opposite. As the salt content increased, the proline contents in the leaves and roots of K. foliatum significantly increased, and the proline contents in the roots of K. foliatum were lower than those in the leaves. The leaves and roots exhibited higher levels of peroxidase and superoxide enzymes in the high-salinity habitat than in the low-salinity habitat. The superoxide dismutase (SOD) activity of the K. foliatum leaves and catalase (CAT) activity of the roots were the “central traits” in the high-salt habitat. In the low-salt habitat, the leaf malondialdehyde (MDA) and root C/N were the central traits of the leaves and roots, indicating that K. foliatum adapts to changes in salt environments in different ways.","PeriodicalId":12339,"journal":{"name":"Forests","volume":"14 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139438823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}