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Forests
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Advances in the Cultivation, Protection and High-Value Utilization of Forest...
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Advances in the Cultivation, Protection and High-Value Utilization of Forest Resources

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Wood Science and Forest Products".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 4657

Special Issue Editors

Dr. Cheng Li

E-Mail Website
Guest Editor
College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
Interests: high-value utilization of forestry resources; biomass energy and materials; protection of forests
Special Issues, Collections and Topics in MDPI journals
Dr. Sabrina Palanti

E-Mail Website
Guest Editor
Italian National Research Council Institute for Bio-Economy (CNR-IBE), 50019 Sesto Fiorentino, Italy
Interests: natural durability of wood and wood-based products; wood preservatives; wood modifications; wood insects; wood fungi and marine organisms; biomaterial based on fungal mycelium and lignocellulosic wastes
Special Issues, Collections and Topics in MDPI journals
Dr. Liping Yu

E-Mail Website
Guest Editor
College of Forestry, Guizhou University, Guiyang 550025, China
Interests: wood modification; functionalization of wood; wood-based materials
Dr. Lifen Li

E-Mail Website
Guest Editor
College of Forestry, Guizhou University, Guiyang 550025, China
Interests: wood-based composite materials; wood modification; high-value utilization of lignin

Special Issue Information

Dear Colleagues,

Forestry mainly refers to the industry of forest resources, involving forest harvesting and regeneration, protection, reconstruction, tending, processing and utilization. With the rapid development of the social economy and the continuous improvement in human living standards, the demand for forestry products is also increasing. In addition, one of the main products of forests, wood, plays an important role in human life and production. The efficient and rational utilization of wood resources is of great significance for the sustainable development of forests. Through functional improvement and compounding, the performance and functions of wood can be improved so as to better meet the growing demand for sustainable materials in modern society. Treating wood via chemical, physical, or biological methods can improve its physicochemical properties or change its functions, such as improving its strength, weather resistance, corrosion resistance, fire resistance and waterproofing, or endowing it with photocatalytic, antibacterial, self-healing and antistatic properties, among other functions. Green and low-carbon wood-based composite materials can be produced by combining wood with polymers and organic or inorganic compounds in an environmentally friendly and energy-efficient manner. To continually develop the low-carbon economy emerging in response to global climate change, the sustainable development of forests is particularly important. A considerable number of studies presenting basic theoretical research and key technological innovations in forest resource cultivation theory and technology, economic forest cultivation and product processing, forest resource protection and utilization, etc., have been published.

This Special Issue, entitled "Advances in the Cultivation, Protection and High-Value Utilization of Forest Resources", seeks high-quality research and review papers related to the cultivation, protection and high-value utilization of forest resources, wood functionalization modification and the green preparation of wood-based composite materials. However, other papers related to forestry are also welcome.

Dr. Cheng Li
Dr. Sabrina Palanti
Dr. Liping Yu
Dr. Lifen Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Forests is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • high-value utilization of wood
  • forest resources
  • biomass materials from forest
  • wood panels and products
  • forest products
  • utilization of forest resources
  • forest resource cultivation
  • functionalization of wood
  • wood reinforcement
  • wood preservation
  • bio-based wood adhesives
  • biodegradable wood plastic composites
  • wood-inorganic nanocomposites
  • plant nutrition
  • plant biochemistry

Published Papers (5 papers)

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Research

14 pages, 4761 KiB  
Article
Efficacy and Antifungal Mechanism of Rosemary Essential Oil against Colletotrichum gloeosporioides
by Tiantian Yuan, Yang Hua, Dangquan Zhang, Chaochen Yang, Yong Lai, Mingwan Li, Shen Ding, Song Li and Yuanyuan Chen
Forests 2024, 15(2), 377; https://doi.org/10.3390/f15020377 - 18 Feb 2024
Viewed by 954
Abstract
The antifungal activity and mechanism of rosemary essential oil against Colletotrichum gloeosporioides, the walnut anthracnose pathogen, were investigated using scanning electron microscopy (SEM), index determination and transcriptome technique. The results showed that rosemary essential oil could inhibit the growth of C. gloeosporioides [...] Read more.
The antifungal activity and mechanism of rosemary essential oil against Colletotrichum gloeosporioides, the walnut anthracnose pathogen, were investigated using scanning electron microscopy (SEM), index determination and transcriptome technique. The results showed that rosemary essential oil could inhibit the growth of C. gloeosporioides with minimum inhibitory (MIC) and fungicidal (MFC) concentrations of 15.625 μL/mL and 31.25 μL/mL, respectively. Scanning electron microscopy revealed that the mycelium morphology became shriveled, twisted, and severely deformed after being treated with rosemary essential oil. The activity of chitinase, which decomposes fungal cell wall components in C. gloeosporioides, increased. The ergosterol content in the plasma membrane decreased, while the cell contents including nucleic acids, soluble protein and soluble reducing sugar were released resulting in the extracellular electrical conductivity being changed. For metabolic activity, the enzymes succinate dehydrogenase (SDH), malate dehydrogenase (MDH), ATPase and ATP decreased, whereas phosphofructokinase (PFK) increased. Transcriptome sequencing results showed that the antifungal mechanism of rosemary essential oil involves the destruction of the cell wall and membrane, inhibition of genetic material synthesis, and cell division and differentiation. The results are helpful to understand the efficacy and antifungal mechanism of rosemary essential oil against C. gloeosporioides and provide a theoretical basis for the development of rosemary essential oil as a biological control agent. Full article
(This article belongs to the Special Issue Advances in the Cultivation, Protection and High-Value Utilization of Forest Resources)
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12 pages, 2913 KiB  
Article
Construction of Riboswitches for Screening Antibacterial Agents from Forest Plants
by Zhanjun Liu, Taotao Li, Xingyu Zhang, Shiquan Liu, Zhiyuan Hu, Songlin Yu and Xiaohong Zhou
Forests 2024, 15(2), 367; https://doi.org/10.3390/f15020367 - 15 Feb 2024
Viewed by 686
Abstract
Forest plants contain abundant natural products, providing a valuable resource for obtaining compounds with various functional activities, such as antimicrobial, lipid-lowering, and immunoregulatory activities. The development of efficient tools for rapidly screening functional natural products from forest plants is essential for human health. [...] Read more.
Forest plants contain abundant natural products, providing a valuable resource for obtaining compounds with various functional activities, such as antimicrobial, lipid-lowering, and immunoregulatory activities. The development of efficient tools for rapidly screening functional natural products from forest plants is essential for human health. In this study, we constructed some transgenic strains (Escherichia coli) containing Ahy1-1 riboswitches that respond to cyclic di-guanylate (c-di-GMP), serving as a novel bacteriostatic target. The Ahy1-1 riboswitches contained the LacZ gene (encoding β-galactosidase) and c-di-GMP aptamer in order to monitor β-galactosidase activity due to changes in c-di-GMP. After co-incubating with extracts from fresh orange peel, fresh tea leaves, and Fuzhuan brick tea, the orange peel exhibited a significant inhibition of c-di-GMP generation. The extract of tea leaves had a minor influence on the synthesis of c-di-GMP, whereas Fuzhuan brick tea, which is fermented by various microorganisms, inhibited the production of c-di-GMP. Our constructed transgenic strains could be used to screen for antibacterial agents from forest plants. Beyond antibacterial agents, other functional compounds from forest plants could be selected by designing diverse riboswitches. Full article
(This article belongs to the Special Issue Advances in the Cultivation, Protection and High-Value Utilization of Forest Resources)
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13 pages, 8319 KiB  
Article
Antioxidant Activity and Volatile Oil Analysis of Ethanol Extract of Phoebe zhennan S. Lee et F. N. Wei Leaves
by Liping Yu, Wang Cheng, Meifen Tian, Zhigang Wu, Xiaoli Wei, Xing Cheng, Mingwei Yang and Xuan Ma
Forests 2024, 15(2), 236; https://doi.org/10.3390/f15020236 - 26 Jan 2024
Viewed by 676
Abstract
The medicinal value of P. zhennan has been documented in traditional Chinese medicine books. The aim of this paper was to study the antioxidant activity of alcoholic extracts of P. zhennan leavesusing 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2-phenyl-4,4,5,5-tetramethylimidazolineoxyl-1-oxyl-3-oxide (PTIO) radical scavenging and ferric ion reducing [...] Read more.
The medicinal value of P. zhennan has been documented in traditional Chinese medicine books. The aim of this paper was to study the antioxidant activity of alcoholic extracts of P. zhennan leavesusing 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2-phenyl-4,4,5,5-tetramethylimidazolineoxyl-1-oxyl-3-oxide (PTIO) radical scavenging and ferric ion reducing antioxidant power (FRAP) assays. The active components of the leaves were identified via headspace solid-phase microextraction and gas chromatography–mass spectrometry (HS-SPME-GC-MS). The results showed that the scavenging rate of DPPH was 94.67%with an EC50 value of 0.674 mg/mL at a concentration of 2 mg/mL. The maximum scavenging rate was 47.40% at a Trolox equivalent of 0.33 mg TE/mL for PTIO radicals. The FRAP reached 84.80% at 0.20 mg/mL concentration. The results confirmed the strong antioxidant activity of the extracts. Furthermore, 44 compounds, mostly terpenoids, obtained from the alcoholic extracts of P. zhennan leaves were analyzed using HS-SPME-GC-MS and 15 of these compounds had a relative content exceeding 1%. The strong antioxidant activity of the alcoholic extracts of P. zhennan leaves could be attributed to the presence of copaene (33.97%), β-caryophyllene (4.42%), δ-cadinene (11.04%), γ-muurolene (4.78%), cis-calamenene (2.02%), linalool (1.04%), α-pinene (1.46%), borneol acetate (1.5%), and γ-terpinene (0.66%). This study demonstrates the potential medicinal value of alcoholic extracts of P. zhennan leaves. Full article
(This article belongs to the Special Issue Advances in the Cultivation, Protection and High-Value Utilization of Forest Resources)
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19 pages, 5093 KiB  
Article
Evaluation of Fine Root Morphology and Rhizosphere Environmental Characteristics of the Dioecious Idesia polycarpa Maxim
by Zhi Li, Yi Yang, Jian Feng, Sohel Rana, Shasha Wang, Huimin Wang, Tao Zhang, Yanmei Wang, Gaiping Guo, Qifei Cai, Xiaodong Geng, Qiupeng Yuan, Chao Miao, Li Dai and Zhen Liu
Forests 2024, 15(2), 234; https://doi.org/10.3390/f15020234 - 25 Jan 2024
Cited by 1 | Viewed by 744
Abstract
To explore the differences in the fine root characteristics and rhizosphere environment of male and female Idesia polycarpa Maxim at different stages, 7-year-old male and female I. polycarpa were used as plant materials. The fine root characteristics were measured with a root scanner, [...] Read more.
To explore the differences in the fine root characteristics and rhizosphere environment of male and female Idesia polycarpa Maxim at different stages, 7-year-old male and female I. polycarpa were used as plant materials. The fine root characteristics were measured with a root scanner, and rhizosphere soil was collected at the flowering stage (May), fruit accumulation stage (July), and fruit maturity stage (October). In addition, this study analyzed the soil nutrient characteristics of these conditions at different stages. At the same time, Illumine high-throughput sequencing technology and gas chromatography–tandem mass spectrometry (GC–MS) technology were used to analyze the rhizosphere microbes and metabolites of male and female plants at different stages. The results showed that the total root length, surface area, total volume, root tip number, and total average diameter of the fine root of female plants were larger than those of male plants, and the difference reached its maximum in the fruit material accumulation stage. Total carbon (TC) and total nitrogen (TN) content in the rhizosphere soil of male and female plants significantly differed over multiple stages, while available soil nitrogen and potassium content significantly differed during fruit ripening. The rhizosphere microbial composition of male and female plants was similar, and the dominant bacteria in the rhizosphere soil of each stage were Proteobacteria, Acidobacteria, Ascomycota, and Mortierellomycota. The relative abundance of Bacillus, Arthrobacter, Volutella, and Neocosmospora in rhizosphere soil at different stages differed between male and female plants. Combined with the OPLS-DA model and database retrieval, 29 significantly different metabolites, most of which were carbohydrates, were detected in the rhizosphere soil of male and female plants. Moreover, there were more significant metabolites in the rhizosphere soil at the flowering stage than in the fruit ripening stage. Through RDA analysis, available potassium (AK), Pedomicrobium, Chaetomium, and Glucose 1 had the greatest influence on fine root traits of I. polycarpa. The results indicated that the fine root traits were negatively correlated with AK and rhizosphere metabolites. Moreover, positive correlations were found with rhizosphere microorganism traits. The above results laid a foundation for the field management of I. polycarpa and the screening and application of rhizosphere growth-promoting bacteria resources. Full article
(This article belongs to the Special Issue Advances in the Cultivation, Protection and High-Value Utilization of Forest Resources)
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18 pages, 6815 KiB  
Article
Crosslinking Mechanism of Tannin-Based Adhesives Based on Model Compounds: Copolycondensation of Resorcinol with Dimethylol Urea
by Jiankun Liang, De Li, Xiao Zhong, Zhigang Wu, Ming Cao, Guifen Yang, Shuang Yin and Feiyan Gong
Forests 2024, 15(1), 98; https://doi.org/10.3390/f15010098 - 04 Jan 2024
Viewed by 924
Abstract
This study focuses on the competition reaction rules of a system containing resorcinol (as a tannin model compound) and dimethylol urea (as a urea–formaldehyde resin model compound) under various alkaline and acidic environments. The aim is to investigate the crosslinked modification mechanism of [...] Read more.
This study focuses on the competition reaction rules of a system containing resorcinol (as a tannin model compound) and dimethylol urea (as a urea–formaldehyde resin model compound) under various alkaline and acidic environments. The aim is to investigate the crosslinked modification mechanism of urea–formaldehyde resin with tannin adhesive. The study delves into the competitive relationship between self-condensation polymerization reactions and co-condensation polymerization reactions. It specifically highlights the conditions for the copolycondensation reaction of dimethylolurea and resorcinol and validates its rationality through an examination of the resorcinol–urea–formaldehyde system’s reaction rules. The results show that (1) under strongly acidic conditions, the activity of carbocation intermediates produced by hydroxymethyl resorcinol for the resorcinol phenol ring is higher than the electrophilic reactivity of nitrogen atoms on hydroxymethyl urea, which is more beneficial for the resorcinol–formaldehyde self-polycondensation reaction, and the co-polycondensation structures do not play a dominant role. (2) Under weakly acidic conditions, the co-polycondensation structures are evidently advantageous over self-polycondensation structures, and the degree of the co-polycondensation reaction is positively correlated with pH below the neutral point of resorcinol. (3) Under alkaline conditions, the self-polycondensation between resorcinol and formaldehyde is dominant in the system. (4) The concentration of hydroxymethyl urea carbocation is the key factor to determine the degree of the co-polycondensation reaction. Full article
(This article belongs to the Special Issue Advances in the Cultivation, Protection and High-Value Utilization of Forest Resources)
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