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Tervetuloa käyttämään Jukuria, Luonnonvarakeskuksen (Luke) avointa julkaisuarkistoa. Jukurissa on tiedot Luken julkaisutuotannosta. Osa julkaisuista on vapaasti ladattavissa. Luken muodostaneiden tutkimuslaitosten aikaisemmasta julkaisutuotannosta osan tiedot ovat järjestelmässä jo nyt ja kattavuus paranee jatkuvasti.

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The effects of prescribed burning on vegetation growth in Pinus yunnanensis forests
Xu, Yunting; Zhang, Zihan; You, Chengming; Song, Ting; Xing, Jinmei; Gao, Wuchao; Li, Yuan; Lopatin, Evgeny; Dai, Dachuan; Cui, Xinglei
New forests : 5 (Springer Nature, 2026)
Effects of partial dehydration methods on high-moisture forages chemical composition
Lima, Nicole S.A.; Quirino, Daiana F.; Franco, Marcia O.; Detmann, Edenio
Animal feed science and technology (Elsevier, 2026)
This study evaluated whether partial dehydration methods alter the chemical composition of high-moisture forages. Two experiments were conducted. In Experiment 1, 20 maize silage samples were subjected to freeze-drying, forced-air oven drying, forced-air oven drying preceded by a microwave preheating step, or microwave drying. In Experiment 2, 28 forages (silages, fresh grasses, and fresh legumes) were evaluated using freeze-drying, forced-air oven drying, microwave drying, or air-fryer drying. Method effects were assessed based on water removal efficiency, nitrogenous and fibrous compound profiles, in vitro digestibility, indigestible fibre, and colorimetric properties. Microwave and air-fryer drying removed less water than freeze-drying and resulted in greater differences in nitrogenous compound concentrations and profiles, including apparent N volatilisation and greater concentrations of detergent-insoluble nitrogen. Heat application inconsistently affected fibrous components but consistently reduced in vitro dry matter digestibility without altering in vitro fibre digestibility, likely reflecting starch retrogradation and production of heat-derived artefacts soluble in neutral detergent. These modifications were most pronounced in fresh forages, indicating an interaction with their chemical matrix. Among heat-based methods, forced-air oven drying produced the least chemical alteration. Overall, heat application during partial dehydration modifies the chemical characteristics of high-moisture forages, and when freeze-drying is not feasible, forced-air oven drying best preserves the original sample composition.
Beneficial Roles of Microorganisms in Woody Plant Micropropagation
Cantabella, Daniel; Varis, Saila; Prieto-Fernández, Ángeles; Christie, Bruce; Vidal, Nieves; Sota, Valbona (toim.); Lambardi, Maurizio (toim.); Vidal, Nieves (toim.); Werbrouck, Stefaan P.O. (toim.)
Next-Generation In Vitro Strategies in Woody Plant Cloning (Springer Nature Switzerland, 2026)
Plants coexist with microorganisms throughout all stages of their life, and micropropagated plants are no exception. Currently, micropropagation laboratories are increasingly seeking to understand and harness the benefits of plant–microbe interactions, which range from mutualism to antagonism, to improve culture performance. In this chapter, we will first take a brief look at the types of microorganisms that live inside plants and how they interact with them in vivo and then discuss some examples of their beneficial use during different stages of in vitro cultivation of woody plants. We can conclude that including microorganisms in micropropagation can improve plant growth, root quality, and successful acclimatization, along with other important characteristics, such as preparing trees to withstand ex vitro challenges like abiotic stress or tolerance to pathogens under field conditions. The application of biotechnology to plant–microorganism interactions has other ecological and economic advantages, such as improving crop sustainability, the bioremediation capacity of plants, along with others such as increasing truffle production and producing bioactive substances of interest to other fields. Although its application is not without challenges and risks, there are still opportunities and benefits to explore and exploit.
A Simplified High‐Performance Liquid Chromatography–Mass Spectrometry Method for Quantifying Soluble Sugars in Plant Leaves: Comparative Extraction Evaluation With Improved Sensitivity
Adamczyk, Sylwia; Adamczyk, Bartosz
Separation Science plus : 3 (Wiley, 2026)
The development of rapid and reliable methods for soluble sugar analysis is essential for routine applications in plant physiology, ecology, and agriculture. Conventional techniques for sugar quantification often require dedicated detectors, derivatization steps, or lengthy sample preparation, limiting throughput and sensitivity. This study presents a fast, high-performance liquid chromatography–mass spectrometry method for the simultaneous determination of sucrose, glucose, and fructose in plant leaves. Chromatographic separation was achieved on a Rezex column with gradient elution, and detection was performed in negative electrospray ionization mode using selected ion recording. The method demonstrated excellent linearity (R2 ≥ 0.99), high precision (coefficient of variation ≤ 2%), and recoveries of 98%–102%. Limits of detection and quantification were 0.8 and 1.6 µg mL−1, respectively, markedly improving sensitivity compared to conventional ultraviolet- or refractive index-based approaches. Several extraction protocols were evaluated, including water, methanol, and ethanol under thermal or ultrasonic conditions. Ultrasonic extraction with ultrapure water provided the highest efficiency, minimal matrix effects, and simplified sample preparation. The optimized workflow enables the preparation of multiple samples within a single day and overnight chromatographic analysis, offering a practical, cost-effective, and high-throughput solution for routine soluble sugar quantification in plant tissues.
Kun ruoan reitti tulee näkyväksi, myös ymmärrys ruoantuotannosta kasvaa
Yli-Viikari, Anja; Hartikainen, Merja; Smeds, Pia
Luonnonvarakeskus : 3.8.2026 (2026)