全國中小學科展

一等獎

建立檢測化學壓力新型模式生物-大生熊蟲實際應用與耐受機制探討

本研究是評估大生熊蟲( Macrobiotus sp.)檢測小白菜混合化學壓力的應用潛能。目前已建立大生熊蟲檢測實際環境化學壓力方法,若以正常活動樣本檢測化學壓力需24小時獲得結果;但乾燥隱生樣本則能在2小時內獲得檢測結果,每週檢測1次,至少可重複6次檢測,所以隱生大生熊蟲最適合在符合生物倫理準則之下檢測化學壓力。 探討大生熊蟲檢測實際化學壓力時耐受機制,發現大生熊蟲在小白菜萃取液隱生時,其100、50與40~50 kDa蛋白質單體表現量顯著增加,另外自乾燥隱生恢復活動時40~50 kDa單體表現量亦顯著提升,未來將以LC MS/MS分析其蛋白質種類與功能。藉由加熱實驗的總抗氧化能力數據確認大生熊蟲能以酵素與非酵素抗氧化系統對抗實際化學壓力,未來將探討對抗常見抗氧化物質的單一酵素活性。目前尚未成功分析大生熊蟲常見抗氧化基因表現量,本研究會持續改良設計出合適的primer與目標基因黏合,分析表現量。檢測其脂質含量則發現,大生熊蟲在實際化學壓力下隱生、乾燥隱生以及自隱生恢復活動階段體內脂質含量顯著增加。

探討神經細胞特異性磷酸化PaxillinS119的進核機制與其對 RNA剪接的調控

神經細胞成熟的過程中可分成數個階段,每個階段間的轉換都伴隨著蛋白質的種類,RNA異構體、細胞結構與功能等全面性的轉變。但控制神經細胞在確切的時序下成熟的分子機制尚待研究。本研究發現 Paxillin 的新功能:當腦神經細胞在活體外培養至第七天時, Paxillin 的位點 Serine119 會被磷酸化 (p-PaxillinS119),並從細胞質轉位進入至細胞核。我們使用 N2a 細胞以神經分化的模式來探討 p-PaxillinS119 進核的分子機制與功能,發現 p-PaxillinS119 進入細胞核需要位點 Serine119 被磷酸化,且分析後確認 Paxillin 的 LIM 結構域中帶有 PY-NLS 序列,分別為 P516/Y517 及 P575/Y576。我們發現 Paxillin 藉由轉運蛋白 Importin β2 辨識其 PY-NLS序列,進行蛋白間的交互作用後進入細胞核中。從螢光影像的分析,我們觀察到神經細胞的 p-PaxillinS119 在細胞核中會呈現顆粒狀,並與 RNA 剪接因子 P-SR 共定位在核斑點上。經由免疫共沉澱與細胞轉染的方式,我們證實位點 Serine119 突變,會影響 Paxillin 與 RNA 剪接因子的交互作用,及降低細胞分化與 RNA 剪接的程度。

果蠅緯度相關晝夜節律特徵:穩定性、活動量分佈與演化意義 Latitude-Dependent Circadian Traits in Drosophila: Stability, Activity Peaks, and Evolutionary Implications

生物時鐘可對生物體的行為與生理造成影響,在探討晝夜節律特徵的差異時,過去研究常侷限於北美大陸的品系,缺少赤道及南半球品系的晝夜節律特徵探討。有鑒於黑腹果蠅在全球各大洲的廣泛分佈,因此我們以黑腹果蠅(近赤道與中高緯度品系)為材料,研究果蠅是否因緯度而有相異的晝夜節律特徵?結果顯示不同緯度的果蠅品系展現出相異的晝夜節律特徵。赤報品系在全暗狀態下仍維持原本光暗12小時的穩定節律,而南北半球的中高緯度品系則具有相似節律特徵,即在全暗狀態下的節律不對齊原本正常光源的穩定節律,其他如活動量、週期、及節律強度等皆有著品系間的差異。更進一步比對實驗中各個品系基因序列,研究發現per和tim在調控區段有許多SNP變異,顯示其與晝夜節律特徵的關係,有助於後續尋找更多造成晝夜節律特徵差異的可能遺傳變異並探討。

BeeMind AI: Development of an AI-Based System to Assess Honeybee Health, Behavior, and Nutrient Effects on Learning and Memory

Due to their pollination services, honeybees are one of the most ecologically vital animals, being singlehandedly responsible for nearly 80% of global agricultural pollination [1]. However, in recent years, they have experienced large declines in populations, and as a survey reported roughly 50% of beekeepers in the US lost their honeybee colonies [2]. These losses are experienced globally due to a combination of many factors, including but not limited to habitat loss, pesticides, climate change, and other invasive species [3, 4]. One of the biggest factors attributed to the decline of honeybee colonies is the usage of pesticides, specifically neonicotinoids [3-6]. Neonicotinoid compounds have been used globally since their introduction in the early 1990s [4]. Studies have shown that neonicotinoids can have both sublethal and lethal effects on honeybees, depending on the dosages that they are exposed to, as neonicotinoids bind to nervous system receptors of honeybees [7]. These effects can range from behavior changes to altered motor functions [7-9]. Among the reported effects, one of the more significant ones is the effect of neonicotinoids on honeybee learning and memory [10, 11]. Additionally, there is a lack of availability for methods of monitoring of honeybee hives, essentially meaning that the only methods to track honeybee health are through obtrusive physical methods of inspection. This paper aims to develop a novel AI-based honeybee health assessment system, able to monitor beehives using the following functions: continuous temperature and humidity monitoring both inside and outside the hive, as well as video and audio recording to assess honeybee health as well as population. In addition, this system can be used for honeybee-related studies such as nutrition effects and evaluation on health, learning, and memory. To do this, four types of nutrition have been studied and their effects have been analyzed by a deep learning approach.

猜拳與轉向中的運籌帷幄- 探討人類與鼠婦在連續決策行為 的偏好與決策經驗依賴等特性

本研究記錄人類進行「剪刀石頭布」遊戲時的決策行為,也設計T型迷宮建立鼠婦之負趨光行為作為動物模式,探討行為偏好與決策依賴性等特性。我們發現「出石頭」的機率較高,且時間間隔縮短後,「出剪刀」的機率增加而「出石頭」的機率減少,並會展現負相關的決策經驗依賴性,其中「慢出組」更為明顯,代表出拳間隔縮短而減少意識作用,負相關的決策經驗依賴性即會減弱。另一方面,鼠婦在負趨光性刺激剛消失後,仍呈現負趨光性的選擇方向,具有習慣性。鼠婦在選擇行走方向多次後,會呈現與前次選擇的正向相關性。在負趨光性的環境刺激後,上述的現象會先消失,而後再現。若負趨光性刺激方向轉換,則原先的趨光行為消失,應是因方向選擇的習慣性干擾了負趨光性的選擇。

探討濕地耐鹽菌對植物耐鹽及根部的交互作用

本研究從濕地篩選出可能為新種的耐鹽菌Oceanobacillus sp.,暫命名為OC2,其在無植物相伴狀態下不會降低土壤含鹽量,但卻在與植物共存後誘發特殊機轉,促使土壤含鹽量降低約,並提升植物耐鹽能力,顯示 OC2與植物存在特殊交互作用。深入研究發現,OC2能產生IAA,並吸引植物根部向其生長以利其進入根部,並在鹽逆境下分泌代謝物以刺激植物合成脯胺酸 (增加達98.5%)提升根部滲透壓、增加葉片類胡蘿蔔素及類黃酮含量以提升植物抗氧化力。植物方面,鹽逆境下植物分泌的化學物質會觸發OC2產生更多的IAA(約17%),藉以刺激植物根系發展以利水分吸收,而OC2的存在會促進根部澱粉酶活性上升達88%,以分解澱粉產生可溶性醣類供OC2使用,推測兩者存在共生關係。本研究展示新種耐鹽菌與植物的交互作用,期待透過此菌改善鹽化農地並能提升作物產量。

KidneyLifePlus+ : Retinal Imaging Analysis for Kidney Disease Risk Assessment

Chronic kidney disease (CKD) represents a significant public health challenge, often referred to as a “silent disease” due to its asymptomatic progression during early stages (1–2). Consequently, most diagnoses occur during advanced stages (3 and beyond), where treatment options are more complex and outcomes are less favorable. Globally, CKD affects over 850 million individuals, with 434.3 million cases in Asia alone. Despite its prevalence, early-stage awareness remains alarmingly low, with only 5% of affected individuals aware of their condition. Existing screening methods are predominantly hospital-based, expensive, and time-intensive, limiting their accessibility, particularly in resource-constrained settings. This underscores an urgent need for more accessible and efficient diagnostic tools to enable early intervention. In response to this critical problem, we developed KidneyLifePlus+, an AI-powered platform that leverages advanced machine learning models, including U-net, ResNet-50, and YOLO v8, to analyze retinal images for early CKD detection. These models are integrated to ensure high screening accuracy by identifying subtle biomarkers indicative of CKD progression. Complementing the software, we designed proprietary hardware capable of capturing high-resolution retinal images, delivering performance comparable to hospital-grade equipment. By ensuring affordability and ease of use, the system extends screening capabilities beyond clinical environments, making it suitable for deployment in community healthcare settings. KidneyLifePlus+ addresses key limitations of traditional methods by offering a rapid, cost-effective, and highly accurate diagnostic solution. The platform’s potential to enhance early detection rates could significantly improve clinical outcomes and quality of life for CKD patients. Furthermore, this innovation contributes to global efforts to reduce the burden of CKD by promoting equitable access to diagnostic services, particularly in underserved regions.

Reviving Resources: Harnessing Soap Nut Greywater for Sustainable Plant Growth

Due to widespread water shortages, there is an increasing need for innovative water conservation strategies, such as reusing greywater from laundry. The World Health Organization (WHO) recognizes greywater as suitable for plant irrigation, but commercial laundry detergents contain synthetic chemicals that can harm both the environment and plant health. Soap nuts, derived from the Sapindus mukorossi tree, offer a natural alternative. Their pericarp is rich in triterpenoid saponins, amphiphilic compounds, composed of hydrophilic sugar group and hydrophobic triterpenoid sapogenins. These saponins mimic the chemical structure of surfactants in detergents, allowing soap nuts to act as natural foaming and surface-active agents in water. As a result, soap nuts have long been used as a sustainable option for shampoo and laundry detergent in many Asian countries (Sochacki & Vogt, 2022). Greywater, an often overlooked resource, is generated from household activities like laundry, showers, and basins. Unlike blackwater, it contains lower levels of pathogens and bacteria. However, due to a lack of awareness, greywater is frequently mixed with blackwater and directed to the same sewage treatment systems (Greywater Systems: From Recycling to Filtration, n.d.). Greywater accounts for 50-80% of a household’s daily wastewater (Wong, 2011). Repurposing greywater offers a promising and sustainable solution to address water conservation challenges.

基於特徵解耦的視覺轉換器之指靜脈辨識模型

發展安全且可靠的身份辨識技術是當今的重要議題,而指靜脈因其高安全性及難以偽造特性成為我們的主題。本研究提出一種基於Transformer模型架構的指靜脈辨識模型稱為GLA-FD,旨在解決現有技術對指靜脈影像特徵表示與提取的局限性。透過開發特徵解耦與重建模組(FDRM),模型能夠有效區分指靜脈的背景資訊與紋理特徵,並將其重新組合以提升辨識準確度。此外,本研究開發的全域-局部注意力模組(GLAM)能同時捕捉影像的全域與局部特徵,進一步強化模型對指靜脈特徵的理解。GLA-FD在FV-USM、PLUSVein-FV3、MMCBNU-6000、UTFVP、NUPT-FPV 資料集中的正確辨識率(CIR)達到100%、98.47%、99.75%、96.11%、99.82%,展現卓越的穩定性與泛化能力。此外,本模型在處理不同年齡層、國籍與影像模糊度的資料下,仍能保持高辨識準確度,顯示其在需要高安全性辨識的應用場景中具備廣泛的實用性。

Decoding Climate Resilience: Functional Profiling of Protein Phosphatase 2C Family Genes for Abiotic Stress Tolerance in Rice

Problem • Rice is the primary cereal crop consumed by nearly half the population worldwide • By 2050, there will be a 50% increase in demand for rice • The world’s poor populations depend more on rice, both for income and consumption, than any other food. Rice is the single-largest source of employment and income for rural people • Worldwide, 51–82% of agricultural crop yield is lost annually due to abiotic stress due to climate change • Climate change causes extreme temperatures, erratic rainfall, dangerous droughts, and increased salinity from rising sea levels Solution • To adapt to abiotic stress, rice has intricate signaling pathways, particularly those mediated by the phytohormone abscisic acid (ABA), that cause an increase in stress tolerance • Clade A genes of the Protein Phosphatase 2C (PP2C) gene family are known to be negative regulators of the ABA signaling pathway. • “Deleting” these genes activates the ABA pathway and increases stress tolerance in rice without inducing stress CRISPR gene editing technology is the ideal solution Research Goal • While the role of PP2C genes in stress response is recognized, there is a gap in understanding the specific genes within this family that contribute significantly to stress signaling. Furthermore, there is a need for a detailed investigation into the effects of targeted CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) genome editing on rice stress response pathways.