Results 21 to 30 of about 23,080 (207)
Lithology modulates soil priming effect via resource limitations and bacterial community structure
Functional Ecology, Volume 40, Issue 1, Page 176-190, January 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The soil priming effect (PE), triggered by root exudate inputs that stimulates microbial activity and drives significant soil carbon (C) losses in terrestrial ecosystems.
Xinyu Hou +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2008 对三江平原3种典型湿地(毛苔草湿地、小叶章湿地、岛状林湿地)的土壤酶活性、土壤养分进行了研究,探讨了不同湿地土壤酶与土壤养分及酶活性间的相关性。结果表明:不同湿地土壤酶活性和土壤养分含量有较大差异。土壤蔗糖酶、脲酶、过氧化氢酶、淀粉酶活性与土壤有机质、全氮、碱解氮含量变化趋势一致,表现为毛苔草湿地>小叶章湿地>岛状林湿地。酸性磷酸酶活性表现为岛状林湿地>毛苔草湿地>小叶章湿地;纤维素酶活性则表现为毛苔草湿地>岛状林湿地>小叶章湿地。经分析,土壤酶活性和养分密切相关,且酶活性间存在一定的相关关系,其中脲酶、
万忠梅, 宋长春
doaj
Different forms of nitrogen contents and their vertical variations of transformation modes of the sediments of Lake Yuehu, Wuhan [PDF]
, 2008 Vertical distributions of nitrogen contents, net nitrification rates, net N-mineralization rates and nitrate reductase activities in sediments of Lake Yuehu in June, 2005, were described on basis of four samples from the lake.
Chen Guoyuan +5 more
core
Integrative Conservation, Volume 4, Issue 4, Page 652-664, December 2025.We profiled nutritional and physiological markers in captive sifakas, endangered primates from Madagascar, managed in expansive, non‐native forest enclosures. Variation in many markers reflects freely foraged diets and the energy required to maintain homeostasis under more naturalistic conditions.
Lydia K. Greene +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2018 选用吊兰进行室内盆栽，研究在Cd污染土壤中，施用不同剂量磷肥对吊兰生理指标、土壤酶活性等的影响，为合理施用磷肥，提高Cd污染土壤的植物修复效果提供参考依据。结果表明：吊兰在100 mg/kg的Cd污染土壤中能正常生长，施P对吊兰的叶绿素、细胞膜透性、抗氧化酶活性影响显著（p蔗糖酶>磷酸酶。
潘芳慧, 张晓玮, 王友保
doaj
Screening and Cloning the Heavy Metal Tolerance-associated Genes in Avicennia marina (Forsk.) under Cadmium stress by Suppression Subtractive Hybridization [PDF]
, 2015 白骨壤(Avicenniamarina)作为红树林的先锋树种，广泛分布于海岸河口的低潮带，其独特的生物学和生态学特性为探索红树植物对重金属耐受性的分子机理提供了最佳的研究对象。红树林生态系统虽然承受大量重金属污染物胁迫，但对重金属污染物却表现出很强的耐受性和抗性，其中白骨壤对重金属的耐受性较其他红树植物更为突出。本研究以红树植物白骨壤为材料，研究重金属污染物镉(Cadmium)胁迫下的白骨壤幼苗基因表达差异，寻找与重金属耐受性相关的候选基因，并为红树植物的基因组研究建立相关的基因文库 ...
张骥诚
core
Reactive oxygen species act as signaling molecules to control root hair initiation and tip growth
New Phytologist, Volume 247, Issue 5, Page 2042-2048, September 2025.Summary Root hairs (RHs) increase the surface area of roots, facilitating nutrient and water uptake and plant anchorage. RHs form from root epidermal cells and elongate by polar tip growth. Reactive oxygen species (ROS) have recently been implicated as important signals that drive RH formation and elongation using both genetic and imaging approaches ...
Megan E. Gerber +2 more
wiley +1 more source
Noncovalent functionalization of two-dimensional graphene analogues for biomedical applications [PDF]
, 2016 类石墨烯二维材料（2D-GAs，比如过渡金属硫化物纳米片、g-C3N4、Bi2Se3和黑磷等）由于其独特的成分、结构、理化性质和良好的生物相容性，在生物医学领域展现出前所未有的优势。2D-GAs的制备、表面功能化以及在纳米生物医学领域的应用是目前的研究热点，引起了材料、化学、物理、生物、医学等各个领域科学家的广泛兴趣。 本文对三种2D-GAs（Bi2Se3、MoS2和黑磷）分别进行了表面非共价功能化，探索了这三种2D-GAs在纳米生物医学中的应用。本文主要研究了以下几方面的内容： 一.探索了2D ...
彭健
core
Functional Ecology, Volume 39, Issue 8, Page 2149-2169, August 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants assemble beneficial rhizosphere microbiomes through a ‘cry for help’ mechanism upon pathogen or insect herbivore attack. The arbuscular mycorrhizal fungi (AMF) can influence the composition of microbial communities in the plant rhizosphere. However, their impacts
Yingde Li +6 more
wiley +1 more source
不同种植密度条件下两种穗型冬小麦品种根际土壤酶活性的动态变化
Shuitu Baochi Xuebao, 2007 在大田试验条件下，研究了2种穗型冬小麦品种在不同种植密度条件下根际土壤酶活性的动态变化。结果表明，随着生育时期的推进，两种穗型冬小麦品种根际土壤蛋白酶、过氧化氢酶和脲酶活性均呈先增高后降低的单峰曲线变化，拔节期和抽穗期活性较高，返青期和开花期活性则较低。不同种植密度条件下，豫麦49—198系根际土壤蛋白酶、脲酶活性均随密度增加呈先增高后降低的变化趋势，而过氧化氢酶活性表现不明显；兰考矮早八3种根际土壤酶活性随密度增加呈先降低后增高的变化趋势。不同密度水平下3种酶活性的方差分析表明，蛋白酶 ...
查菲娜 +5 more
doaj +2 more sources