Results 21 to 30 of about 1,686,075 (164)

Symbiotic Germination Technique of an Endangered Epiphytic Orchid Dendrobium sinominutiflorum: A Promising Conservation Application 濒危附生兰科植物勐海石斛 (Dendrobium sinominutiflorum) 的共生萌发技术:一种具有应用前景的保护策略

open access: yesIntegrative Conservation, Volume 5, Issue 2, Page 192-204, June 2026.
We developed an effective ex‐situ conservation approach for an endangered orchid species, Dendrobium sinominutiflorum. A compatible fungal strain Tulasnella sp. was obtained by using in‐situ seed baiting technique. The Symbiotic germination with Tulasnella sp. significantly promotes seed germination and seedling growth.
Han‐Xiao Huang   +6 more
wiley   +1 more source

峨边黑竹沟植物区系研究(一)

open access: yes四川大学学报. 自然科学版, 1996
对黑竹沟植物进行了初步考察表明:该区产维管束植物116科352属约1100种.其中蕨类植物16科22属约60种;裸子植物5科9属9种;被子植物95科321属约1000种.其区系成分主要以北温带分布和东亚分布为主 ...
何明友   +5 more
doaj  

Newly recorded species of the genus Rubus (Rosaceae) in Sichuan(四川蔷薇科悬钩子属植物新记录)

open access: yesZhejiang Daxue xuebao. Lixue ban
∶蔷薇科Rosaceae悬钩子属Rubus是一类重要的资源植物,可食用、药用及作为观赏植物等。在整理和鉴定相关标本过程中,发现川产悬钩子属植物分布新记录2种2变种,为小果秀丽莓R. amabilis var. microcarpus、三叶悬钩子R. delavayi、刺萼红花悬钩子R. inopertus var. echinocalyx和锈毛莓R. reflexus。将浅裂锈毛莓R. reflexus var. hui归并至锈毛莓R. reflexus var.
刘超(LIU Chao)   +1 more
doaj   +1 more source

First Documentation of Two Rare Fern Species in Xishuangbanna National Nature Reserve, Yunnan, China

open access: yesIntegrative Conservation, Volume 5, Issue 2, Page 173-176, June 2026.
We report two rare ferns in Menglun Sub‐reserve in Xishuangbanna National Nature Reserve, Yunnan Province, China. These represent the first documented distribution of the previous Laotian endemic fern species in Yunnan and China as well. Our observations confirmed the shared plant diversity in China‐Laos border and also represent the need for more ...
Hongmei Liu   +3 more
wiley   +1 more source

3D Printed High‐Strength Hydrogel for Dual Release of Cu2+ and Ag+ Ions to Enhance Bone Repair and Antibacterial Properties

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Bone restoration is often hindered by the spatiotemporal dysregulation of immune and regenerative signals. Conventional bio‐inert implants, providing only passive support, fail to modulate this microenvironment, leading to infections and poor healing.
Zhizhong Sun   +8 more
wiley   +1 more source

龙滴水自然保护区种子植物区系分析

open access: yes四川大学学报. 自然科学版, 2006
根据野外调查资料和历史文献资料,初步分析龙滴水自然保护区有种子植物116科,499属,1181种,其中裸子植物6科,14属,36种;被子植物110科,485属,1145种.种子植物科的区系成分有12个类型,以热带广布成分为主,达35科,占总科数的43.75%;属的区系成分有15个类型,以北温带分布为主,有150属,占总属数的32.89%;中国特有分布属共19属,占总属数的4.17%.
周颂东, 王强, 何兴金, 岳碧松
doaj  

Titanium Implant Abutments With Polydopamine‐Mesoporous Cerium Dioxide Coatings for Enhanced Antibacterial, Anti‐Inflammatory, and Soft Tissue Integration Properties

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The poor soft tissue integration around titanium implants creates a microgap that serves as a pathway for pathogen invasion, resulting in infection, inflammation, and the progression of peri‐implantitis. As the implant’s transmucosal component, the abutment determines the degree of peri‐implant soft tissue attachment.
Xuan Li   +7 more
wiley   +1 more source

Rapid construction of insect–plant interaction networks via multiplexed long‐fragment DNA metabarcoding and NGS

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 6, Page 1896-1909, June 2026.
Abstract Molecular identification of insect food webs can accurately reveal complex trophic interactions and serve as a foundation for understanding ecosystem functioning and advancing biodiversity conservation. This process typically involves DNA library construction, high‐throughput sequencing and subsequent steps, including data assembly, annotation,
Xiao‐man Zhang   +9 more
wiley   +1 more source

荒漠草原不同放牧制度群落稳定性研究

open access: yesShuitu Baochi Xuebao, 2003
在短花针茅荒漠草原,对比研究了不同放牧制度群落植物重要值和多样性,研究结果表明:划区轮牧和对照区重要值较高的植物为短花针茅、无芒隐子草、碱韭和糙隐子草,自由放牧区1年生植物重要值较高;2002年Shannon-Wiener、Simpson和Pielou群落多样性指数自由放牧区偏高于轮牧区,但从3种指数的影响因子重要值的分布上看,轮牧区主要分布在建群种和优势种上,自由放牧区分布在建群种、伴生种和1年生植物上,可以认为轮牧条件下群落环境更稳定.
卫智军, 杨静, 杨尚明
doaj   +2 more sources

丫蕊花(Ypsilandra thibetica Fr)营养器官形态解剖及气孔复合体发育的初步观察

open access: yes四川大学学报. 自然科学版, 1983
前言百合科植物种类繁多,分布极广,由于适应各种不同的环境而形成了多种多样的营养体结构.百合科是单子叶植物中一个变化大的科,较难追究各类群之间的亲缘关系.但是,百合科植物在单子叶植物的系统发育中占有极重要的地位.根据哈钦森、恩格勒及Cronquist分类系统,均认为它们是单子叶植物在演化上的中心环节.Cheadle等曾在《单子叶植物维管束类型及后生木质部组成分子描述》一文中提出导管起源于管胞的论点;“导管首先发生在根中,然后逐渐地自下而上地发展,出现在植物体的其它部分,直到花葶、叶中出现导管 ...
郑学经   +4 more
doaj  

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