Results 21 to 30 of about 6,400 (160)

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

福建梅花山国家级自然保护区常绿阔叶林的群落学特征 [PDF]

open access: yes, 2011
福建梅花山国家级自然保护区的常绿阔叶林是典型的中亚热带常绿阔叶林之一.9 600 m2样地的调查与分析表明:群落内共有维管束植物258种,其中种子植物228种,隶属于87科156属,植物的科属组成丰富.群落内区系地理成分复杂,热带与泛热带植物区系成分比例明显大于温带与泛温带区系成分,具热带亚热带性质.群落中,中小型革质、全缘、单叶、常绿、木本、高位芽植物是决定其外貌主要因素.群落成层现象明显,可分为2个乔木亚层、1~2个灌木亚层和草本层,层间植物较为丰富.通过不同区域常绿阔叶林的比较 ...
孔祥海, 李振基
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Using miniaturized laboratory equipment and DNA barcoding to improve conservation genetics training and identify illegally traded species

open access: yesConservation Biology, EarlyView.
Abstract Illegal wildlife trade (IWT) is one of the largest global illegal activities, and it negatively affects biodiversity and sustainable development worldwide. DNA barcoding coupled with high‐throughput sequencing (i.e., metabarcoding) is useful in identifying taxa affected by IWT and has been used routinely for decades.
Maria Joana Ferreira da Silva   +9 more
wiley   +1 more source

In vitro culture, cryopreservation, and field reintroduction of the endangered Mingan thistle

open access: yesConservation Biology, EarlyView.
Abstract Current plant conservation efforts are hindered by, for example, poor seed germination, low viability, and insufficient propagation and preservation technologies. To address these problems, we devised an approach to plant conservation that integrates conservation, preservation, and restoration (CPR), which uses advanced in vitro techniques. We
Mukund R. Shukla   +4 more
wiley   +1 more source

福建邵武将石地区维管束植物区系分析 [PDF]

open access: yes, 2006
福建邵武将石地区的植物区系处于泛北极植物区,中国-日本森林植物亚区的华东地区,有维管束植物173科461属915种(含种下单位).该区植物种类丰富,具有许多珍稀、古老、孑遗植物成分.在科、属水平上对其区系特征进行了分析,结果表明:热带分布类型的科占绝对优势,共77科,占53.1%;温带分布类型有37科,占25.5%;属的区系成分中,属的热带分布类型计197属,占区总属数的52.2%,温带分布类型共有169属,占44.9%.可见该植物区系的热带、亚热带成分占主导地位,温带成分次之 ...
侯学良, 李振基, 林鹏, 陈俊德
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Genomic responses to increased temperature and pollinator selection in Brassica rapa L.

open access: yesNew Phytologist, EarlyView.
Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
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

牛姆林自然保护区常绿针阔叶混交林群落特征初探 [PDF]

open access: yes, 2002
对福建省牛姆林自然保护区常绿针阔叶混交林的区系组成、地理成分、垂直结构、物种多样性等特征研究结果表明,该混交林群落维管植物种类组成丰富,600m~2样地内有38科62属119种,其中以常绿高位芽植物占绝对优势;种子植物地理成分中热带性质属37属占64.91%,温带成分19属占33.33%;群落分层现象明显,乔木层可分4个亚层,乔、灌木及藤本植物种类和数量均丰富,草本植物较少;比较群落各部分多样性水平为灌木层>乔木层>草本层 ...
严重玲   +3 more
core  

SWEET1‐mediated glucose transport is crucial for energy availability in Arabidopsis

open access: yesNew Phytologist, Volume 249, Issue 4, Page 1816-1830, February 2026.
Summary The stress‐responsive hormone abscisic acid (ABA) is known for its inhibitory effects on various physiological processes, including seed germination, often resulting in energy deprivation. Interestingly, ABA‐induced germination inhibition can be alleviated by exogenous glucose (Glc), mimicking a functional interplay between ABA and sugar ...
Xueyi Xue   +3 more
wiley   +1 more source

Comparison of the Typical Monsoon Evergreen Broad-leaved Forest Communities between Fujian and Taiwan [PDF]

open access: yes, 2012
本研究对福建虎伯寮自然保护区和溪保护小区和台湾莲华池试验所两地的典型季风常绿阔叶林群落进行比较研究。分析两样地群落的结构特征、物种多样性和区系特征,比较两群落的异同。研究主要结论如下: (1) 和溪样方共出现维管束植物56科80属118种。莲华池样方共出现维管束植物40科64属82种。和溪样地的群落为红锥+淋漓锥群落,莲华池样地的群落为南投柯+茜树群落。两群落均由建群层、次冠层、灌木层和草本层组成。 (2) 两群落的灌木层密度均高于其它层。和溪样方的乔木层平均胸径、最大胸径等指标高于莲华池样方 ...
巫渭欢
core  

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