干旱区生态环境知识资源中心(Arid): 隐花植物对UV-B辐射响应和适应机制的研究进展

Arid

	隐花植物对UV-B辐射响应和适应机制的研究进展
其他题名	Research advance on responsive and adaptive mechanism of Cryptogam to the increased UV-B radiation
	回嵘; 李新荣; 贾荣亮; 赵昕; 刘立超
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2012
卷号	35 期号:4 页码:623-630
中文摘要	隐花植物是指不产生种子的植物,是我国干旱、半干旱地区主要表面特征生物土壤结皮的组成成分,并在其中扮演着独特而重要的生态作用。隐花植物对环境因子变化的响应和适应能力大小对整个生态系统稳定性具有重要影响。因此,有关增强UV-B辐射对隐花植物影响的研究已成为目前UV-B辐射研究领域的发展趋势和热点之一。通过系统地综述国内外有关隐花植物对UV-B辐射响应和适应机制研究方面的进展,分析了研究趋势,讨论了目前该领域研究的一些不足并对未来发展提出了展望,以期促进隐花植物的研究,加深对我国干旱、半干旱区隐花植物在应对UV-B辐射增强的响应和适应机制的认识。
英文摘要	Cryptogam means nonseed-bearing plant;it is a constituent part of biological soil crust(BSC)the main characteristic on the surface in arid and semi-arid regions,which plays a vital role in ecosystem.According to diversity and difference of the dominated species in BSC,the cryptogam is mainly distinguished into three basic types: algae,moss and lichen.Because of their simple morphological and anatomical structures,the cryptogam is easily influenced by environments and often used as an indicator of environmental variations.So the response and adaptability of cryptogam to environmental factors is of great importance in the stability of the whole ecosystem.The increase in the intensity of ultraviolet radiation(mainly UV-B) invades land due to stratospheric ozone depletion resulted from human activities,made a series of impacts on terrestrial beings,it also effects the composition,structure and function of cryptogam to an even greater degree.Many studies have shown that enhanced UV-B radiation intensity made effects on growth development,photosynthesis,metabolism,antioxidant system and cell membrane of plants.Therefore,studies related to the effects of enhanced UV-B radiation on cryptogam has become a growing tendency and one of the hot spots in UV-B radiation research.The Cryptogam has very important eco-value in arid and semi-arid regions,which is the dominant component of BSC in desert region,It is also one of the evaluating index for ecosystem stability and restoration of degraded ecosystem.Now there are many reports about the researches concerned with the effects of UV-B on cryptogam and as a result the paper introduces the concerned domestic and international researches in this field,which include effects of cryptogam to enhanced UV-B radiation on biomass,photosynthetic ability,photosynthetic pigments,antioxidant enzymes activity,water-soluble protein content,DNA damage,fatty acids and so on.In order to understand the effects of UV-B radiation on the physiological properties of cryptogam,based on different kinds of cryptogam,the research progresses were systematically reviewed of the responsive and adaptive mechanism of cryptogam to enhanced UV-B radiation,and further some deficiencies were proposed in current studies and a prospect set out for the future researches to enhance the understanding on responsive and adaptative mechanism of cryptogam to increased UV-B radiation in arid and semi-arid regions of China.The conclusions are as follows: the effects of UV-B radiation are closely related to plant species,UV-B radiation and treatment time.It is significant to study enhanced UV-B radiation on cryptogam,which could be helpful to deepen our understanding on cryptogam and to promote the researches of its ecological functions and provide the theory basis for accurately predicating irthe effects in the arid and semi-arid areas in China under global elevated UV-B radiation.
中文关键词	藻类 ; 地衣 ; 保护色素 ; 适应机制
英文关键词	UV-B UV-B Algae Lichen protective pigments adaptive mechanism
类型	Review
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4638040
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228001
作者单位	回嵘, 中国科学院寒区旱区环境与工程研究所沙坡头沙漠研究试验站, 兰州, 甘肃 730000, 中国.; 李新荣, 中国科学院寒区旱区环境与工程研究所沙坡头沙漠研究试验站, 兰州, 甘肃 730000, 中国.; 贾荣亮, 中国科学院寒区旱区环境与工程研究所沙坡头沙漠研究试验站, 兰州, 甘肃 730000, 中国.; 赵昕, 中国科学院寒区旱区环境与工程研究所沙坡头沙漠研究试验站, 兰州, 甘肃 730000, 中国.; 刘立超, 中国科学院寒区旱区环境与工程研究所沙坡头沙漠研究试验站, 兰州, 甘肃 730000, 中国.
推荐引用方式 GB/T 7714	回嵘,李新荣,贾荣亮,等. 隐花植物对UV-B辐射响应和适应机制的研究进展[J]. 中国科学院西北生态环境资源研究院,2012,35(4):623-630.
APA	回嵘,李新荣,贾荣亮,赵昕,&刘立超.(2012).隐花植物对UV-B辐射响应和适应机制的研究进展.干旱区地理,35(4),623-630.
MLA	回嵘,et al."隐花植物对UV-B辐射响应和适应机制的研究进展".干旱区地理 35.4(2012):623-630.