Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/15324982.2011.554956 |
Morphological Adaptations to Drought and Reproductive Strategy of the Moss Syntrichia caninervis in the Gurbantunggut Desert, China | |
Zheng, Yunpu1,3; Xu, Ming1,4; Zhao, Jiancheng2; Zhang, Bingchang6; Bei, Shuqing5; Hao, Lihua2 | |
通讯作者 | Xu, Ming |
来源期刊 | ARID LAND RESEARCH AND MANAGEMENT |
ISSN | 1532-4982 |
EISSN | 1532-4990 |
出版年 | 2011 |
卷号 | 25期号:2页码:116-127 |
英文摘要 | The biological soil crusts (BSCs) in the Gurbantunggut Desert, the largest fixed and semi-fixed desert in China, feature moss-dominated BSCs, which play an indispensable role in sand fixation. Syntrichia caninervis Mitt. (S. caninervis) serves as one of the most common species in BSCs in the desert. In this study we examined the morphological structure of S. caninervis from leafy gametophyte to protonema using light and scanning electron microscopy (SEM). We also examined the relationships between the morphological structure of S. caninervis and environmental factors. We found that: (1) this moss species is commonly tufted on the sand surface, and its leaves are folded upwards and twisted around the stem under dry conditions; (2) the cells on both upper and lower leaf surfaces have C-shaped dark papillae, which may reflect sunlight to reduce the damage from high temperature; (3) the leaf costa is excurrent, forming an awn with forked teeth; and (4) the protonema cells are small and thickset with thick cell walls and the cytoplasm is highly concentrated with a small vacuole. In addition, we also found that the protonema cells always form pouches on the tip of the mother cells during the process of cell polarization. Our results suggest that S. caninervis has, through its life cycle, several morphological and structural characteristics to adapt to dry environmental conditions. These morphological features of S. caninervis may also be found in other deserts in the world due to the world-wide distribution of the species. |
英文关键词 | adaptation morphological structure protonema development reproductive strategy Syntrichia caninervis Mitt |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000289078500002 |
WOS关键词 | BIOLOGICAL SOIL CRUSTS ; SEX EXPRESSION ; LEAF REGENERATION ; WIND EROSION ; TOLERANCE ; STRESS ; INFILTRATION ; POPULATIONS ; DISTURBANCE ; BIOMASS |
WOS类目 | Environmental Sciences ; Soil Science |
WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
来源机构 | 中国科学院新疆生态与地理研究所 ; 中国科学院地理科学与资源研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/167173 |
作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China; 2.Hebei Normal Univ, Coll Life Sci, Shijiazhuang, Peoples R China; 3.Chinese Acad Sci, Grad Sch, Beijing 100101, Peoples R China; 4.Rutgers State Univ, Dept Ecol Evolut & Nat Resources, Ctr Remote Sensing & Spatial Anal, New Brunswick, NJ 08903 USA; 5.Langfang Normal Univ, Coll Life Sci, Langfang, Hebei, Peoples R China; 6.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresources Arid Land, Urumqi, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, Yunpu,Xu, Ming,Zhao, Jiancheng,et al. Morphological Adaptations to Drought and Reproductive Strategy of the Moss Syntrichia caninervis in the Gurbantunggut Desert, China[J]. 中国科学院新疆生态与地理研究所, 中国科学院地理科学与资源研究所,2011,25(2):116-127. |
APA | Zheng, Yunpu,Xu, Ming,Zhao, Jiancheng,Zhang, Bingchang,Bei, Shuqing,&Hao, Lihua.(2011).Morphological Adaptations to Drought and Reproductive Strategy of the Moss Syntrichia caninervis in the Gurbantunggut Desert, China.ARID LAND RESEARCH AND MANAGEMENT,25(2),116-127. |
MLA | Zheng, Yunpu,et al."Morphological Adaptations to Drought and Reproductive Strategy of the Moss Syntrichia caninervis in the Gurbantunggut Desert, China".ARID LAND RESEARCH AND MANAGEMENT 25.2(2011):116-127. |
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