Effects of storage temperature on the physiological characteristics and vegetative propagation of desiccation-tolerant mosses
文献类型：期刊论文
| 作者 | Zhao, Yunge; Guo, Yuewei; Zhao, YG (reprint author), Northwest A & F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dry Land Farming Loess, Yangling 712100, Shaanxi, Peoples R China. |
| 刊名 | BIOGEOSCIENCES
 |
| 出版日期 | 2018 |
| 卷号 | 15期号:3页码:797-808 |
| ISSN号 | 1726-4170 |
| DOI | 10.5194/bg-15-797-2018 |
| 文献子类 | Article |
| 英文摘要 | Mosses, as major components of later successional biological soil crusts (biocrusts), play many critical roles in arid and semiarid ecosystems. Recently, some species of desiccation-tolerant mosses have been artificially cultured with the aim of accelerating the recovery of biocrusts. Revealing the factors that influence the vegetative propagation of mosses, which is an important reproductive mode of mosses in dry habitats, will benefit the restoration of moss crusts. In this study, three air-dried desiccation-tolerant mosses (Barbula unguiculata, Didymodon vinealis, and Didymodon tectorum) were hermetically sealed and stored at five temperature levels (0, 4, 17, 25, and 30 degrees C) for 40 days. Then, the vegetative propagation and physiological characteristics of the three mosses were investigated to determine the influence of storage temperature on the vegetative propagation of desiccation-tolerant mosses and the mechanism. The results showed that the vegetative propagation of the three mosses varied with temperature. The most variation in vegetative propagation among storage temperatures was observed in D. tectorum, followed by the variation observed in B. unguiculata. In contrast, no significant difference in propagation among temperatures was found in D. vinealis. The regenerative capacity of the three mosses increased with increasing temperature from 0 to 17 degrees C, accompanied by a decrease in malondialdehyde (MDA) content, and decreased thereafter. As the temperature increased, the chlorophyll and soluble protein contents increased in B. unguiculata but decreased in D. vinealis and D. tectorum. As to storage, the MDA and soluble sugar contents increased after storage. The MDA content of the three mosses increased at each of the investigated temperatures by more than 50% from the initial values, and the soluble sugar content became higher than before in the three mosses. The integrity of cells and cell membranes is likely the most important factor influencing the vegetative propagation of desiccation-tolerant mosses. A 40-day storage period caused cell injury. Our results suggest that storage temperature can enhance or suppress such injury and change the regenerative capacity of the three mosses. The data indicate that the suitable storage temperature is 4 degrees C for B. unguiculata and 17 degrees C for both D. vinealis and D. tectorum. |
| 学科主题 | Ecology ; Geosciences, Multidisciplinary |
| 出版地 | BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY |
| 语种 | 英语 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| WOS记录号 | WOS:000424635300003 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/7843]  |
| 专题 | 水保所科研产出--SCI_2018--SCI |
| 通讯作者 | Zhao, YG (reprint author), Northwest A & F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dry Land Farming Loess, Yangling 712100, Shaanxi, Peoples R China. |
| 作者单位 | Northwest A & F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dry Land Farming Loess, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yunge,Guo, Yuewei,Zhao, YG . Effects of storage temperature on the physiological characteristics and vegetative propagation of desiccation-tolerant mosses[J]. BIOGEOSCIENCES,2018,15(3):797-808. |
| APA | Zhao, Yunge,Guo, Yuewei,&Zhao, YG .(2018).Effects of storage temperature on the physiological characteristics and vegetative propagation of desiccation-tolerant mosses.BIOGEOSCIENCES,15(3),797-808. |
| MLA | Zhao, Yunge,et al."Effects of storage temperature on the physiological characteristics and vegetative propagation of desiccation-tolerant mosses".BIOGEOSCIENCES 15.3(2018):797-808. |
入库方式： OAI收割
来源：水土保持研究所
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