Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1139/cjb-2016-0263 |
Syntrichia norvegica shoots exhibit a complex inducible response to desiccation: separating the effects of rate of drying and water content | |
Stark, Lloyd R.1; Greenwood, Joshua L.1; Slate, Mandy L.2; Brinda, John C.3 | |
通讯作者 | Stark, Lloyd R. |
来源期刊 | BOTANY
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ISSN | 1916-2790 |
EISSN | 1916-2804 |
出版年 | 2017 |
卷号 | 95期号:5页码:481-491 |
英文摘要 | Plants in the moss genus Syntrichia are considered to have constitutive desiccation tolerance (DT), as in, able to tolerate a rapid drying event without incurring significant damage upon rehydration. However, few researchers have considered the separate effects of rate of drying and water content, and incorporated fully dehardened (to DT) plants in the experiments. Plants of Syntrichia norvegica F. Weber were cultured under conditions of suprasaturation, and adult shoots were exposed to a range of drying rates and equilibrating relative humidities (RHs), rehydrated, and assessed for chlorophyll fluorescence and regeneration potential. Adult shoots exhibited severe damage across all drying rates when equilibrated at RHs <30%. However, an inducible response to desiccation was present across all water contents as the rate of drying was extended from 0 to 4 d. The least desiccation damage occurred at longer drying times and higher water contents (8 d at 75% RH). A constitutive phenotype for DT was not strictly evident in S. norvegica. Rather, we observed an incomplete pattern of environmentally inducible DT, coupled with heavy shoot damage at lower water contents. Rate of drying and equilibrating RH clearly interact in producing the pattern and strategy of DT for this species. |
英文关键词 | constitutive ectohydry chlorophyll fluorescence regeneration suprasaturation mosses |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000400978300004 |
WOS关键词 | MOSS ATRICHUM-ANDROGYNUM ; TORTULA-RURALIS ; CHLOROPHYLL FLUORESCENCE ; DESERT MOSS ; TOLERANT MOSS ; ECOLOGICAL STRATEGY ; GRIMMIA-PULVINATA ; REHYDRATION ; BRYOPHYTES ; RECOVERY |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197949 |
作者单位 | 1.Univ Nevada, Sch Life Sci, 4505 Maryland Pkwy, Las Vegas, NV 89154 USA; 2.Univ Montana, Div Biol Sci, Missoula, MT 59812 USA; 3.Missouri Bot Garden, POB 299, St Louis, MO 63166 USA |
推荐引用方式 GB/T 7714 | Stark, Lloyd R.,Greenwood, Joshua L.,Slate, Mandy L.,et al. Syntrichia norvegica shoots exhibit a complex inducible response to desiccation: separating the effects of rate of drying and water content[J],2017,95(5):481-491. |
APA | Stark, Lloyd R.,Greenwood, Joshua L.,Slate, Mandy L.,&Brinda, John C..(2017).Syntrichia norvegica shoots exhibit a complex inducible response to desiccation: separating the effects of rate of drying and water content.BOTANY,95(5),481-491. |
MLA | Stark, Lloyd R.,et al."Syntrichia norvegica shoots exhibit a complex inducible response to desiccation: separating the effects of rate of drying and water content".BOTANY 95.5(2017):481-491. |
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