Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1093/jxb/eru022 |
Leaf anatomical traits which accommodate the facultative engagement of crassulacean acid metabolism in tropical trees of the genus Clusia | |
Zambrano, V. Andrea Barrera1; Lawson, Tracy2; Olmos, Enrique3; Fernandez-Garcia, Nieves3; Borland, Anne M.1,4 | |
通讯作者 | Borland, Anne M. |
来源期刊 | JOURNAL OF EXPERIMENTAL BOTANY
![]() |
ISSN | 0022-0957 |
EISSN | 1460-2431 |
出版年 | 2014 |
卷号 | 65期号:13页码:3513-3523 |
英文摘要 | Succulence and leaf thickness are important anatomical traits in CAM plants, resulting from the presence of large vacuoles to store organic acids accumulated overnight. A higher degree of succulence can result in a reduction in intercellular air space which constrains internal conductance to CO2. Thus, succulence presents a trade-off between the optimal anatomy for CAM and the internal structure ideal for direct C-3 photosynthesis. This study examined how plasticity for the reversible engagement of CAM in the genus Clusia could be accommodated by leaf anatomical traits that could facilitate high nocturnal PEPC activity without compromising the direct day-time uptake of CO2 via Rubisco. Nine species of Clusia ranging from constitutive C-3 through C-3/CAM intermediates to constitutive CAM were compared in terms of leaf gas exchange, succulence, specific leaf area, and a range of leaf anatomical traits (% intercellular air space (IAS), length of mesophyll surface exposed to IAS per unit area, cell size, stomatal density/size). Relative abundances of PEPC and Rubisco proteins in different leaf tissues of a C-3 and a CAM-performing species of Clusia were determined using immunogold labelling. The results indicate that the relatively well-aerated spongy mesophyll of Clusia helps to optimize direct C-3-mediated CO2 fixation, whilst enlarged palisade cells accommodate the potential for C-4 carboxylation and nocturnal storage of organic acids. The findings provide insight on the optimal leaf anatomy that could accommodate the bioengineering of inducible CAM into C-3 crops as a means of improving water use efficiency without incurring detrimental consequences for direct C-3-mediated photosynthesis. |
英文关键词 | CAM Clusia leaf anatomy PEPC photosynthesis stomata |
类型 | Article |
语种 | 英语 |
国家 | England ; Spain ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000339953400017 |
WOS关键词 | STOMATAL APERTURE ; DESERT SUCCULENTS ; DELTA-C-13 VALUES ; CAM EXPRESSION ; CELL-SIZE ; PHOTOSYNTHESIS ; PLANTS ; CO2 ; ECOPHYSIOLOGY ; CONDUCTANCE |
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/2XILL650/183287 |
作者单位 | 1.Newcastle Univ, Sch Biol, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England; 2.Univ Essex, Sch Biol Sci, Colchester CO4 3SQ, Essex, England; 3.CEBAS CSIC Campus Univ Espinardo, Dept Abiot Stress & Plant Pathol, Murcia 30100, Spain; 4.Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA |
推荐引用方式 GB/T 7714 | Zambrano, V. Andrea Barrera,Lawson, Tracy,Olmos, Enrique,et al. Leaf anatomical traits which accommodate the facultative engagement of crassulacean acid metabolism in tropical trees of the genus Clusia[J],2014,65(13):3513-3523. |
APA | Zambrano, V. Andrea Barrera,Lawson, Tracy,Olmos, Enrique,Fernandez-Garcia, Nieves,&Borland, Anne M..(2014).Leaf anatomical traits which accommodate the facultative engagement of crassulacean acid metabolism in tropical trees of the genus Clusia.JOURNAL OF EXPERIMENTAL BOTANY,65(13),3513-3523. |
MLA | Zambrano, V. Andrea Barrera,et al."Leaf anatomical traits which accommodate the facultative engagement of crassulacean acid metabolism in tropical trees of the genus Clusia".JOURNAL OF EXPERIMENTAL BOTANY 65.13(2014):3513-3523. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。