Difference between emergent aquatic and terrestrial monocotyledonous herbs in relation to the coordination of leaf stomata with vein traits.
Difference between emergent aquatic and terrestrial monocotyledonous herbs in relation to the coordination of leaf stomata with vein traits.
复制标题
水生与陆生单子叶草本植物叶片气孔与叶脉性状协调的差异
DOI：
10.1093/aobpla/plaa047
复制
发表时间：
2020-10
期刊：
影响因子：
2.9
通讯作者：
Zhao P
中科院分区：
文献类型：
--
作者：
Zhao W;Fu P;Liu G;Zhao P
摘要挺水植物多生长于沃茨，根在底层基质中，但其叶片与陆生植物的叶片相似，从水面露出，暴露于空气中。以往的研究发现，陆生植物叶片水分供应和需求之间的协调，然而，这种协调是否存在于挺水植物仍然未知。本研究对14种挺水水生和13种陆生单子叶草本植物（EMH和TMH）的叶脉和气孔特征进行了分析，其中5种EMH和8种TMH属于禾本科。结果表明，EMH处理的平均叶面积、叶片厚度、气孔密度、平均脉长气孔数和主脉直径显著高于TMH处理，而平均脉长和总脉长显著低于TMH处理。两组气孔长度、小VLA和小静脉直径差异不显著。气孔密度和总VLA之间呈正相关的EMH，TMH，以及8禾本科TMH物种，但这种相关性变得不显着时，两组数据汇总。结果表明，挺水植物和陆生植物供水的差异改变了它们的叶脉和气孔特征的协调性。
Abstract Emergent aquatic plants mostly occur in shallow waters and root in bottom substrates, but their leaves emerge from the water surface and are thus exposed to air, similar to the leaves of terrestrial plants. Previous studies have found coordination between leaf water supply and demand in terrestrial plants; however, whether such a coordination exists in emergent aquatic plants remains unknown. In this study, we analysed leaf veins and stomatal characteristics of 14 emergent aquatic and 13 terrestrial monocotyledonous herb species (EMH and TMH), with 5 EMH and 8 TMH belonging to Poaceae. We found that EMH had significantly higher mean leaf area, leaf thickness, stomatal density, stomatal number per vein length and major vein diameter, but lower mean major vein length per area (VLA) and total VLA than TMH. There was no significant difference in stomatal length, minor VLA and minor vein diameter between the two groups. Stomatal density and total VLA were positively correlated among the EMH, TMH, as well as the 8 Poaceae TMH species, but this correlation became non-significant when data from both the groups were pooled. Our results showed that the differences in water supply between emergent aquatic and terrestrial plants modify the coordination of their leaf veins and stomatal traits.
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DOI：
10.1098/rspb.2008.1919
发表时间：
2009-05-22
影响因子：
4.7
作者：
Boyce, C. Kevin;Brodribb, Tim J.;Zwieniecki, Maciej A.
通讯作者：
Zwieniecki, Maciej A.
影响因子：
1.1
作者：
Hovenden, Mark J.;Vander Schoor, Jacqueline K.;Osanai, Yui
通讯作者：
Osanai, Yui
DOI：
10.1073/pnas.0904209106
发表时间：
2009-06-23
影响因子：
11.1
作者：
Franks, Peter J.;Beerling, David J.
通讯作者：
Beerling, David J.
影响因子：
6.4
作者：
Fanourakis, Dimitrios;Carvalho, Susana M. P.;Heuvelink, Ep
通讯作者：
Heuvelink, Ep
影响因子：
5.7
作者：
Haworth, Matthew;Scutt, Charles P.;Centritto, Mauro
通讯作者：
Centritto, Mauro