Leaf area and water content changes after permanent and temporary storage.
Leaf area and water content changes after permanent and temporary storage.
复制标题
DOI：
10.1371/journal.pone.0042604
复制
发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Tarasoff CS
中科院分区：
文献类型：
--
作者：
Juneau KJ;Tarasoff CS
必须对叶片形态进行精确测量，以建立生态系统生产力和气候变化预测模型。一旦叶子从植物上被移除，它们开始失去水分并降解。如果收获后无法立即测量标本，则以减少形态变化的方式储存叶子非常重要。如果使用保存的标本，则需要计算与新鲜测量结果密切匹配的估计值。本研究探讨了储存处理后叶面积的变化，并开发了可用于更准确地估计初始叶面积的模型。新鲜叶面积测量从十种植物，然后存储在两个常见的存储处理之一。储存后，叶面积进行了重新测量，并在物种和生长形式之间进行了比较。叶面积的下降幅度在永久贮藏处理后最大，暂时贮藏处理后最小。压榨叶的皱缩率在18%以上，而冷藏叶的皱缩率在4%以下。各处理中木本双子叶植物生长型萎缩最小。收缩与初始含水量和解剖指数呈正相关，解剖指数是衡量叶片形状和复杂性的一个指标。
Accurate measurements of leaf morphology must be taken to develop models of ecosystem productivity and climate change projections. Once leaves are removed from a plant they begin to lose water and degrade. If specimens cannot be measured immediately after harvest, it is important to store the leaves in a manner that reduces morphological changes. If preserved specimens are used, estimates that closely match fresh measurements need to be calculated. This study examined the change in leaf area after storage treatments and developed models that can be used to more accurately estimate initial leaf area. Fresh leaf area was measured from ten plant species then stored in one of two common storage treatments. After storage, leaf area was re-measured and comparisons were made between species and growth forms. Leaf area decreased the most after permanent storage treatments and the least after temporary storage. Pressed leaves shrunk over 18% while cold storage leaves shrunk under 4%. The woody dicot growth form shrunk the least in all treatments. Shrinkage was positively correlated with initial water content and dissection index, a measure of leaf shape and complexity.
登录
查看更多内容
影响因子：
3
作者：
MCLELLAN, T
通讯作者：
MCLELLAN, T
影响因子：
3
作者：
Miller-Rushing, Abraham J.;Primack, Richard B.;Mukunda, Sharda
通讯作者：
Mukunda, Sharda
影响因子：
5.2
作者：
Garnier, E;Shipley, B;Laurent, G
通讯作者：
Laurent, G
影响因子：
7.4
作者：
Cochard, H;Froux, F;Coutand, C
通讯作者：
Coutand, C
影响因子：
7.4
作者：
Brodribb, TJ;Holbrook, NM
通讯作者：
Holbrook, NM