热带干燥森林附生凤梨科凤梨科植物凤梨夜间可滴定酸度的积累

IF 1.3 4区生物学 Q3 PLANT SCIENCES

Phyton-international Journal of Experimental Botany Pub Date : 2017-12-21 DOI:10.32604/PHYTON.2017.86.278

E. A. Díaz-Álvarez, AP Rojas-Cortés, E. Barrera

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引用次数: 0

摘要

以附生凤梨(Tillandsia makoyana)为研究对象，探讨了水、温度、光照等环境因子对其天冬氨酸代谢表达的影响。特别地，测量了夜间可滴定酸度积累和最高叶温对浇水和入射光的响应。浇水和阳光直射的植株夜间可滴定酸度积累量最高(25.52±0.34 H+/m2)，而未浇水和遮荫的植株可滴定酸度减少59%。我们的研究结果表明，在这个环境因素波动很大的生态系统中，马科亚蓝是一种本地物种，它的光合活性对水分有效性的快速反应。

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Nocturnal accumulation of titratable acidity in Tillandsia makoyana (Bromeliaceae), epiphytic bromeliad of the tropical dry forest

The epiphytic bromeliad Tillandsia makoyana was studiedto assess the contribution of the environmental factors, water,temperature, and light, to the expression of the Crassulacean acid metabolism.In particular, nocturnal titratable acidity accumulation andmaximum leaf temperature were measured in response to wateringand incident light. Plants that were watered and exposed to directsunlight had the highest nocturnal accumulation of titratable acidity(25.52 ± 0.34 H+/m2), while those without irrigation and shadedshowed a 59% reduction in their titratable acidity. Our results illustrateda rapid response of the photosynthetic activity to water availabilityin Tillandsia makoyana, a native species from an ecosystemwhere this environmental factor fluctuates greatly.

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来源期刊

Phyton-international Journal of Experimental Botany 生物-植物科学

CiteScore

1.90

自引率

11.80%

发文量

审稿时长

12 months

期刊介绍： Phyton-International Journal of Experimental Botany is an international journal that publishes on the broadest aspects of plant biology and ecology. The journal welcomes the original and exciting submissions that provide new and fundamental insights into the origins, development, and function of plants from the molecular to the whole organism and its interactions within the biotic and abiotic environment. Phyton-International Journal of Experimental Botany publishes outstanding research in the plant and ecology sciences, especially in the areas of plant physiology and biochemistry, plant metabolism, plant ecology and evolution, as well as those making use of synthetic, modeling, bioinformatics, and -omics tools. Manuscripts submitted to this journal must not be under simultaneous consideration or have been published elsewhere, either in part or in whole.