Vescio Rosa, Abenavoli Maria Rosa, Araniti Fabrizio, Musarella Carmelo Maria, Sofo Adriano, Laface Valentina Lucia Astrid, Spampinato Giovanni, Sorgonà Agostino
Department of Agricultural Sciences, "Mediterranea" University of Reggio Calabria, Feo di Vito, 89124 Reggio Calabria, Italy.
Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, Università Degli Studi di Milano, Via G. Celoria 2, 20133 Milan, Italy.
Plants (Basel). 2021 Mar 3;10(3):474. doi: 10.3390/plants10030474.
(Ard.) is an endemic and rare plant species recently rediscovered as very few individuals at two different Southern Italy sites. The study of within-plant variation is fundamental to understand the plant adaptation to the local conditions, especially in rare species, and consequently to preserve plant biodiversity. Here, we reported the variation of the morpho-ecophysiological and metabolic traits between the sessile and petiolate leaf of plants at two different sites for understanding the adaptation strategies for surviving in these habitats. The individuals exhibited different net photosynthetic rate, maximum quantum yield, light intensity for the saturation of the photosynthetic machinery, stomatal conductance, transpiration rate, leaf area, fractal dimension, and some volatile organic compounds (VOCs) between the different leaf types. This within-plant morpho-physiological and metabolic variation was dependent on the site. These results provide empirical evidence of sharply within-plant variation of the morpho-physiological traits and VOCs profiles in , explaining the adaptation to the local conditions.
（Ard.）是一种地方性稀有植物物种，最近在意大利南部的两个不同地点被重新发现，个体数量极少。研究植物内部变异对于理解植物对当地环境的适应性至关重要，特别是对于稀有物种，从而有助于保护植物生物多样性。在此，我们报告了两个不同地点的植物无柄叶和有柄叶之间形态生态生理和代谢特征的变异，以了解在这些栖息地生存的适应策略。不同叶型之间的个体在净光合速率、最大量子产率、光合机构饱和时的光照强度、气孔导度、蒸腾速率、叶面积、分形维数以及一些挥发性有机化合物（VOCs）方面表现出差异。这种植物内部的形态生理和代谢变异取决于地点。这些结果为（Ard.）形态生理特征和VOCs谱在植物内部的急剧变异提供了实证依据，解释了其对当地环境的适应性。
