CIDE-CSIC, Carretera CV-315, Km 10.7, Montcada, Valencia, Spain; http://www.uv.es/jgpausas/.
US Geological Survey, Western Ecological Research Center, Sequoia-Kings Canyon Field Station, Three Rivers, CA 93271, USA.
Trends Plant Sci. 2017 Dec;22(12):1008-1015. doi: 10.1016/j.tplants.2017.08.010. Epub 2017 Sep 17.
Many plants resprout from basal buds after disturbance, and this is common in shrublands subjected to high-intensity fires. However, resprouting after fire from epicormic (stem) buds is globally far less common. Unlike basal resprouting, post-fire epicormic resprouting is a key plant adaptation for retention of the arborescent skeleton after fire, allowing rapid recovery of the forest or woodland and leading to greater ecosystem resilience under recurrent high-intensity fires. Here we review the biogeography of epicormic resprouting, the mechanisms of protection, the fire regimes where it occurs, and the evolutionary drivers that shaped this trait. We propose that epicormic resprouting is adaptive in ecosystems with high fire frequency and relatively high productivity, at moderate-high fire intensities.
许多植物在受到干扰后会从基芽重新生长，这在遭受高强度火灾的灌木林中很常见。然而，在火灾后从皮芽（茎）芽重新生长的情况在全球范围内要少见得多。与基芽重新生长不同，火灾后皮芽重新生长是植物在火灾后保留树木骨架的关键适应机制，它可以使森林或林地迅速恢复，并且在反复发生高强度火灾的情况下提高生态系统的恢复能力。在这里，我们回顾了皮芽重新生长的生物地理学、保护机制、发生火灾的火灾制度以及塑造这种特征的进化驱动力。我们认为，在火频较高、生产力相对较高、火灾强度中等偏高的生态系统中，皮芽重新生长是适应性的。
