Frontiers in Plant Science ( IF 5.6 ) Pub Date : 2020-07-21 , DOI: 10.3389/fpls.2020.01178 Alicia V Perera-Castro 1, 2 , Melinda J Waterman 2 , Johanna D Turnbull 2 , Michael B Ashcroft 2 , Ella McKinley 3 , Jennifer R Watling 3, 4 , Jessica Bramley-Alves 2 , Angelica Casanova-Katny 5 , Gustavo Zuniga 6 , Jaume Flexas 1 , Sharon A Robinson 2, 7
The terrestrial flora of Antarctica’s frozen continent is restricted to sparse ice-free areas and dominated by lichens and bryophytes. These plants frequently battle sub-zero temperatures, extreme winds and reduced water availability; all influencing their ability to survive and grow. Antarctic mosses, however, can have canopy temperatures well above air temperature. At midday, canopy temperatures can exceed 15°C, depending on moss turf water content. In this study, the optimum temperature of photosynthesis was determined for six Antarctic moss species:
中文翻译:
阳光下很热:尽管气候寒冷,南极的苔藓仍具有光合作用的最佳高温。
南极洲冰冻大陆的陆地植物仅限于稀疏的无冰地区,并以地衣和苔藓植物为主。这些工厂经常与零度以下的温度,极端的风和减少的水利用量作斗争。所有这些都会影响他们的生存和成长能力。但是,南极苔藓的冠层温度可能会大大高于空气温度。在午间,根据苔藓草皮含水量的不同,冠层温度可能会超过15°C。在这项研究中,确定了六个南极苔藓物种的光合作用的最佳温度: