As the largest genus of Halymeniaceae, Grateloupia has been widely reported. Here, we observed the life history and early development of Grateloupia constricata Li et Ding and investigated the effects of temperature, irradiance, and photoperiod on the discoid crust and sporeling development of G. constricata under laboratory conditions. We observed that the type of carpospore development was “mediate discal type”. The life history included homotypic gametophyte (haploid), carposporophyte (diploid), and tetrasporophyte (diploid), with typical isomorphic alternation of generations. The results of double factorial analysis showed that both single factorial effects and interaction among temperature, photoperiod, and irradiance were obviously significant on the discoid crust and sporeling development. Furthermore, we found that the optimum combination of condition for the early growth and development of G. constricata was temperature 20°C, irradiance 80 µmol photons/(m²·s) and photoperiod 16L:8D. This study provides the theoretical basis and technical support for the conservation of the Grateloupia germplasm, artificial breeding, large-scale cultivation and sustainable development.

作为葫芦科的最大属，广泛报道了齿形科。在这里，我们观察了孔雀草的生活史和早期发育，并研究了温度，辐照度和光周期对孔雀菌盘状结壳和孢子形成的影响。在实验室条件下。我们观察到，碳孢子发育的类型是“中盘型”。生命史包括同型配子体（单倍体），碳孢子体（二倍体）和四孢子体（二倍体），具有典型的同构世代交替。双因子分析结果表明，单因子效应以及温度，光周期和辐照度之间的相互作用对盘状结壳和孢子形成均具有显着影响。此外，我们发现，孔雀菌早期生长发育的最佳条件组合是温度20°C，辐照度80 µmol光子/（m ² ·s）和光周期16L：8D。这项研究为养护森林提供了理论基础和技术支持。牛膝种质，人工育种，大规模种植和可持续发展。