持久的花萼增加丹参（唇形科）的花寿命和女性健康,AoB Plants

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持久的花萼增加丹参（唇形科）的花寿命和女性健康
AoB Plants ( IF 2.6 ) Pub Date : 2022-01-26 , DOI: 10.1093/aobpla/plac004
Deng-Fei Li _{1,

2} , Yan Yu ₁ , Hao-Jin Yang ₁ , Xian-Chun Yan ₁

Affiliation

持久花萼的进化可能是一种适应，以确保某些开花植物的繁殖成功。然而，关于持久花萼在开花和种子发育过程中的功能的实验证据仍然很少。我们探讨了丹参中持久花萼的可能功能，丹参是一种具有钟状花萼的多年生草本植物。我们进行了花萼操作实验，以检查持久花萼是否会影响花蜜强盗和传粉者的访问率、个体花的寿命、坐果、结实和种子质量。我们的研究结果表明，花萼的缩短显着降低了个体花的寿命、坐果和种子质量，但不影响传粉者和花蜜强盗的访问。此外，对照花的种子组与出菇期开始花萼缩短的花（CSF花）没有显着差异，但均高于开花初期花萼缩短的花（CSB花）。由于花寿命降低，CSB 花的种子组和果实组受到授粉的限制。我们得出结论，丹参的持久花萼可能代表了维持花卉寿命和增加植物适应性的适应性策略。持久的花萼可以为花卉的生长提供保护，并为果实和种子的发育提供资源。由于花寿命降低，CSB 花的种子组和果实组受到授粉的限制。我们得出结论，丹参的持久花萼可能代表了维持花卉寿命和增加植物适应性的适应性策略。持久的花萼可以为花卉的生长提供保护，并为果实和种子的发育提供资源。由于花寿命降低，CSB 花的种子组和果实组受到授粉的限制。我们得出结论，丹参的持久花萼可能代表了维持花卉寿命和增加植物适应性的适应性策略。持久的花萼可以为花卉的生长提供保护，并为果实和种子的发育提供资源。

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Persistent calyces increase floral longevity and female fitness in Salvia miltiorrhiza (Lamiaceae)

The evolution of persistent calyces may be an adaptation to ensure reproductive success of certain flowering plants. However, experimental evidence of the functions of persistent calyces during flowering and seed development remains scarce. We explored the possible functions of persistent calyces in Salvia miltiorrhiza, a perennial herb with campanulate calyx. We conducted calyx manipulation experiments to examine whether persistent calyces affect visitation rates of nectar robbers and pollinators, individual flower longevity, fruit set, seed set and seed mass. Our findings suggested that shortening of the calyx significantly decreased individual flower longevity, fruit set and seed mass, but did not affect visitation of pollinators and nectar robbers. In addition, the seed set of control flowers and the flowers with calyx shortened at the beginning of fruiting stage (CSF flowers) did not significantly differ, but both were higher than that of the flowers with calyx shortened at the beginning of blooming stage (CSB flowers). The seed set and fruit set of CSB flowers were limited by pollination due to the reduction in floral longevity. We conclude that persistent calyces of S. miltiorrhiza may represent adaptive strategies to maintain floral longevity and increase plant fitness. Persistent calyces may provide protection for the growth of flowers and contribute resources to the development of fruits and seeds.

更新日期：2022-01-26

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