Factors affecting quantity of pollen dispersal of spray cut chrysanthemum (Chrysanthemum morifolium).
Factors affecting quantity of pollen dispersal of spray cut chrysanthemum (Chrysanthemum morifolium).
复制标题
影响喷切菊花粉散布量的因素
DOI：
10.1186/1471-2229-14-5
复制
发表时间：
2014-01-06
影响因子：
5.3
通讯作者：
Teng NJ
中科院分区：
文献类型：
--
作者：
Wang XG;Wang HB;Chen FD;Jiang JF;Fang WM;Liao Y;Teng NJ
喷切菊花是一种重要的花卉，具有很高的观赏价值，在世界上广受欢迎。然而，大多数喷切菊花在开花期花粉散粉量过大是一个不利因素，会显著降低其观赏价值，并迅速缩短瓶插寿命。更严重的是，空气中过多的花粉颗粒通常对人有害，特别是对花粉过敏的人。因此，本研究以Qx-097、Noa、Qx-115和Kingdom四个品种为试材，对影响喷切菊花粉散粉量的因素进行了研究，以期为今后的喷切菊育种提供有价值的资料。结果花粉量高的品种Qx-097每花药花粉819粒，每花序花盘196.4朵，每花序花粉80万粒以上。低散粉量的‘Noa’的相应数据分别为406、175.4和350，000以上;无散粉量的‘Qx-115’的相应数据分别为219、144.2和近160，000。不散粉的翠鸟每花序有202.8朵花盘，花药无花粉粒。此外，‘Qx-097’花药破裂程度很高，几乎使花粉粒完全从花药中散开。'Noa'有中度的花药开裂，花粉粒在花药中不完全分散。而‘Qx-115’和‘Kingfisher’的花药完全不开裂。Qx-097的小孢子发生和花粉发育正常，而Noa的小孢子或花粉大量退化，Qx-115的大部分小孢子或花粉败育，Kingdom的小孢子或花粉全部退化。小孢子发生和花粉发育过程中的异常显著影响花药的花粉量。花粉散布能力与花药开裂程度密切相关。小孢子或花粉的完全退化或花药完全开裂都可能导致花粉传播的完全失败。
BackgroundSpray cut chrysanthemum is a vital flower with high ornamental value and popularity in the world. However, the excessive quantity of pollen dispersal of most spray cut chrysanthemum is an adverse factor during its flowering stage, and can significantly reduce its ornamental value and quickly shorten its vase life. More seriously, excessive pollen grains in the air are usually harmful to people, especially for those with pollen allergies. Therefore, in order to obtain some valuable information for developing spray cut chrysanthemum with less-dispersed or non-dispersed pollen in the future breeding programs, we here investigated the factors affecting quantity of pollen dispersal of spray cut chrysanthemum with four cultivars, i.e. ‘Qx-097’, ‘Noa’, ‘Qx-115’, and ‘Kingfisher’, that have different quantity of pollen dispersal.Results‘Qx-097’ with high quantity of pollen dispersal has 819 pollen grains per anther, 196.4 disk florets per inflorescence and over 800,000 pollen grains per inflorescence. The corresponding data for ‘Noa’ with low quantity of pollen dispersal are 406, 175.4 and over 350,000, respectively; and 219, 144.2 and nearly 160,000 for ‘Qx-115’ without pollen dispersal, respectively. ‘Kingfisher’ without pollen dispersal has 202.8 disk florets per inflorescence, but its anther has no pollen grains. In addition, ‘Qx-097’ has a very high degree of anther cracking that nearly causes a complete dispersal of pollen grains from its anthers. ‘Noa’ has a moderate degree of anther cracking, and pollen grains in its anthers are not completely dispersed. However, the anthers of ‘Qx-115’ and ‘Kingfisher’ do not crack at all. Furthermore, microsporogenesis and pollen development are normal in ‘Qx-097’, whereas many microspores or pollen degenerate in ‘Noa’, most of them abort in ‘Qx-115’, and all of them degrade in ‘Kingfisher’.ConclusionsThese results suggest that quantity of pollen dispersal in spray cut chrysanthemum are mainly determined by pollen quantity per anther, and capacity of pollen dispersal. Abnormality during microsporogenesis and pollen development significantly affects pollen quantity per anther. Capacity of pollen dispersal is closely related to the degree of anther dehiscence. The entire degeneration of microspore or pollen, or the complete failure of anther dehiscence can cause the complete failure of pollen dispersal.
登录
查看更多内容
DOI：
10.1111/j.1469-8137.2012.04329.x
发表时间：
2012-12
期刊：
The New phytologist
影响因子：
--
作者：
Nelson MR;Band LR;Dyson RJ;Lessinnes T;Wells DM;Yang C;Everitt NM;Jensen OE;Wilson ZA
通讯作者：
Wilson ZA
影响因子：
4.3
作者：
Castro, Antonio J.;Clement, Christophe
通讯作者：
Clement, Christophe
影响因子：
9.4
作者：
KEIJZER, CJ
通讯作者：
KEIJZER, CJ
影响因子：
5.9
作者：
Chan, RYC;Oppenheimer, JJ
通讯作者：
Oppenheimer, JJ
影响因子：
12.4
作者：
de Jong, NW;Vermeulen, AM;de Groot, H
通讯作者：
de Groot, H