文献类型： 外文期刊
作者： Gan, Yangying 1 ; Su, Zhuhua 1 ; Xiao, Guangjiang 1 ; Wang, Huafeng 3 ; Zhang, Jinge 1 ; Hong, Sijie 1 ; Yang, Ziping 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Agr Econ & Rural Dev, Guangzhou, Guangdong, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Urban Agr South China, Guangzhou, Guangdong, Peoples R China
3.Hainan Univ, Sch Life & Pharmaceut Sci, Minist Educ, Key Lab Trop Biol Resources, Haikou 570228, Hainan, Peoples R China
关键词： Octad pollen; Annonaceae; Microspore; Pollen mother cell
期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）
ISSN： 1560-8530
年卷期： 2019 年 22 卷 6 期
页码：
收录情况： SCI
摘要： Octad pollen can be an important taxonomic character. Knowledge about the development of octad pollen, though, is very limited, and few reports have some contradictions. Disepalum is known for having octad pollen, but until now there is no report on its octad pollen development. In present study, the octad pollen development of D. plagioneurum (Diels) D.M. Johnson was observed. The results show the anthers of D. plagioneurum are septate, having 10-15 sporangial chambers, each containing one sporogenous cell, which then develops into a pair of connected pollen mother cells partitioned by a cell plate. The paired pollen mother cells undergo meiosis synchronously, generating two tetragonal tetrads that remain connected to each other but partitioned by a cell plate, thus forming a single octad in each sporangial chamber Each tetrad of the octad is coated by pollen mother cell wall, which is digested quickly, but incompletely. The incomplete digestion makes each microspore rotate 180 degrees, which pulls the distal side towards the center of the tetrad to reestablish as the proximal side, while the former proximal side becomes the distal side. At maturity, the pollen octad is about 200 mu m long and 100 mu m wide. The tapetum and septa among the anther locules are almost wholly digested, leaving only tapetal residue or a space among the octads. Our study confirms the rotation of microspores in octad pollen development and finds the main process of octad pollen development has no significant difference between D. plagioneurum and Cymbopetalum baillonii. (C) 2019 Friends Science Publishers
- 相关文献
作者其他论文 更多>>
-
Repetitive Sequences, Codon Usage Bias and Phylogenetic Analysis of the Plastome of Miliusa glochidioides
作者：Gan, Yangying;Liu, Xiaojing;Ping, Jingyao;Peng, Caixia
关键词：Miliusa glochidioides plastome; SSRs; Codon usage bias; Phylogenetics
-
The complete chloroplast genome of Miliusa glochidioides (Annonaceae) and phylogenetic analysis
作者：Gan, Yangying;Zhang, Qi;Ping, Jingyao
关键词：Miliusa glochidioides; chloroplast genome; phylogenetic analysis
-
A Study on the Octad Pollen Development in Disepalum plagioneurum (Annonaceae)
作者：Gan, Yangying;Su, Zhuhua;Xiao, Guangjiang;Zhang, Jinge;Hong, Sijie;Yang, Ziping;Gan, Yangying;Su, Zhuhua;Xiao, Guangjiang;Zhang, Jinge;Hong, Sijie;Yang, Ziping;Wang, Huafeng
关键词：Octad pollen; Annonaceae; Microspore; Pollen mother cell
-
The coexistence of binucleate and trinucleate pollen in Mitrephora macclurei Weerasooriya & R. M. K (Annonaceae)
作者：Gan, Yangying;Xu, Fengxia;Xu, Fengxia
关键词：pollen nuclear number; trinucleate pollen; Schurhoff-Brewbaker law; Annonaceae
-
The coexistence of binucleate and trinucleate pollen in Mitrephora macclurei Weerasooriya & R. M. K (Annonaceae)
作者：Gan, Yangying;Xu, Fengxia;Xu, Fengxia
关键词：pollen nuclear number; trinucleate pollen; Schurhoff-Brewbaker law; Annonaceae
-
Pollen morphology of selected species from Annonaceae
作者：Gan, Yangying;Liu, Yong;Xu, Fengxia;Gan, Yangying
关键词：morphology; pollen grain; tetrads; octads; Annonaceae
-
The Advances, Problems and Advices of Structural-Functional Modeling for Fruit Trees
作者：Hong, Jianjun;Gan, Yangying;Yan, Minjie
关键词：virtual plant;structural-functional model;wireless sensor network;artificial neural network
