Title |
Callose plug deposition patterns vary in pollen tubes of Arabidopsis thalianaecotypes and tomato species
|
---|---|
Published in |
BMC Plant Biology, October 2012
|
DOI | 10.1186/1471-2229-12-178 |
Pubmed ID | |
Authors |
Peng Qin, Dylan Ting, Andrew Shieh, Sheila McCormick |
Abstract |
The pollen grain contains the male gametophyte that extends a pollen tube that grows through female tissues in order to deliver sperm to the embryo sac for double fertilization. Growing pollen tubes form periodic callose plugs that are thought to block off the older parts of the tube and maintain the cytoplasm near the growing tip. The morphology of callose plugs and the patterns of their deposition were previously shown to vary among species, but variation within a species had not been examined. We therefore systematically examined callose plug deposition in Arabidopsis thaliana ecotypes, tested for heritability using reciprocal crosses between ecotypes that had differing deposition patterns, and investigated the relationship between callose plugs and pollen tube growth rate. We also surveyed callose plug deposition patterns in different species of tomato. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 1 | 33% |
Unknown | 2 | 67% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 2 | 67% |
Practitioners (doctors, other healthcare professionals) | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
China | 1 | 2% |
Brazil | 1 | 2% |
Unknown | 50 | 96% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 18 | 35% |
Researcher | 8 | 15% |
Student > Master | 5 | 10% |
Professor > Associate Professor | 4 | 8% |
Student > Bachelor | 4 | 8% |
Other | 5 | 10% |
Unknown | 8 | 15% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 37 | 71% |
Biochemistry, Genetics and Molecular Biology | 6 | 12% |
Environmental Science | 1 | 2% |
Sports and Recreations | 1 | 2% |
Unknown | 7 | 13% |