The inherent potential to produce plants from microspores or immature pollen exists naturally in many plant species. Some genotypes in hexaploid wheat (Triticum aestivum L.) also exhibit the trait for androgenesis. Under most circumstances, however, an artificial manipulation, in the form of physical, physiological and/or chemical treatment, need to be employed to switch microspores from gametophytic development to a sporophytic pathway. Induced embryogenic microspores, characterized by unique morphological features, undergo organized cell divisions and differentiation that lead to a direct formation of embryoids. Embryoids `germinate' to give rise to haploid or doubled haploid plants. The switch from terminal differentiation of pollen grain formation to sporophytic development of embryoid production involves a treatment that halts gametogenesis and initiates sporogenesis showing predictable cellular and molecular events. In principle, the inductive treatments may act to release microspores from cell cycle control that ensures mature pollen formation hence overcome a developmental block to embryogenesis. Isolated microspore culture, genetic analyses, and studies of cellular and molecular mechanisms related to microspore embryogenesis have yielded useful information for both understanding androgenesis and improving the efficiency of doubled haploid production. The precise mechanisms for microspore embryogenesis, however, must await more research.
Plant Cell, Tissue and Organ Culture – Springer Journals
Published: Oct 11, 2004
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera