HOME >> BIOLOGY >> NEWS
Plant sex protein identified at UC Riverside

Researchers at the University of California, Riverside have identified a protein that helps guide sperm to egg in flowering lily plants, a significant step forward in the field of plant reproduction.

Elizabeth Lord, professor of plant biology and a member of the Center for Plant Cell Biology at UC Riverside, authored the paper titled "Chemocyanin, a Small, Basic Protein from the Lily Stigma Induces Pollen Tube Chemotropism." The paper appears this week in the Proceedings of the National Academy of Sciences.

Botanists have long known that, in flowering plants, the female organs play a role in guiding sperm-laden pollen tubes to the eggs found in ovules. But until now, they did not know exactly how. Lord's team found that chemocyanin, a protein with a previously unknown function, effectively guided sperm-laden lily pollen tubes to the plant's ovules, which hold the eggs from which come seeds in the lily. The protein works specifically in lilies. Tobacco pollen tubes were not similarly guided.

The paper also shows that chemocyanin was more effective when another protein found in the stigma of the lily, SCA, was present. Chemocyanin and other proteins such as SCA may unlock the network of signals involved in plant reproduction.

"The importance of understanding how plants reproduce is enormous for the future manipulation of crop and nursery plants," said Lord. "There is a huge flower industry in California, and we know little about how seed set occurs in most flowering plants."

Lilies are good examples because they cannot produce seed with their own pollen so they must be cross-pollinated with another variety, according to Lord. And while the industry grows Easter lilies from bulbs not seed, whenever they want to produce new varieties for the flower market or for gardens they have to produce seed by crossing varieties.

"This research has relevance for all flowering plants because we do not know yet how polle
'"/>

Contact: Ricardo Duran
ricardo.duran@ucr.edu
909-787-5893
University of California - Riverside
10-Dec-2003


Page: 1 2

Related biology news :

1. Plants will not save us from greenhouse gases
2. Plant pathologists meeting in Anaheim, CA to discuss agricultural security, food safety, and more
3. Plant gene discovery could enhance plant growth, reduce fertilizer needs and phosphate pollution
4. Plant respiration not just an evolutionary leftover, study shows
5. Canadian Society of Agronomy partners with Plant Management Network
6. Plant pathologists look to forensics to aid in biosecurity
7. Plants for the future: A European vision for plant biotechnology towards 2025
8. Plant pathologists to discuss the future of organic farming
9. Plant pathologists to meet in Anaheim, CA to discuss agricultural security, food safety, and more
10. Plant-like enzyme acts as key life cycle switch in malaria parasite
11. Plant disease under the homeland security microscope

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/14/2019)... ... August 14, 2019 , ... Gateway Genomics , a leading ... inclusion in the 38th annual Inc. 500|5000 list of fastest growing private ... companies must have been founded and generating revenue by March 31, 2015. Ranking in ...
(Date:8/14/2019)... ... ... Julie Reck of Veterinary Medical Center of Fort Mill has recently begun providing ... her own geriatric Australian Shepherd, Simon, was treated in June 2019 for osteoarthritis in his ... body was weak, and he struggled to play fetch and other games with his family. ...
(Date:8/6/2019)... ... August 06, 2019 , ... A study released today in ... far-reaching implications for personalized medicine, especially when seeking treatments for children with heart ... which stem cell donors and manipulation methods might yield the best therapies for ...
Breaking Biology News(10 mins):
(Date:9/11/2019)... ... 2019 , ... An upcoming episode of Advancements with Ted ... sequencing analysis. Check your local listings for more information. , Advancements will go ... and will explore its revolutionary pathogenic DNA analysis technology, which predicts in real-time, ...
(Date:9/8/2019)... , ... September 05, 2019 , ... ... Blaine Fitzgerald, former Vice President of Finance for Shopify, has been named Chief ... and healthcare venture capitalist Joel Finlayson as strategic advisors. Additionally, Spartan has hired ...
(Date:8/29/2019)... ... August 28, 2019 , ... ... Danisco® ingredient solutions to attendees at the International Baking Industry Expo, September 8 ... challenges from optimizing production efficiency to cost and waste reduction and from maintaining ...
(Date:8/25/2019)... ... 2019 , ... Authors Gopal Nayak and Mahendra Kumar Trivedi ... “Impact of Biofield Treatment on Growth and Anatomical Characteristics of Pogostemon cablin (Benth.)" ... book garnered No. 1 status on Amazon in several categories including: Mind-Body Medicine, ...
Breaking Biology Technology:
Cached News: