Navigation Links
How 'mother of thousands' makes plantlets
Date:10/2/2007

New research shows how the houseplant "mother of thousands" (Kalanchoe diagremontiana) makes the tiny plantlets that drop from the edges of its leaves. Having lost the ability to make viable seeds, the plant has shifted some of the processes that make seeds to the leaves, said Neelima Sinha, professor of plant biology at UC Davis.

Many plants reproduce by throwing out long shoots or runners that can grow into new plants. But mother of thousands goes further: the plantlets are complete miniature plants that become disconnected from the mother plant's circulatory system and drop off, allowing them to spread rapidly and effectively. The houseplant has lost the ability to make viable seeds and only reproduces through plantlets.

Helena Garcs, a graduate student in Sinha's laboratory, Sinha and colleagues looked at two genes, STM and LEC, in mother of thousands and close relatives, some of which make seeds instead of plantlets. STM controls shoot growth, while LEC is involved in making seeds.

Expression of STM in leaves was essential for making plantlets. In most plants LEC is expressed in seeds, but mother of thousands' version of the gene, LEC1, was expressed in leaves as well. When the researchers transferred the LEC1 variant into other plants, they were unable to make viable seeds.

Mother of thousands appears to have lost the ability to reproduce sexually and make seeds, but transferred at least part of the embryo-making process to the leaves to make plantlets, Sinha said. The findings could be useful in manipulating plant reproduction, she said.


'/>"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Source:Eurekalert

Page: 1

Related biology news :

1. Adding Radiation Therapy To Chemotherapy Improves Survival In Patients With High-risk Breast Cancer
2. New Treatment Rivals Chemotherapy For Lymphoma, Study Finds
3. Bevacizumab Combined With Chemotherapy Improves Progression-Free Survival for Patients With Advanced Breast Cancer
4. Report that delayed motherhood decreases life expectancy of mouse offspring
5. Tendency to hair loss inherited from the mother
6. Mother birds increase progesterone to hatch females
7. Antiretroviral Therapy May Prevent HIV Transmission From Breastfeeding Mothers To Infants
8. USC researchers determine mechanism of action of chemotherapy drug
9. Studies clarify risk factors for mother-to-child transmission of hepatitis C virus
10. Mining biotechs data mother lode
11. Gene expression profile helps predict chemotherapy response in ovarian cancer patients
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/6/2017)... , Jan. 5, 2017  Delta ID Inc., a ... scanning technology for automotive at CES® 2017. Delta ID ... ) to demonstrate the use of iris scanning as ... authenticate the driver in a car, and as a ... driving experience. Delta ID and Gentex will ...
(Date:1/3/2017)... VEGAS , Jan. 3, 2017 Onitor, ... the introduction of Onitor Track, an innovative biometric data-driven ... men, showcasing this month at the 2017 Consumer Electronics ... In the U.S., the World Health ... more than two-thirds of adults who are overweight or ...
(Date:12/20/2016)... Dec. 20, 2016 The rising popularity ... and leasing is stoking significant interest in keyless ... technology, Bluetooth low energy (BLE), biometrics and near-field ... next wave of wireless technologies in the automotive ... to advanced access systems opens the market to ...
Breaking Biology News(10 mins):
(Date:1/17/2017)... ... January 17, 2017 , ... ... research, recently announced a collaboration with the Heidelberg University Hospital and the German ... library preparation, following the company’s successful launch of its CATS (Capture and ...
(Date:1/17/2017)... -- On January 10 at the Medtech Showcase held in ... in San Francisco , ProclaRx CEO, ... pharmaceutical leaders and public and private investors about the ... destroy biofilms.  Biofilms are a physical ... body,s immune system from eradicating chronic infections. Infections with biofilms ...
(Date:1/16/2017)... , Jan. 16, 2017   Valentin A. Pavlov, ... MD , president and CEO of The Feinstein ... an analysis of how the nervous system regulates the ... develop bioelectronic medicine devices to treat disease ... Nature Neuroscience . The paper examines various ...
(Date:1/16/2017)...  Eurofins Genomics today announced the expansion of its ... receive their primers in a shorter turnaround time, without ... with other providers. Express oligos are available for anyone ... no additional fee. Researchers use the oligos ... sequencing, genotyping, site-directed mutagenesis, and cloning. Often, they are ...
Breaking Biology Technology: