Navigation Links
Plants that move: How a New Zealand species disperses seeds in a high alpine, wet environment
Date:9/30/2010

High in an alpine meadow, Gesine Pufal, from the University of Wellington, New Zealand, crouched low to the ground and splashed some water from her water bottle on a low green plant cushion, then sat back waiting to see if something would move. Sound crazy? Many hikers passing by her may have thought so, but Pufal was trying to find potential plant species that possess a type of plant movement called hygrochasy.

Although the ability to move is typically thought to be a characteristic unique to the animal kingdom, plants are also capable of movement, from the sudden quick snap of a Venus flytrap to the more subtle creeping of the growing tips of a morning glory vine.

Pufal and her colleagues were interested in another type of plant movementone used for dispersing seeds, called hygrochasy. While most plants rely on outside sources such as animals or wind to move their seeds to new locations, some plants have specialized, self-sufficient mechanisms. Hygrochasy combines the movement of a plant organ with dispersal of seedsin response to moisture, such as rain drops, water fills specific cells or cell walls, changing their size, which in turn pops open a capsule expelling the seeds found within.

"Hygrochasy is a dehiscence mechanism that was previously thought to be very specific to plants from very dry environments with only sporadic rainfall," Pufal notes. "When the closed fruits of some desert plants are wetted by rainfall, they open and the seeds get dispersed, thus taking immediate advantage of the recently moistened soils and ensuring successful seed germination."

Although hygrochasy has been found primarily in plants in xeric, or dry, environments, Pufal's interest was piqued by reports that hygrochastic capsules had been found in plants from wetter environments, including some alpine cushion-forming species of Veronica in New Zealand.

Pufal's search for hygrochasy in New Zealand's high alps was successf
'/>"/>

Contact: Richard Hund
rhund@botany.org
314-577-9557
American Journal of Botany
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. New study shows over one-fifth of the worlds plants are under threat of extinction
2. New VARI findings next step to growing drought-resistant plants
3. Rotating high-pressure sodium lamps provide flowering plants for spring markets
4. Ecologists find new clues on climate change in 150-year-old pressed plants
5. Learning to live on land: How some early plants overcame an evolutionary hurdle
6. Researchers discover novel mechanism protecting plants against freezing
7. Frozen flies may yield secrets for human organ transplants
8. Climate change affects geographical range of plants
9. VIB and UGent researchers identify key mechanisms of cell division in plants
10. Scientists find new evidence of genetically modified plants in the wild
11. Scientists find the first evidence of genetically modified plants in the wild
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2014)... Dec. 18, 2014  23andMe, Inc., the leading personal ... that pinpoints fine-scale differences in genetic ancestry of individuals ... Since immigrants first arrived more than four ... has served as a meeting place for peoples ... and the ongoing mixing of peoples with African, European, ...
(Date:12/17/2014)... N.C. , Dec. 16, 2014 Valencell, ... licensed its PerformTek biometric technology to industry leaders such ... highly accurate, clinically validated, biometric wearable products. These products ... 6-9 in Las Vegas . ... technology is accurate, flexible and robust – with the ...
(Date:12/11/2014)... 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition ... report to their offering. ... the adoption of multimodal biometric systems. Multimodal biometric ... individual for verification and identification purposes. This helps ...
Breaking Biology News(10 mins):23andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... as strawberry, clover, reed and ground elder naturally form ... a certain period of time by means of runners. ... each other via internal channels. They are therefore very ... to chat to each other about? Recently Stuefer ...
... Scientists have discovered how the zebrafish (Danio rerio) develops one ... growing list of tasks carried out by an important molecule ... cells to reproductive cells in the developing embryo. The ... which is distinctive because one of the four stripes running ...
... better understanding how antimicrobials bind and thereby get inactivated ... University of Illinois may have found a way to ... not a cure, this work has potential as a ... Gerard Wong a professor of materials science and engineering, ...
Cached Biology News:Study shows how the zebrafish gets his stripe 2Cystic fibrosis patients may breathe easier, thanks to bioengineered antimicrobials 2
(Date:12/24/2014)... China Biologic Products, Inc. (NASDAQ: CBPO, ... integrated plasma-based biopharmaceutical company in China ... Shandong Taibang Biological Products Co. Ltd., has received ... Food and Drug Administration (the "CFDA") for its ... in the Company,s public filings, the CFDA inspected ...
(Date:12/24/2014)... SARASOTA, Fla. , Dec. 23, 2014  Rock ... today that it has filed a Clinical Trial Application ... Medicines Healthcare products Regulatory Agency (MHRA) seeking regulatory approval ... its lead molecule, Anatabine Citrate. Contingent on ... to conduct a Phase I trial to assess the ...
(Date:12/22/2014)... 22, 2014 /PRNewswire/ - RepliCel Life Sciences Inc. (OTCQB: ... focused on the development of autologous cell therapies, announced ... University of Calgary in conjunction with co-authors from Kyoto ... validates the company,s ongoing clinical research using dermal sheath ... baldness. The paper entitled " Hair Follicle ...
(Date:12/22/2014)... December 22, 2014 The ... publication of original research, reviews and editorials addressing ... clinical practice, today published a provocative article exploring ... development, progression and potential treatment of prostate cancer. ... research and proposes the possibility that there could ...
Breaking Biology Technology:China Biologic Receives GMP Certification for New Coagulation Factor Facility 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 3Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 2Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 3Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 4Newly Released Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness 5Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 2Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 3Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 4
... Space ... the eighth scientific payload for Astrogenetix, a commercial biotech company created to use microgravity ... ... off from NASA’s Kennedy Space Center this morning, carrying on board the eighth scientific ...
... , Full enrollment occurs five months ahead of schedule , ... /PRNewswire-FirstCall/ - Resverlogix Corp. ("Resverlogix" or the "Company") (TSX:RVX) announced ... clinical study of its lead drug RVX-208. "The completion of ... months ahead of our original schedule, is a very exciting ...
... , , , , ... Feb. 8 /PRNewswire-Asia-FirstCall/ -- 3SBio Inc. (Nasdaq:, ... China -based biotechnology company,focused on researching, developing, manufacturing and ... Panacor Bioscience Ltd. to develop and commercialize its,Nephoxil(R) pharmaceutical ...
Cached Biology Technology:Astrogenetix Continues MRSA Vaccine Development Onboard Endeavor 2Astrogenetix Continues MRSA Vaccine Development Onboard Endeavor 3Resverlogix Completes Patient Recruitment for ASSERT Trial 2Resverlogix Completes Patient Recruitment for ASSERT Trial 3Resverlogix Completes Patient Recruitment for ASSERT Trial 43SBio and Panacor Bioscience Enter Collaboration and License Agreement to Develop and Commercialize Nephoxil(R) for Hyperphosphatemia 23SBio and Panacor Bioscience Enter Collaboration and License Agreement to Develop and Commercialize Nephoxil(R) for Hyperphosphatemia 33SBio and Panacor Bioscience Enter Collaboration and License Agreement to Develop and Commercialize Nephoxil(R) for Hyperphosphatemia 4
GEL FILTRATION CAL KIT HMW, 1 EA. *Category: Gel Filtration Gels....
Mouse monoclonal [6C3] to JAB1 ( Abpromise for all tested applications). entrezGeneID: 10987 SwissProtID: O15386...
Human TGF-beta RIIb Affinity Purified Polyclonal Ab...
Human FGF R2 (alpha isoforms) MAb (Clone 98706)...
Biology Products: