نتایج جستجو برای: root initiation

تعداد نتایج: 233511  

2015
Frank Hochholdinger Chunjian Li Peng Yu Kai Eggert Nicolaus von Wirén

Running head: Lateral root initiation by local nitrate in maize 1 2 *Corresponding authors: 3 Frank Hochholdinger 4 Institute of Crop Science and Resource Conservation (INRES) 5 Crop Functional Genomics (CFG) 6 University of Bonn 7 Friedrich-Ebert-Allee 144 8 53113 Bonn, Germany 9 Tel.: +49 228 73 60334 10 Email: [email protected] 11 Chunjian Li 12 Department of Plant Nutrition 13 China...

2010
John G. Torrey JOHN G. TORREY

Roots of seedlings of the "beefwood" tree, Casuarina cunninghamiana Miq. grown in nitrogenfree nutrient solution were inoculated with a suspension prepared from crushed root nodules taken from mature plants. Marked deformation of root hairs was evident but no infection threads were observed in root hairs. The mode of infection remains undetermined. Root nodules were initiated within three weeks...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم تربیتی و روانشناسی 1388

on- the-job training on of the most effective tools for managers to cope with the changing organizational environment. it grantess suitable services to customers, particularly in public service enterprises. if such training os goal oriented, planned systematically, and tailored to the employees, job content, then not only it could increase employees and organizational performance, but also it c...

2015
Joop E. M. Vermeer Niko Geldner

Osmotically driven turgor pressure of plant cells can be higher than that of a car tire. It puts tremendous forces onto cell walls and drives cell growth and changes in cell shape. This has given rise to unique mechanisms to control organ formation compared to metazoans. The fascinating interplay between forces and local cellular reorganization is still poorly understood. Growth of lateral root...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Franck Anicet Ditengou William D Teale Philip Kochersperger Karl Andreas Flittner Irina Kneuper Eric van der Graaff Hugues Nziengui Francesco Pinosa Xugang Li Roland Nitschke Thomas Laux Klaus Palme

Lateral roots are initiated postembryonically in response to environmental cues, enabling plants to explore efficiently their underground environment. However, the mechanisms by which the environment determines the position of lateral root formation are unknown. In this study, we demonstrate that in Arabidopsis thaliana lateral root initiation can be induced mechanically by either gravitropic c...

Journal: :The Plant cell 2007
Laurent Laplaze Eva Benkova Ilda Casimiro Lies Maes Steffen Vanneste Ranjan Swarup Dolf Weijers Vanessa Calvo Boris Parizot Maria Begoña Herrera-Rodriguez Remko Offringa Neil Graham Patrick Doumas Jiri Friml Didier Bogusz Tom Beeckman Malcolm Bennett

In Arabidopsis thaliana, lateral roots are formed from root pericycle cells adjacent to the xylem poles. Lateral root development is regulated antagonistically by the plant hormones auxin and cytokinin. While a great deal is known about how auxin promotes lateral root development, the mechanism of cytokinin repression is still unclear. Elevating cytokinin levels was observed to disrupt lateral ...

Journal: :Plant physiology 2015
Guangjie Li Haiyan Song Baohai Li Herbert J Kronzucker Weiming Shi

A stunted root system is a significant symptom of iron (Fe) toxicity, yet little is known about the effects of excess Fe on lateral root (LR) development. In this work, we show that excess Fe has different effects on LR development in different portions of the Arabidopsis (Arabidopsis thaliana) root system and that inhibitory effects on the LR initiation are only seen in roots newly formed duri...

Gorban Ali Nematzadeh Maryam Jafarkhani Kermani, Mohammad Reza Bihamta Pegah Khosravi

Interactive effect of plant growth regulators 6-Benzylaminopurine (BAP) (0, 2, 4 and 8 <span style="font-variant: normal; font-style: normal; font-family: SymbolMT; color: #23...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید