Journal
SCIENTIA HORTICULTURAE
Volume 121, Issue 4, Pages 458-461Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scienta.2009.03.013
Keywords
Poncirus trifoliate L. Raf.; Arbuscular mycorrhizal fungi; Root system architecture; Distribution of root diameter size classes
Categories
Funding
- NSF of Guangdong [E05202480]
- Agriculture Ministry of China [nyhyzx07-09]
- SEM of China
Ask authors/readers for more resources
Plant root system architecture is essential characteristics in relation to nutrient acquisition by root system from soil volume. Many environmental factors can affect the establishment of root system architecture, e.g. arbuscular mycorrhizal (AM) fungi. We inoculated the trifoliate orange (Poncirus trifoliata L. Raf.) seedlings with four AM fungal species in rhizoboxes, with non-inoculated seedlings as control. Using the WinRHIZO (R) image analysis system, the root system architecture of seedlings was characterized. Results indicated that AM colonization did not affect the tap root length, the average root diameter, the basal root growth angle in spite that four AM fungal species exerted differential influence on the plant growth. Contrastingly, AM colonization significantly reduced the total root length, the root volume, the root surface area, but promoted the formation of lateral roots of high order. In addition, AM colonization induced more fine roots and less coarse roots. To our knowledge, it is the first report on the influence of AM fungi on the distribution of root diameter size classes. The mechanisms and implication of AM fungi on root system architecture is discussed. (c) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available