Nodulation in the legume biofuel feedstock tree Pongamia pinnata

Samuel, Sharon, Scott, Paul T. and Gresshoff, Peter M. (2013) Nodulation in the legume biofuel feedstock tree Pongamia pinnata. Agricultural Research, 2 3: 207-214. doi:10.1007/s40003-013-0074-6

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Author Samuel, Sharon
Scott, Paul T.
Gresshoff, Peter M.
Title Nodulation in the legume biofuel feedstock tree Pongamia pinnata
Formatted title
Nodulation in the legume biofuel feedstock tree Pongamia pinnata
Journal name Agricultural Research   Check publisher's open access policy
ISSN 2249-720X
Publication date 2013-09
Sub-type Article (original research)
DOI 10.1007/s40003-013-0074-6
Open Access Status DOI
Volume 2
Issue 3
Start page 207
End page 214
Total pages 8
Place of publication Heidelberg, Germany
Publisher Springer
Collection year 2014
Language eng
Formatted abstract
The legume tree Pongamia pinnata (also called Millettia pinnata) is gaining importance as a biofuel feedstock tree because of the abundant annual production of oil-rich seeds, adaptation to a wide range of geoclimatic conditions and significant resistance to abiotic stress, such as water-deficit, salinity and acidity of soils. The major defining benefit of using pongamia as a biofuel feedstock is that it is a legume, enabling biological nitrogen fixation through symbiosis with soil bacteria, collectively called rhizobia, which results in root nodulation. Here, we report preliminary data, (i) indicating the range of rhizobia that can form nodules on pongamia, (ii) demonstrating the measurement of nitrogen fixation activity of pongamia nodules via the classical acetylene reduction assay, (iii) illustrating nodule morphology and development and (iv) demonstrating aspects of nodule regulation by external nitrate as well as internal autoregulation of nodulation. We note that in pongamia most nodulation-related characteristics are similar to those found in other annual crop legumes such as soybean.
Keyword Rhizobia
Autoregulation of nodulation
Nitrogen fixation
Q-Index Code CX
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
School of Agriculture and Food Sciences
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Created: Wed, 05 Mar 2014, 10:07:41 EST by Susan O'Brien on behalf of Centre for Integrative Legume Research