Robinia pseudoacacia, a model tree legume
Robinia pseudoacacia has a number of attributes as a model tree legume, due to one of the highest net photosynthetic rates amoung woody plants (up to 36 µM CO2 x m-2 x s -1), resistance to a number of stresses, early flowering, production of abundant seeds already after three years and a significant genetic variation (Hanover, 1990). With these characters it has a number of advantages compared to the list of 50 nitrogen fixing trees proposed by the Nitrogen Fixing Tree Association considered for their economical or ecological importance (Brewbaker, 1990). All these specific characters can be studied in relation to nodulation and nitrogen fixation by Rhizobium loti (Werner et al., 1996), to VA-mycorrhiza infection (Werner, 1992) and also to other ecological important aspects such as growth on degraded soils due to the very plastic and efficient root system.
KeywordsRoot Exudate Black Locust Rhizobium Strain Robinia Pseudoacacia Significant Genetic Variation
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