Abstract:
The effect of seed priming in culture filtrates of two blue-green algae namely Cylindrospermum muscicola and Anabaena oryzae (F1 and F2 respectively) on different growth criteria of Lupinus termis plants grown in siliceous soil collected from Gebel-El-Nargis was investigated. As compared to control plants, seed presoaking in the culture filetrate Cylindrospermum (F1) increased (P≤0.05) the photosynthetic activity, growth criteria, content of nitrogenous compounds and carbohydrates in the shoot of tested plant. On the other hand, these parameters seemed to be non-significantly affected when the seeds were presoaked in F2. In the majority of cases, seed pretreatment with F1 or F2 increased (P≤0.05) chl.a, chl.b, total chlorophylls and total pigments, whereas a reversed effect was manifested in carotenoid contents. The two culture filtrates; particularly F1 caused significant increase in auxin, gibberellic acid and cytokinin, whereas abscisic acid showed a reverse situation. Amylase, protease and aminotransferase activities were progressively increased in response to presoaking in the algal filtrates. Protein banding patterns generally showed disappearance of a 34 and 42 KDa protein and induction of 129 and from 3-8 KDa by F1 treatment, meanwhile certain protein (M wt: 18 KDa) were only induced following treatment with F2 but not occurring in either the control or F1 treatment. Application of both F1 or F2 increased the intensities of protein bands from 20-32 KDa.
S.A. Haroun and M.H. Hussein, 2003. The Promotive Effect of Algal Biofertilizers on Growth, Protein Pattern and Some Metabolic Activities of Lupinus termis Plants Grown in Siliceous Soil. Asian Journal of Plant Sciences, 2: 944-951.
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