9/7/2023 0 Comments Rosemary seedlings imagesAlso, adding spirulina and Klamath algae to Portulaca grandiflora culture medium promotes growth, flowering, chlorophyll content, and NPK absorption 4. platensis increased tomato plant length, diameter, fresh biomass of shoot, and fruit 3. platensis) has commercial importance for plants as a source of nutrients, proteins, vitamins, essential amino acids, fatty acids, polypeptides, phytohormones, and antioxidant compounds 2. Spirulina platensis (Cyanobacterial family) is a biofertilizer and could potentially be utilised as a bioremediation agent against cadmium, chromium, and lead 1. platensis at 0.1% significantly increasing growth parameters, oil content, photosynthetic pigments, and the activity of non-enzymatic and enzymatic antioxidants, while, slightly reduced TF of Cd and Pb, alleviated membrane lipid peroxidation, and significantly lowered the content of malondialdehyde, hydrogen peroxide, and indole acetic acid oxidase (IAAO) activity in heavy metal (Cd, Pb, and Cd + Pb)-treated rosemary plants. Nevertheless, compared with heavy metal treatments, S. Bioaccumulation factor (BF) and translocation factor (TF) indicated that Cd and Pb accumulated largely in the roots, with little transfer to the shoots. On the other hand, heavy metal stress reduced growth criteria, photosynthetic pigments, and oil yield, while, significantly increased levels of antioxidant enzymes (SOD, CAT, GR) and corresponding non-enzymatic antioxidants (ascorbic acid, total antioxidant capacity, phenolics and flavonoids). Spirulina platensis significantly improved growth parameters, oil yield/fed, photosynthetic pigments, and activity of superoxide dismutase (SOD), glutathione reductase (GR), catalase (CAT), and polyphenol oxidase (PPO) with a maximum promoting effect at 0.2% algal extract. In the present study, a pot experiment was conducted to investigate the response of rosemary ( Rosmarinus officinalis L.) plants to foliar application of Spirulina platensis at 0.0, 0.1, 0.2, and 0.4% soil irrigation with heavy metals (Cd nitrate, Pb acetate, and Cd + Pb, each at 100 ppm), and Spirulina platensis at 0.1% + heavy metals.
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