Title
Molecular and Biochemical Studies on PII protein: Nitrogen Fixing bacteria paenibacillus polymyxa,Used
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Acknowledgment: I thank God for all the blessings. I would like to express my kindest regards and gratefulness to my supervisor Dr. Hassan Mahmoud Gebreel, Assistant Professor of Microbiology, Ain shams University and Dr. Khaled Zakaria ElBaghdady, Lecturer of Microbiology, Ain shams University for their valuable guidance, direct supervision and their valuable revision. My deep gratitude and sincere thanks to Prof. Dr. Hussein AbdKareem Ahmed, Professor of Microbiology, NCCRT institute for his effort in constructive criticism and valuable critical reading and revision the manuscript. Sincere especial thanks are to prof.Dr. Nahed Abdel Ghaffar Abdel Aziz Ibrahim Head of Microbial Molecular Biology Department, AGRI institute , great encouragement, her effort throughout the Ph.D, valuable scientific ideas and advices. Also, for her inspiring guidance. I wish to thank Prof. Dr. Karl Forchhammer at Tubingen University for his unlimited support, valuable advice, sending some important chemicals used in this work. I also, like to thank him giving the chance to learn with right way. Finally, my great respect and gratitude to every one who participated in completion of this work.
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⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, please visit www.P65Warnings.ca.gov.
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Shipping & Returns
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We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.