Stud[es on the Metabolism of Plant Neoplasms, v. a Uxin as a Promoting Agent in the Trans- Forma Tion of Normal to Crown-gall Tumor
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Antitumor properties of two traditional aromatic rice genotypes (Kalijira and Chinigura)
Objective: Methanol extract of bran and unpolished grain of two traditional aromatic rice genotypes viz. Kalijira and Chinigura were assayed for their activity on the growth and initiation of crown-gall tumors on potato disks. Materials and Methods: Three Agrobacterium tumefaciens (A. tumefaciens) strain AtSl0105, AtTa0112, and AtAc0114 were used as the tumor forming agent. Collected rice was s...
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Cultivar of roses (Rosa spp.) has been grown in greenhouses in Qazvin region of Iran for local markets. Agrobacterium tumefaciens strains were isolated and identified from six different samples of roses plants imported from the Netherland to Iran. During August and September of 2012, nearly 2-5% of rose plants in two different greenhouses in the province of Qazvin were observed with crown gall ...
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Chinaberry (Melia azedarach L.) is a beautiful tree indigenous to the Himalayas that grows as a native plant in Iran. Symptoms similar to bacterial gall have been observed on the crown, shoot and twig of chinaberry, a recent landscape tree since 2003-2004 in Shiraz, Fars province, south of Iran. A gram negative bacterium was isolated from the galls. The isolates did not produce fluorescent pigm...
متن کاملThe activation of two growth-substance systems accompanying the conversion of normal to tumor cells in crown gall.
Crown gall, a neoplastic disease of plants, is of interest because the inciting bacterium, Agrobacterium tumefaciens (Smith and Town.) Conn, converts normal plant cells to tumor cells in short periods of time. Once the cellular alteration has been accomplished, the continued abnormal proliferation of the affected host cells becomes completely independent of the inciting organism. These findings...
متن کاملCrown gall as an anatomical and cytological problem: a review.
Crown gall is a plant disease that affects Gym nosperms and Dicotyledons and produces more or less anaplastic tumors in most parts of the host plant. The causative organism, Agrobacterium fume fade,n.@ (Smith & Town) Conn., induces the out growths by acting on host cells conditioned by wounding. Once the cells have been transformed, the inciting agent becomes unnecessary. Hence forth the tumor ...
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