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A kind of construction method of lotus regeneration system
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A technology for constructing a method and a system, applied in the field of plant tissue culture, can solve the problems of high pollution rate and high lethality rate, and achieve the effects of low pollution rate, guaranteed sources, and widening the selection range.
Active Publication Date: 2017-01-25
镇江市彩林生态农业观光有限公司
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Kong Dezheng et al. (2007) found that direct sterilization of seed embryos obtained by corroding lotus seed shells with concentrated sulfuric acid will lead to a high pollution rate, and prolonged time will lead to a high mortality rate.
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Embodiment 1
[0031] A method for constructing a lotus regeneration system is as follows:
[0032] (1) The preparation of the medium, including the basic medium and the components of the medium at each stage and the weight per liter are:
[0079] (2) In March 2014, the round and plump seeds of "Guangchang Bailian" were selected to be sterilized with 75% alcohol for 30 seconds, rinsed with sterile water once, soaked in 3% sodiumhypochlorite for 8 minutes, and rinsed with sterile water for 3 times. spare.
[0080] (3) Cut the lotus seeds with sterile pruning shears, take out the lotus core as ...
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Abstract
The invention discloses a method for establishing a lotus regeneration system. The method comprises the following steps: breaking shells of sterilized Guangchang white lotus seeds by using pruning shears; taking out mature lotus nuts (embryos) as explants to culture aseptic seedlings; cutting 2-3mm of stem tips and folded tender leaves (with short petiole) as explants for inducing callus from the aseptic seedlings after 2 months; inducing and differentiating the callus to develop buds after 2 months; after 1 month, cutting off the black callus at the bottom, and proliferating the differentiated seedlings; after 3 months, inducing the differentiated seedlings to develop roots; and strengthening, domesticating and transplanting the rooted tissue culture seedlings after 1 month. By adopting the method, technical basis is provided for transgenic technology of lotus in China, and the inductive callus rate of lotus is increased and the callus is large and stable in size compared with a conventional technique; the propagation coefficients of adventitious buds are increased; as tender leaves of aseptic seedlings of lotus are innovatively taken as explants for inductive callus and are successfully differentiated to obtain seedlings, the material selection of lotus inductive callus is widened, and material guarantee is provided.
Description
Technical field [0001] The invention relates to the technical field of planttissue culture, and relates to a method for constructing a lotus regeneration system. Background technique [0002] The lotus (Nelumbo nucifera Gaertn.) is a perennial aquatic flower of the Nelumbo nucifera Gaertn. It is one of the top ten traditional famous flowers in China. It has high ornamental value, economic value and unique cultural connotation, and is deeply loved by people. [0003] In May 2013, the whole genome sequence of the lotus was announced, putting the genetic modification research of lotus on the work schedule. The genetic transformation and regeneration system of lotus, which is an important technical basis for transgenic technology, is not yet mature, which severely restricts the development of lotus transgenic work. There are currently two ways to regenerate lotus lily. One way is to directly differentiate from the stem tip to form clustered seedlings, then proliferate, and finally in...
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