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Filament seedling and mariculture method of grateloupia filicina

A cultivation method and technology for centipede algae, which are applied in the fields of botanical equipment and methods, seaweed cultivation, climate change adaptation, etc., can solve problems such as inability to carry out large-scale cultivation, slow growth rate of centipede algae filaments, artificial breeding restrictions, etc. The effect of high-quality artificial seedlings and breeding

Active Publication Date: 2013-12-25
南通中国科学院海洋研究所海洋科学与技术研究发展中心 +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the slow growth rate and easy pollution of centipede filaments, it cannot be cultivated in large quantities, which has caused many restrictions on artificial breeding.

Method used

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  • Filament seedling and mariculture method of grateloupia filicina

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Centipede algae (Grateloupia filicina) filaments 2g (fresh weight), crushed in a tissue grinder until each segment of filamentous algae contains no more than 10 cells.

[0029] The broken filaments were inoculated on clam shells and left to stand; 2 days later, adding seawater medium rich in inorganic nitrogen and phosphorus for light cultivation, the surface light intensity was 52μEm -2 the s -1 , The light-dark cycle is 12h:12h. The seawater was replaced every 5 days, and cultured with aeration after 10 days. After 20 days, the clam shell surface was covered with discs; 25 days, upright branches grew; 40 days, the shells were covered with 1-2mm centipede algae seedlings, and the cultivation process was as follows: figure 1 shown.

[0030] figure 1 The cultivation process in is divided into the following steps according to the direction of the arrow: the state of centipede algae filaments → the filaments collect shells → form discs → the discs produce upright sho...

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Abstract

The invention provides a filament seedling and mariculture method of grateloupia filicina. According to the method, induction totipotency expression is performed on asexual cells of the filament of the grateloupia filicina with a manual means, thus obtaining the grateloupia filicina plant capable of being subjected to mariculture. The filament seedling and mariculture method is different from the traditional spore seedling cultivation and is not limited by seasons and the filament can be utilized for manual seedling anytime.

Description

technical field [0001] The invention relates to the technical field of algae cultivation, in particular to filamentous seedlings of centipede algae and a sea culture method thereof. Background technique [0002] Centipede Algae ( Grateloupia filicina ) is widely used in the food industry and textile industry because of its rich carrageenan. In recent years, the demand for raw materials of centipede algae has increased, but the source of centipede algae is limited, wild resources are decreasing day by day, and the growth rate is slow , it is difficult to guarantee supply, and the bottleneck of artificial breeding is the problem of seedlings. [0003] Except for kelp, seaweed, and wakame, most economic seaweeds still follow the production mode of collecting seed algae→collecting spores→cultivating seedlings→mariculture. In addition to being limited by seasons, due to the complex life history of large seaweeds, it is difficult to preserve a large number of high-quality germpla...

Claims

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Application Information

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IPC IPC(8): A01G33/00
CPCY02A40/80
Inventor 王金霞董瑞琪张海霞周百成
Owner 南通中国科学院海洋研究所海洋科学与技术研究发展中心
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