Application of Phytohormones in Promoting Growth Rate, Calcification and Photosynthesis of Macroalgae

A plant hormone and calcification technology, applied in plant growth regulators, plant growth regulators, applications, etc., can solve problems such as differences between species, and achieve the effects of easy purchase, low price, and wide application range

Active Publication Date: 2021-08-13
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that plant hormones have regulatory effects on some algae, and there are obvious interspecies differences

Method used

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  • Application of Phytohormones in Promoting Growth Rate, Calcification and Photosynthesis of Macroalgae
  • Application of Phytohormones in Promoting Growth Rate, Calcification and Photosynthesis of Macroalgae
  • Application of Phytohormones in Promoting Growth Rate, Calcification and Photosynthesis of Macroalgae

Examples

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Embodiment 1

[0029] 1. Sample collection and holding

[0030] The large-scale calcified seaweed Halimeda opuntia was selected as the experimental material. The algae were collected from the Xisha coral reef area at a depth of 4-14m. The aerated culture was transported to the laboratory circulating water culture tank for 2 weeks. Temporary culture conditions Salinity 33-34ppt, water temperature 26-28℃, pH 8.1-8.3, light-dark cycle 12L:12D, light intensity 150μmol photons m - 2 the s -1 , during the temporary cultivation period, the growth of cactus algae was in good condition, and there was no obvious albino phenomenon.

[0031] 2. Case Design

[0032]At the beginning of the experiment, select cactus algae in good condition, remove the attached sediment and miscellaneous algae with filtered seawater, place them in a 30L acrylic cultivation tank with 25L seawater, and add different types and concentrations of exogenous plants respectively Hormones (indoleacetic acid (IAA), naphthaleneace...

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Abstract

The invention discloses the application of a plant hormone in promoting the growth rate, calcification and photosynthesis of large calcified algae. In the present invention, by exploring the effects of IAA, NAA, GA and 6-BA on the growth of large calcified algae under different concentration conditions, it is clear that the four plant hormones all exhibit the characteristics of promotion at low concentrations and inhibition at high concentrations, and the promotion effect of IAA and NAA Significantly higher than GA and 6‑BA. The cultivation mode of adding exogenous plant hormones provided by the present invention has the effect of significantly improving the growth of large calcified seaweeds. Compared with the traditional cultivation, the method provided by the present invention is simple, fast and low in cost, and the cultivated large calcified seaweed can be directly used in the ecological restoration of damaged coral reefs, and it can be used in restoring and maintaining the diversity and stability of coral reef ecosystems. Has a wide range of uses.

Description

Technical field: [0001] The invention belongs to the field of biotechnology, and specifically relates to the application of plant hormones in promoting the growth rate, calcification and photosynthesis of large calcified algae. Background technique: [0002] Calcifying macroalgae (Calcifying macroalgae), as an important class of calcifying organisms in coral reef ecosystems, is widely distributed. There are 234 species and varieties of macroalgae recorded in my country. They have an extremely important ecological position in the coral reef ecosystem. They can not only improve high primary productivity, participate in and stabilize coral reefs, but some large calcified algae can also provide a good substrate for marine invertebrate larvae to attach and metamorphose. However, in recent decades, under the dual influence of global climate change and human activities, coral reef ecosystems around the world have been seriously degraded, and the biomass and diversity of large calci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G33/00A01G7/06A01N43/38A01N37/10A01N45/00A01N43/12A01N43/90A01P21/00
CPCA01G7/06A01G33/00A01N37/10A01N43/12A01N43/38A01N43/90A01N45/00Y02A10/26Y02A40/80
Inventor 龙丽娟杨芳芳韦章良
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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