Enhanced Scenedesmus sp. growth in response to gibberellin secretion by symbiotic bacteria.
作者： Guohua Dao , Shengnan Wang , Xiaoxiong Wang , Zhuo Chen , Yinhu Wu
DOI: 10.1016/J.SCITOTENV.2020.140099
关键词:
摘要: Abstract Microalgae usually co-exist with bacteria, which may influence the microalgal growth, in aquatic environment. In this study, thirteen strains that can promote growth were isolated from Scenedesmus sp. LX1 culture. Additional results showed these could secrete gibberellin (GA), is a phytohormones, promoting and metabolism of LX1. Low concentration (0.1 mg L−1) GA increase microalgae biomass by 51% after 4 days. enhance photosynthetic activity increasing pigment content, such as culture 2 h low (0.1 mg L−1), chlorophyll β-carotene increased 0.59 μg per 106 cells to 0.72 μg 0.20 μg 0.38 μg cells, respectively. addition, also stimulate dehydrogenase activity, ATP accumulation, carbonic anhydrase metabolic microalgae. Interestingly, selectively bacterial secretion turn, indicating there was specific feedback regulation mechanism between bacteria. The study show new symbiotic-bacteria enhances growth. It's great significance understand water bloom
sci-hub.st 参考文章(44)
A. Karadeniz, Ş.F. Topcuoğlu, S. İnan, Auxin, Gibberellin, Cytokinin and Abscisic Acid Production in Some Bacteria World Journal of Microbiology and Biotechnology. ,vol. 22, pp. 1061- 1064 ,(2006) , 10.1007/S11274-005-4561-1
Yin Yu, Yin-Hu Wu, Shu-Feng Zhu, Hong-Ying Hu, The bioavailability of the soluble algal products of different microalgal strains and its influence on microalgal growth in unsterilized domestic secondary effluent Bioresource Technology. ,vol. 180, pp. 352- 355 ,(2015) , 10.1016/J.BIORTECH.2014.12.065
Atsushi Kouzuma, Kazuya Watanabe, Exploring the potential of algae/bacteria interactions. Current Opinion in Biotechnology. ,vol. 33, pp. 125- 129 ,(2015) , 10.1016/J.COPBIO.2015.02.007
Dae-Hyun Cho, Rishiram Ramanan, Jina Heo, Jimin Lee, Byung-Hyuk Kim, Hee-Mock Oh, Hee-Sik Kim, Enhancing microalgal biomass productivity by engineering a microalgal-bacterial community. Bioresource Technology. ,vol. 175, pp. 578- 585 ,(2015) , 10.1016/J.BIORTECH.2014.10.159
Philippe Eullaffroy, Guy Vernet, The F684/F735 chlorophyll fluorescence ratio: a potential tool for rapid detection and determination of herbicide phytotoxicity in algae. Water Research. ,vol. 37, pp. 1983- 1990 ,(2003) , 10.1016/S0043-1354(02)00621-8
Raul Muñoz, Benoit Guieysse, Algal–bacterial processes for the treatment of hazardous contaminants: A review Water Research. ,vol. 40, pp. 2799- 2815 ,(2006) , 10.1016/J.WATRES.2006.06.011
T.J Mulkey, K.M Kuzmanoff, M.L Evans, Promotion of growth and shift in the auxin dose/response relationship in maize roots treated with the ethylene biosynthesis inhibitors aminoethoxyvinylglycine and cobalt Plant Science Letters. ,vol. 25, pp. 43- 48 ,(1982) , 10.1016/0304-4211(82)90205-X
G. Zhao, J. Fu, G. Wang, P. Ma, L. Wu, J. Wang, Gibberellin-induced mesocotyl elongation in deep-sowing tolerant maize inbred line 3681-4 Plant Breeding. ,vol. 129, pp. 87- 91 ,(2010) , 10.1111/J.1439-0523.2009.01658.X
Li Xin, Hu Hong-ying, Gan Ke, Sun Ying-xue, Effects of different nitrogen and phosphorus concentrations on the growth, nutrient uptake, and lipid accumulation of a freshwater microalga Scenedesmus sp. Bioresource Technology. ,vol. 101, pp. 5494- 5500 ,(2010) , 10.1016/J.BIORTECH.2010.02.016
Kenneth C. Haines, Robert R. L. Guillard, GROWTH OF VITAMIN B12‐REQUIRING MARINE DIATOMS IN MIXED LABORATORY CULTURES WITH VITAMIN B12‐PRODUCING MARINE BACTERIA12 Journal of Phycology. ,vol. 10, pp. 245- 252 ,(1974) , 10.1111/J.1529-8817.1974.TB02709.X