Screening fungal partners for enhancing the vitality of a xenic algal culture via photosynthetic efficiency.

IF 5.4 2区 生物学 Q1 PLANT SCIENCES
Krzysztof Sikorski, Przemysław Ryszka, Piotr Dąbrowski, Hazem M Kalaji, Katarzyna Turnau
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Abstract

The xenic strain Chlorella sorokiniana was grown together with selected fungal strains to investigate the effect of fungi on the algal photosynthetic performance during cultivation. The introduction of well-selected fungal strains can potentially increase algal cultivation efficiency. The bacteria that inhabited the algae were identified and the coexistence of the fungi with the algae and bacteria in liquid and solid media was examined. Chlorophyll a fluorescence measurement, a commonly used method for determining the efficiency of plant photosynthesis under stressful conditions, was used to assess the condition of the algae. The algae were cultivated for eight weeks without supplementing the nutrient solution. The experiments showed that the fungal strains Clonostachys rosea, Rhodotorula mucilaginosa and Mortierella alpina formed stable interactions with the microalga C. sorokiniana and the bacteria in the microalgal culture. The time of the measurement and treatments caused changes in the fluorescence curve patterns. Differences in the profiles of the curves in different phases revealed modifications in the operation of the light-dependent photochemical reactions. Generally, the most positive changes in the chlorophyll a fluorescence induction curves (OJIP) were recorded in the double inoculation of C. sorokiniana with R. mucilaginosa + M. alpina and R. mucilaginosa + C. rosea. The results show that selected combinations of fungal strains can be a tool to improve the photosynthetic efficiency of C. sorokiniana.

筛选真菌伙伴,通过光合效率提高异种藻类培养的活力。
将异种小球藻(Chlorella sorokiniana)与选定的真菌菌株一起培养,研究真菌在培养过程中对藻类光合性能的影响。引入精心挑选的真菌菌株可以潜在地提高藻类培养效率。鉴定了栖息在藻类中的细菌,并考察了真菌与藻类和细菌在液体和固体培养基中的共存情况。叶绿素a荧光测量是测定胁迫条件下植物光合作用效率的常用方法,用于评估藻类的状况。在不补充营养液的情况下培养藻类8周。实验结果表明,真菌菌株玫瑰红孢菌、粘液红霉菌和高山Mortierella alpina与微藻C. sorokiniana和微藻培养中的细菌形成了稳定的相互作用。测量时间和处理时间引起荧光曲线模式的变化。不同相态下曲线轮廓的差异揭示了依赖光的光化学反应操作的改变。总的来说,叶绿素a荧光诱导曲线(OJIP)的阳性变化以双接种牛毛霉+牛毛霉的结果最为明显。alpina和R. mucilaginosa + C。rosea。结果表明,选择真菌菌株组合可以作为提高sorokiniana光合效率的工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Physiologia plantarum
Physiologia plantarum 生物-植物科学
CiteScore
11.00
自引率
3.10%
发文量
224
审稿时长
3.9 months
期刊介绍: Physiologia Plantarum is an international journal committed to publishing the best full-length original research papers that advance our understanding of primary mechanisms of plant development, growth and productivity as well as plant interactions with the biotic and abiotic environment. All organisational levels of experimental plant biology – from molecular and cell biology, biochemistry and biophysics to ecophysiology and global change biology – fall within the scope of the journal. The content is distributed between 5 main subject areas supervised by Subject Editors specialised in the respective domain: (1) biochemistry and metabolism, (2) ecophysiology, stress and adaptation, (3) uptake, transport and assimilation, (4) development, growth and differentiation, (5) photobiology and photosynthesis.
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