Article
Agricultural Engineering
Jin-meng Li, An-ping Du, Peng-hui Liu, Xue-ping Tian, Yan-ling Jin, Zhuo-lin Yi, Kai-ze He, Yang Fang, Hai Zhao
Summary: This study focused on investigating the mechanisms of starch accumulation and efficient phosphate recycling in the duckweed strain Landoltia punctata 0202 under phosphate starvation conditions. The research revealed the increased biomass yield, phosphorus utilization efficiency, and starch content in response to phosphate starvation. Transcriptomic analysis showed upregulation of genes related to starch synthesis and phosphate transporters. These findings offer insight into molecular mechanisms influencing nutrient uptake and utilization in plants, with potential implications for crop improvement under stressful environmental conditions.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Environmental Sciences
Xueping Tian, Yang Fang, Yanling Jin, Zhuolin Yi, Jinmeng Li, Anping Du, Kaize He, Yuhong Huang, Hai Zhao
Summary: The study found that ammonium stress inhibits the growth of ammonium-tolerant duckweed, especially when ammonium is the sole nitrogen source; ammonium mainly enters cells via low-affinity transporters; duckweeds can counter excess ammonium assimilation by increasing starch content and activating starch synthesis, degradation, and glycolysis processes.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Xianglian Wang, Baojun Zhang, Daishe Wu, Liang Hu, Ting Huang, Guiqing Gao, Shan Huang, Shan Wu
Summary: Duckweed, as an ideal candidate for restoring cadmium-polluted waters, showed that cell wall immobilization and protein binding are primary mechanisms for detoxification of Cd, mainly through changes in chemical forms.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Plant Sciences
Guimin Chen, Anton Stepanenko, Nikolai Borisjuk
Summary: Duckweeds are a group of fast-growing aquatic plants with various applications worldwide. The study on 5S rDNA genes in Landoltia punctata identified diverse NTS variants, which may contribute to understanding the evolution of plant rDNA. The findings could stimulate further research on molecular forces driving rDNA evolution.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Suchata Kirdponpattara, Chokchai Kittiwongwattana, Muenduen Phisalaphong, Salil Chanroj, Malinee Sriariyanun
Summary: This study proposed three integrated processes for utilizing Landoltia punctata in biogas effluent treatment and starch accumulation. The third process was focused on in this study, involving wastewater treatment and production of L. punctata with high starch content. L. punctata showed better TKN removal and biomass production than Lemna aequinoctialis. The upregulation of AGPase genes in the starch biosynthesis pathway was observed when the environmental conditions changed.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Biotechnology & Applied Microbiology
Mingxiu Wang, Ya Dai, Xinyu Li, Xinrong Ma, Caixia Li, Xiang Tao
Summary: This study uncovered the molecular mechanism of fast starch accumulation in Landoltia punctata, including the cDNA sequences, structures, subunit interactions, expression patterns, and subcellular localization of AGPase.
BIOMED RESEARCH INTERNATIONAL
(2022)
Article
Environmental Sciences
Xianglian Wang, Liang Hu, Daishe Wu, Ting Huang, Baojun Zhang, Guanjun Cai, Guiqing Gao, Zhanmeng Liu, Xueping Huang, Zhiyao Zhong
Summary: Cadmium pollution caused by industrialization and urbanization is a severe issue in China. Duckweeds have shown potential for phytoremediation of Cd, but intraspecific variations in Cd accumulation in duckweeds remain largely unknown. This study identified an accession of Landoltia punctata, which demonstrated the highest Cd accumulation while maintaining high biomass. Different Cd concentrations affected the biomass and transport characteristics of L. punctata 0701. The bioaccumulation factor decreased with increasing Cd levels, and the Cd removal rate decreased with higher Cd concentrations. Furthermore, Cd treatment caused damage to the ultrastructure of L. punctata 0701.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agricultural Engineering
Zuoliang Sun, Wenjun Guo, Xuyao Zhao, Yan Chen, Jingjing Yang, Shuqing Xu, Hongwei Hou
Summary: Sulfur limitation is an effective approach to increase starch yield in duckweed without affecting growth or biomass production.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Review
Plant Sciences
Klaus-J Appenroth, Paul Ziegler, K. Sowjanya Sree
Summary: Starch accumulation in duckweeds is influenced by factors such as growth conditions, stress, and growth regulators. Biotechnological methods for converting duckweed starch into sugars and fermenting them into bio-alcohols are being explored for biofuel production.
PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS
(2021)
Article
Plant Sciences
Walaa M. R. M. Adly, Gniewko Niedbala, Mohammad E. EL-Denary, Mahasen A. Mohamed, Magdalena Piekutowska, Tomasz Wojciechowski, El-Sayed T. Abd El-Salam, Ahmed S. Fouad
Summary: This study aimed to create potato somaclones with an improved potential for starch accumulation. Through the upregulation of six starch-synthesis-related genes, the somaclonal variant Ros 119 exhibited increased starch content and enhanced tuberization potential compared to the parent cv Lady Rosetta. This somaclonal variant provides a valuable resource for potato breeding programs.
Article
Plant Sciences
Niklas Reichelt, Arthur Korte, Markus Krischke, Martin J. Mueller, Daniel Maag
Summary: High temperature stress affects plant growth and reproduction, but plants also have physiological responses to protect against heat damage. This study investigated the variation in raffinose accumulation as a marker for temperature responsiveness in 250 Arabidopsis thaliana accessions. Genome-wide association studies identified five genomic regions associated with this trait. Functional analysis confirmed the role of TREHALOSE-6-PHOSPHATE SYNTHASE 1 (TPS1) in warm temperature-dependent raffinose synthesis.
PLANT CELL AND ENVIRONMENT
(2023)
