Article
Environmental Sciences
N. Aftab, K. Saleem, A. H. A. Khan, T. A. Butt, C. R. Mirza, J. Hussain, G. Farooq, A. Tahir, S. Yousaf, M. I. Zafar, I. Nawaz, M. Iqbal
Summary: Heavy metals such as lead, copper, and chromium can have detrimental effects on plant growth and development. The ornamental plant Cosmos sulphureus Cav. showed varying levels of growth reduction in response to different concentrations of these metals in a hydroponics system. Lead was mainly accumulated in the roots of the plant, while copper and chromium were also mainly found in the roots at certain concentrations in the external solution. Further research is needed to understand the mechanisms behind lead homeostasis in roots and the potential of Cosmos sulphureus Cav. as a lead hyperaccumulator.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yuanfang Liang, Qi-Tang Wu, Charles C. C. Lee, Cheng'ai Jiang, Zebin Wei
Summary: The field experiments and pot experiments showed that the combination of zeolite stabilization and manganese fertilizer can effectively reduce the cadmium content in rice, while also affecting the manganese content in rice straw.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Plant Sciences
Ran Zhang, Qin Liu, Xiangting Xu, Ming'an Liao, Lijin Lin, Rongping Hu, Xian Luo, Zhihui Wang, Jin Wang, Qunxian Deng, Dong Liang, Hui Xia, Xiulan Lv, Yi Tang, Xun Wang
Summary: The study showed that amino acid fertilizer can enhance the biomass and photosynthetic pigment contents of N. officinale, facilitating the uptake and extraction of Cd by the plant. Optimal concentration of amino acid fertilizer can improve the phytoremediation capability of N. officinale for Cd-contaminated paddy soils.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Xing-Yu Liu, Hong Ou, Hans Gregersen, Jing Zuo
Summary: A hybrid procedure combining ultrasound-assisted supercritical CO2 extraction (UASCE) and Taguchi approach optimization was developed for the extraction of Cosmos sulphureus seed oil (CSSO). The CSSO obtained by UASCE exhibited higher oil yield, higher contents of beneficial compounds, and better physicochemical characteristics compared to traditional techniques. Additionally, the kinetics study showed that the extraction process was mainly driven by convective mechanisms with increased mass transfer coefficients and reduced extraction periods due to the ultrasound assistance. Therefore, UASCE can be considered a high-performance and sustainable technique for plant oil extraction in the food and dietary supplement industries. Cosmos sulphureus is a potential source of edible oil with excellent nutritional properties.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Plant Sciences
Rubi Julieta Ortega-Medrano, Luis Fernando Ceja-Torres, Monserrat Vazquez-Sanchez, Guillermo Cristian Guadalupe Martinez-Avila, Jose Roberto Medina-Medrano
Summary: The phytochemical composition, phenolic content, and antioxidant activity of ethanolic and methanolic extracts from leaves and flowers of Cosmos sulphureus were determined. The extracts were found to have high contents of phenolic, flavonoid, and condensed tannins, and showed relevant antioxidant activities. This research highlights the phytochemical profile and antioxidant activity of phenolic compounds-rich extracts from C. sulphureus.
Article
Environmental Sciences
Zhansheng Mao, Bo Liu, Xianzhi Fang, Jiawei Ma, Dan Liu, Zhisheng Gao, Melisa Munoz Castillo, Zhengqian Ye
Summary: This study explored the effects of alternating current (AC) electric field and fertilization on the phytoremediation efficiency of Cd-contaminated soil. The results showed that the application of AC electric field with organic fertilizer had the most significant promotion effect, increasing plant shoot Cd accumulation by 98.99%. There was a significant interaction between the electric field and fertilizer application, and the combination of AC electric field and Chinese milk vetch organic fertilizer resulted in the strongest improvement in plant Cd uptake.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Biology
Aziz Purwantoro, Muhammad Burhanuddin Irsyadi, Widhi Dyah Sawitri, Nor Chamidah Fatumi, Shania Nur Fajrina
Summary: This study developed an effective and efficient floral dip transformation method for yellow cosmos, achieving a transformation efficiency of 12.78 ± 1.53%. By optimizing parameters such as Agrobacterium culture density, surfactant concentration, and dipping duration, the flower buds were dipped into an Agrobacterium suspension with OD600 = 0.8, 5% sucrose, and 0.1% Silwet L-77 for 30 seconds. The transgenic plants showed resistance to kanamycin and fluorescence under ultraviolet light, confirming successful genetic engineering.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2023)
Article
Plant Sciences
Xing-Yu Liu, Hong Ou, Hans Gregersen, Jing Zuo
Summary: In this study, deep eutectic solvents-based ultrasound-assisted extraction (DES-UAE) was used to extract polyphenols from Cosmos sulphureus. The choline chloride-lactic acid (1:2) DES was found to be the best solvent for polyphenols extraction. Results showed that DES-UAE resulted in higher total polyphenolic content and antioxidant activity compared to conventional ethanol-based extraction. HPLC analysis also confirmed the improved concentration of target polyphenols using DES-UAE. Overall, DES-UAE is a viable, sustainable, and efficient technique for obtaining polyphenols from Cosmos sulphureus.
JOURNAL OF APPLIED RESEARCH ON MEDICINAL AND AROMATIC PLANTS
(2023)
Article
Chemistry, Multidisciplinary
Francesca Sabatini, Jocelyn Alcantara-Garcia, Ilaria Degano
Summary: By analyzing the petals of Cosmos sulphureus, it was identified as the dye source for a yellow Chimu / Chancay textile from 1000-1047 AD. The study also looked into the role of mordants and aging in dyeing processes by analyzing both mordanted and un-mordanted yarns dyed with Cosmos sulphureus petal extract.
Article
Engineering, Environmental
Guangyu Shi, Jiayuan Hu, Shuhan Zhang, Gang Ni, Weilin Shi, Chengxiao Hu, Xiaohu Zhao
Summary: Applying selenium effectively improved the phytoremediation efficiency of NP and Cd in co-contaminated soil, while increasing the abundance and diversity of beneficial bacterial populations.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Plant Sciences
Kangning Zhou, Yingying Zhang, Jiasen Wu, Chunying Dou, Zihao Ye, Zhengqian Ye, Weijun Fu
Summary: Proper application of nitrogen, phosphorus, potassium fertilizers, and organic manure can enhance the ability of S. alfredii to accumulate Zn and Cd. The supply levels of N and P can impact plant growth and metal accumulation. Adequate fertilizer supply can significantly improve overall biomass production and metal accumulation.
PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Environmental Sciences
Jianjincang Song, Yongyun Li, Hao Tang, Chengshu Qiu, Ling Lei, Maolin Wang, Heng Xu
Summary: This study investigated the cadmium retention capacity of blueberry plants and evaluated their potential through pot experiments. The results showed that blueberry biomass and stress response were positively affected by different soil cadmium concentrations. Furthermore, blueberry cultivation improved the micro-ecological environment of cadmium-contaminated soil.
Article
Environmental Sciences
Salwinder Singh Dhaliwal, Vivek Sharma, Parminder Kaur Taneja, Arvind Kumar Shukla, Lovedeep Kaur, Gayatri Verma, Vibha Verma, Jagdish Singh
Summary: The study investigated the effect of adding the chelating agent ethylenediamine tetraacetic acid (EDTA) on the uptake of cadmium (Cd) by different Brassica species (Brassica juncea L., Brassica campestris L., and Brassica napus L.). Results showed that, with increasing Cd and EDTA levels, the overall root dry biomass of all tested species decreased, while Brassica juncea exhibited the highest Cd accumulation at certain Cd and EDTA levels.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Hongda Yin, Yuqiao Chen, Yuming Feng, Lian Feng, Qilin Yu
Summary: In this study, a synthetic bacterium was designed to remodel the rhizosphere microbiome and enhance phytoremediation. By changing the microbiome, the accumulation of pollutants in plants was increased, leading to improved plant growth.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Hong Wei Cao, Ya Ning Zhao, Xue Song Liu, Justice Kipkorir Rono, Zhi Min Yang
Summary: The study identified a novel rice gene OsHIPP16 that plays a crucial role in limiting Cd accumulation in rice crops and improving environmental quality.
ENVIRONMENTAL POLLUTION
(2022)