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1. Occurrence, distribution and risk assessment of antibiotics at various aquaculture stages in typical aquaculture areas surrounding the Yellow Sea

Author:
Jiachao Zhang; Xuanrui Zhang; Yang Zhou; Qianfan Han; Xiaoli Wang; Chao Song; Shuguang Wang; Shan Zhao
Source:
Journal of environmental sciences (China) 2023 v.126 pp. 621-632
ISSN:
1001-0742
Subject:
chlorophyll,   etc   ; coastal water; fluoroquinolones; mariculture; pollution; risk assessment; rivers; salinity; selection pressure; total nitrogen; China; Yellow Sea;     Show all 12 Subjects
Abstract:
... The pollution of antibiotics commonly existed throughout the entire aquaculture process, but the residues of antibiotics at different aquaculture stages have rarely been studied. This study investigated the occurrence, distribution and risk assessment of antibiotics at different aquaculture stages (the non-aquaculture stage, the early aquaculture stage, the middle aquaculture stage, and the late a ...
DOI:
10.1016/j.jes.2022.01.024

2. Preparation of floating BiOCl0.6I0.4/ZnO photocatalyst and its inactivation of Microcystis aeruginosa under visible light

Author:
Hong Liu; Liuliu Yang; Houwang Chen; Meng Chen; Peng Zhang; Ning Ding
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 362-375
ISSN:
1001-0742
Subject:
chlorophyll,   etc   ; Microcystis aeruginosa; active ingredients; calcium; cell membranes; human health; light; nanosheets; photocatalysis; photocatalysts; photosynthesis; phycobiliprotein; poisonous algae; pollution control; China;     Show all 15 Subjects
Abstract:
... Frequent occurrence of harmful algal blooms has already threatened aquatic life and human health. In the present study, floating BiOCl₀.₆I₀.₄/ZnO photocatalyst was synthesized in situ by water bath method, and and applied in inactivation of Microcystis aeruginosa under visible light. The composition, morphology, chemical states, optical properties of the photocatalyst were also characterized. The ...
DOI:
10.1016/j.jes.2021.12.044

3. Human impact on current environmental state in Chinese lakes

Author:
Qianhong Wang; Yun Li; Le Liu; Suzhen Cui; Xia Liu; Feizhou Chen; Erik Jeppessen
Source:
Journal of environmental sciences (China) 2023 v.126 pp. 297-307
ISSN:
1001-0742
Subject:
chlorophyll,   etc   ; anthropogenic activities; carbon; environmental factors; freshwater; humans; nitrogen; risk; spatial data; total nitrogen; total phosphorus; turbidity; water quality; water salinity; China;     Show all 15 Subjects
Abstract:
... Anthropogenic and natural disturbance to inland aquatic ecosystems displays a notable spatial difference, yet data to measure these differences are scarce. This study encompasses 217 lakes distributed over five lake regions of China and elucidates the environmental factors determining the spatial variability of the water quality and trophic status. A significant correlation between human modificat ...
DOI:
10.1016/j.jes.2022.05.031

4. Risk assessment and identification of factors influencing the historical concentrations of microcystin in Lake Taihu, China

Author:
Chen Cheng; Alan D. Steinman; Kaiye Zhang; Qi Lin; Qingju Xue; Xing Wang; Liqiang Xie
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 1-14
ISSN:
1001-0742
Subject:
chlorophyll,   etc   ; lakes; macrophytes; microcystins; nitrates; nitrogen; orthophosphates; phosphorus; phytoplankton; pollution; public health; risk; risk assessment; sediments; total nitrogen; total organic carbon; total phosphorus; water management; China;     Show all 19 Subjects
Abstract:
... Understanding the history of microcystins (MCs) pollution in large lakes can help inform future lake management. We collected sediment cores from Lake Taihu to: investigate the long-term record of MCs (MC-LR, MC-YR, and MC-RR), explore the main environmental drivers of MCs, and assess their public health and ecological risks. Results showed that MCs content in all cores increased over time. The co ...
DOI:
10.1016/j.jes.2022.03.043

5. Newly-developed three-band hyperspectral vegetation index for estimating leaf relative chlorophyll content of mangrove under different severities of pest and disease

Author:
Xiapeng Jiang; Jianing Zhen; Jing Miao; Demei Zhao; Zhen Shen; Jincheng Jiang; Changjun Gao; Guofeng Wu; Junjie Wang
Source:
Ecological indicators 2022 v.140 pp. 108978
ISSN:
1470-160X
Subject:
chlorophyll; leaf chlorophyll content,   etc   ; algorithms; disease severity; leaves; pests; regression analysis; vegetation index;     Show all 8 Subjects
Abstract:
... Hyperspectral imaging-derived vegetation indices (VIs) have rarely been developed to estimate leaf chlorophyll content of mangrove forests under pest and disease stress. Moreover, the optimal newly-developed hyperspectral VI is generally chosen through comparison of model accuracy alone with all possible VI combinations, which might render the conclusion one-sided. With SOC710 hyperspectral images ...
DOI:
10.1016/j.ecolind.2022.108978

6. A sentinel-2-based triangular vegetation index for chlorophyll content estimation

Author:
Binxiang Qian; Huichun Ye; Wenjiang Huang; Qiaoyun Xie; Yuhao Pan; Naichen Xing; Yu Ren; Anting Guo; Quanjun Jiao; Yubin Lan
Source:
Agricultural and forest meteorology 2022 v.322 pp. 109000
ISSN:
0168-1923
Subject:
chlorophyll; leaf chlorophyll content,   etc   ; absorption; forests; meteorology; phenology; reflectance; spectral analysis; vegetation index; winter wheat;     Show all 10 Subjects
Abstract:
... Accurate estimation of chlorophyll content is important for diagnosing the physiological and phenological status of vegetation. Establishing the relationship between vegetation indices (VIs) and leaf chlorophyll content using remote sensing is crucial for large-scale earth observation. However, existing VIs for estimating chlorophyll content generally suffer from the saturation effect or depend on ...
DOI:
10.1016/j.agrformet.2022.109000

7. Effect of gibberellin, nano-nutrition with titanium, zinc and iron on yield and some physiological and qualitative traits of white beans

Author:
Seyed Mostafa AZIMI; Hamid Reza EISVAND; Ahmad ISMAILI; Naser AKBARI
Source:
Notulae botanicae Horti Agrobotanici Cluj-Napoca 2022 v.50 no.1 pp. -
ISSN:
1842-4309
Subject:
chlorophyll; leaf chlorophyll content,   etc   ; gibberellins; grain protein; grain yield; iron; plant height; plant nutrition; titanium; zinc;     Show all 10 Subjects
Abstract:
... Plant nutrition has a vital role in crop production. This study was performed to investigate the effects of different application methods of some nutrients (nano Fe, Zn, and Ti), and gibberellin on yield, some morphophysiological and grain protein of white beans in 2018 as a factorial experiment in a randomized complete block design with four replications. Experimental factors included seed primin ...
DOI:
10.15835/nbha50112538

8. Effects of reduced chlorophyll content on photosystem functions and photosynthetic electron transport rate in rice leaves

Author:
Guojiao Wang; Faliang Zeng; Peng Song; Bei Sun; Qi Wang; Jiayu Wang
Source:
Journal of plant physiology 2022 v.272 pp. 153669
ISSN:
0176-1617
Subject:
chlorophyll; chlorophyll binding proteins,   etc   ; energy conversion; fluorescence; leaves; mutants; photosynthetic electron transport; photosystem II; reactive oxygen species; rice;     Show all 10 Subjects
Abstract:
... To elucidate the photosynthetic performance of rice mutant with low chlorophyll content, we assessed light energy conversion and photosynthetic electron transport at the flowering stage in rice of yellow-green leaf mutant (ygl) and a control with normal pigment content (IR36) under field conditions. The results showed that the reduced chlorophyll content and high expression levels of chlorophyll-b ...
DOI:
10.1016/j.jplph.2022.153669

9. Chlorophyll derivative intercalation into Nb2C MXene for lithium-ion energy storage

Author:
Xin Qi; WenXin Xu; JiaLi Tang; YuTing Xu; Yu Gao; Liang Li; Shin-ichi Sasaki; Hitoshi Tamiaki; XiaoFeng Wang
Source:
Journal of materials science 2022 v.57 no.22 pp. 9971-9979
ISSN:
0022-2461
Subject:
chlorophyll,   etc   ; anodes; delamination; dyes; energy; zinc;     Show all 6 Subjects
Abstract:
... Two-dimensional (2D) MXenes have attracted extensive attentions for their excellent energy storage ability. In the current study, our main goal is to report on the delamination of the Nb₂C MXene using a chlorophyll-a derivative (zinc methyl 3-devinyl-3-hydroxymethyl-pyropheophorbide a (Chl)) to produce Chl@Nb₂C composites as the anode materials in the lithium-ion batteries. The electrochemical beh ...
DOI:
10.1007/s10853-022-06929-y

10. Effects of nitrogen application rates on the spatio-temporal variation of leaf SPAD readings on the maize canopy

Author:
Y. Y. Li; B. Ming; P. P. Fan; Y. Liu; K. R. Wang; P. Hou; S. K. Li; R. Z. Xie
Source:
Journal of agricultural science 2022 v.160 no.1-2 pp. 32-44
ISSN:
1469-5146
Subject:
chlorophyll; leaf chlorophyll content,   etc   ; Zea mays; agricultural sciences; canopy; corn; cultivars; leaves; models; nitrogen; nutritional status; phenotype; plant nitrogen content;     Show all 13 Subjects
Abstract:
... The spatio-temporal variation of leaf chlorophyll content is an important crop phenotypic trait that is of great significance for evaluating crop productivity. This study used a soil-plant analysis development (SPAD) chlorophyll meter for non-destructive monitoring of leaf chlorophyll dynamics to characterize the patterns of spatio-temporal variation in the nutritional status of maize (Zea mays L. ...
DOI:
10.1017/S0021859621001052

11. Short communication: Pattern of chlorophylls content declined during partial submergence for rice varieties cultivated in North Sulawesi at the vegetative stage

Author:
SONG AI NIO; DANIEL PETER MANTILEN LUDONG; RATNA SIAHAAN
Source:
Biodiversitas 2022 v.23 no.5 pp. -
ISSN:
2085-4722
Subject:
chlorophyll; leaf chlorophyll content,   etc   ; cultivars; fertilizers; field capacity; greenhouses; leaves; nickel oxide; physiological response; rice; spectrophotometers; submergence; vegetative growth; Indonesia;     Show all 14 Subjects
Abstract:
... Nio SA, Ludong DPM, Siahaan R. 2022. Short communication: Pattern of chlorophylls content declined during partial submergence for rice varieties cultivated in North Sulawesi at the vegetative stage. Biodiversitas 23: 2451-2456. Submergence or flooding stress limits plant growth in various physiological, anatomical, and morphological aspects. This study examined leaf chlorophyll content as a physio ...
DOI:
10.13057/biodiv/d230524

12. Detecting low-oxygen stress of stored apples using chlorophyll fluorescence imaging and histogram division

Author:
Tim-Pascal Schlie; Werner Dierend; Dirk Köpcke; Thomas Rath
Source:
Postharvest biology and technology 2022 v.189 pp. 111901
ISSN:
0925-5214
Subject:
chlorophyll,   etc   ; fermentation; fluorescence; oxygen; photosynthesis; spatial variation;     Show all 6 Subjects
Abstract:
... Currently, only non-imaging chlorophyll fluorescence measurements are used to identify the Lower Oxygen Limit (LOL) in Dynamic Controlled Atmosphere - Chlorophyll Fluorescence (DCA-CF) storage. The disadvantage of non-imaging fluorescence is that no statement can be made about the spatial heterogeneity of the sample. In contrast, chlorophyll fluorescence imaging can detect spatial heterogeneity of ...
DOI:
10.1016/j.postharvbio.2022.111901

13. Effects of Light Intensity and Temperature on the Photosynthesis Characteristics and Yield of Lettuce

Author:
Jing Zhou; Pingping Li; Jizhang Wang
Source:
Horticulturae 2022 v.8 no.2 pp. -
ISSN:
2311-7524
Subject:
chlorophyll,   etc   ; horticulture; lettuce; light intensity; photosynthesis; temperature;     Show all 6 Subjects
Abstract:
... Lettuce is an important vegetable in horticulture, but information about the interactive effects of light and temperature on its photosynthetic characteristics was inadequate. This work investigated the effects of three temperatures (15/10 (T15), 23/18 (T23), and 30/23 °C (T30)) and five light treatments (100 (P100), 200 (P200), 350 (P350), 500 (P500), and 600 μmol·m⁻²·s⁻¹ (P600)) on the light–res ...
DOI:
10.3390/horticulturae8020178

14. Sedimentary Pigments as Production Characteristics of the Shallow Kostromskoe Widening of the Gorky Reservoir

Author:
N. A. Timofeeva; L. E. Sigareva; V. V. Zakonnov
Source:
Water resources 2022 v.49 no.3 pp. 475-482
ISSN:
0097-8078
Subject:
chlorophyll,   etc   ; basins; biotopes; macrophytes; organic matter; sediments;     Show all 6 Subjects
Abstract:
... First data on the concentrations of plant pigments in the top layer of bottom sediments are given for a large, shallow, moderately overgrown by macrophytes (21.5%) the Kostromskoe widening of the Gorky Reservoir. The data were collected from 2009 to 2020. The concentration of chlorophyll a degradation products, i.e., pheopigments, was found to be high (91 ± 3%). The spatial distribution of pigment ...
DOI:
10.1134/S0097807822030186

15. Biological dipole mode indices: New parameters to characterize the physical and biological processes of the Indian Ocean Dipole event

Author:
Wei Shi; Menghua Wang
Source:
Progress in oceanography 2022 v.206 pp. 102847
ISSN:
0079-6611
Subject:
chlorophyll,   etc   ; climate; color; oceanography; satellites; Indian Ocean;     Show all 6 Subjects
Abstract:
... The Indian Ocean Dipole (IOD) is a basin-wide ocean–atmosphere phenomenon that has profound impacts on the global climate, land, and ocean. The Dipole Mode Index (DMI), which is defined as the difference of the sea surface temperature (SST) anomaly in the east IOD zone and the west IOD zone has long been used to characterize and quantify the strength of IOD events. In this study, we propose biolog ...
DOI:
10.1016/j.pocean.2022.102847

16. Difluoroboron complexes of peripheral β-diketonates in cyclopheophorbides: Their syntheses and optical properties

Author:
Haruki Ishikawa; Ayaka Demise; Yuichi Kitagawa; Yoshinao Shinozaki; Yusuke Kinoshita; Hitoshi Tamiaki
Source:
Tetrahedron 2022 v.104 pp. 132596
ISSN:
0040-4020
Subject:
chlorophyll,   etc   ; absorption; boron; chlorins; condensation reactions; moieties;     Show all 6 Subjects
Abstract:
... Cyclopheophorbide-a prepared from intramolecular mixed Claisen condensation of methyl pyropheophorbide-a (one of the chlorophyll-a derivatives) was complexed with a difluoroboron species at the β-diketonate moiety on the exo-five-membered ring fusing the core cyclic tetrapyrrole π-skeleton. Its 3-substituted chlorin analogs and the related bacteriochlorin were also synthesized by difluoroboronatio ...
DOI:
10.1016/j.tet.2021.132596

17. Estimating chlorophyll-a concentrations in tropical reservoirs from band-ratio machine learning models

Author:
Wachidatin Nisaul Chusnah; Hone-Jay Chu
Source:
Remote sensing applications 2022 v.25 pp. 100678
ISSN:
2352-9385
Subject:
chlorophyll,   etc   ; algorithms; inland waters; models; reflectance; variance;     Show all 6 Subjects
Abstract:
... Remote sensing technology has been a popular tool with high potential to measure chlorophyll-a concentration in inland waters. This study proposed the band ratio algorithm to estimate the chlorophyll-a concentration in inland water using a machine learning approach. The blue-green, NIR-red band ratios, and the three-band models were sensitive to chlorophyll-a concentration in various water bodies. ...
DOI:
10.1016/j.rsase.2021.100678

18. Water Multi-Parameter Sampling Design Method Based on Adaptive Sample Points Fusion in Weighted Space

Author:
Mingjian Zhai; Zui Tao; Xiang Zhou; Tingting Lv; Jin Wang; Ruoxi Li
Source:
Remote Sensing 2022 v.14 no.12 pp. -
ISSN:
2072-4292
Subject:
chlorophyll,   etc   ; data collection; turbidity; uncertainty; water quality;     Show all 5 Subjects
Abstract:
... The spatial representativeness of the in-situ data is an important prerequisite for ensuring the reliability and accuracy of remote sensing product retrieval and verification. Limited by the collection cost and time window, it is essential to simultaneously collect multiple water parameter data in water tests. In the shipboard measurements, sampling design faces problems, such as heterogeneity of ...
DOI:
10.3390/rs14122780

19. Impacts of different hydrological conditions on phytoplankton communities in floodplain lakes of a regulated river (Lower Vistula, Poland)

Author:
Ewa Anna Dembowska
Source:
Hydrobiologia 2022 v.849 no.11 pp. 2549-2567
ISSN:
0018-8158
Subject:
chlorophyll,   etc   ; biomass; floodplains; macrophytes; phytoplankton; rivers; Poland;     Show all 7 Subjects
Abstract:
... In the years 2007–2015, phytoplankton of six floodplain lakes of the Lower Vistula were studied. During this period, river levels were recorded ranging from normal to both extremely high and extremely low. The research attempted to answer two questions: (i) Do the distributions of phytoplankton communities differ between different types of floodplain lakes? (ii) How are the phytoplankton in floodp ...
DOI:
10.1007/s10750-022-04870-4

20. Non-destructive and contactless estimation of chlorophyll and ammonia contents in packaged fresh-cut rocket leaves by a Computer Vision System

Author:
Michela Palumbo; Bernardo Pace; Maria Cefola; Francesco Fabiano Montesano; Giancarlo Colelli; Giovanni Attolico
Source:
Postharvest biology and technology 2022 v.189 pp. 111910
ISSN:
0925-5214
Subject:
chlorophyll,   etc   ; ammonia; computer vision; soil; supply chain;     Show all 5 Subjects
Abstract:
... Computer Vision Systems (CVS) offer a non-destructive and contactless tool to assign visual quality level to fruit and vegetables and to estimate some of their internal characteristics. The innovative CVS described in this paper exploits the combination of image processing techniques and machine learning models (Random Forests) to assess the visual quality and predict the internal traits on unpack ...
DOI:
10.1016/j.postharvbio.2022.111910