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1. 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:
lettuce,   etc   ; chlorophyll; horticulture; 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

2. A New Phytotoxic Sesquiterpene from Inula japonica

Author:
Yun-Yun Zhou; Chen-Zhong Jin; Ying-Qun Ma; Xue-Jiao Zhang; Xiu Liu; Shun-Li Xiao
Source:
Chemistry of natural compounds 2022 v.58 no.1 pp. 47-49
ISSN:
0009-3130
Subject:
lettuce,   etc   ; Inula britannica; chemical structure; phytotoxicity; sesquiterpenoids;     Show all 5 Subjects
Abstract:
... A new eudesmane sesquiterpene, 12-acetoxy-1β,2α-dihydroxyeudesma-4(15),11(13)-diene (1), was isolated from Inula japonica. The chemical structure of compound 1 was elucidated by advanced spectroscopy techniques, such as ¹H, ¹³C NMR, HMBC, HSQC, COSY, and NOESY. The compound 1 presented phytotoxic effect on the growth of lettuce at 250 ppm. ...
DOI:
10.1007/s10600-022-03594-0

3. Sustainability assessment of FLOCponics compared to stand-alone hydroponic and biofloc systems using emergy synthesis

Author:
Sara M Pinho; Luiz H. David; Fabiana Garcia; Maria Célia Portella; Karel J. Keesman
Source:
Ecological indicators 2022 v.141 pp. 109092
ISSN:
1470-160X
Subject:
lettuce,   etc   ; aquaculture; biofloc technology; emergy; hydroponics; sustainable agriculture;     Show all 6 Subjects
Abstract:
... FLOCponics is an intensive integrated agri-aquaculture system that combines biofloc-based aquaculture with hydroponics. Since research on FLOCponics is in its early stage of development, and many aspects of this system still need to be explored, the objective of this study was to assess and discuss the sustainability of a FLOCponics system and compare it to stand-alone biofloc and hydroponic cultu ...
DOI:
10.1016/j.ecolind.2022.109092

4. Drops join to make a stream: high‐throughput nanoscale cultivation to grasp the lettuce root microbiome

Author:
Antoine Persyn; André Mueller; Sofie Goormachtig
Source:
Environmental microbiology reports 2022 v.14 no.1 pp. 60-69
ISSN:
1758-2229
Subject:
lettuce,   etc   ; Lactuca sativa; automation; extinction; microbiome; species richness; streams;     Show all 7 Subjects
Abstract:
... Root endospheres house complex and diverse bacterial communities, of which many strains have not been cultivated yet by means of the currently available isolation techniques. The Prospector® (General Automation Lab Technologies, San Carlos, CA, USA), an automated and high‐throughput bacterial cultivation system, was applied to analyse the root endomicrobiome of lettuce (Lactuca sativa L.). By usin ...
DOI:
10.1111/1758-2229.13014

5. Genome-wide association mapping reveals genomic regions frequently associated with lettuce field resistance to downy mildew

Author:
Ivan Simko; Hui Peng; Jinita Sthapit Kandel; Rebecca Zhao
Source:
Theoretical and applied genetics 2022 v.135 no.6 pp. 2009-2024
ISSN:
0040-5752
Subject:
lettuce,   etc   ; disease resistance; downy mildew; genomics; marker-assisted selection;     Show all 5 Subjects
Abstract:
... KEY MESSAGE: GWAS identified 63 QTLs for resistance to downy mildew. Though QTLs were distributed across all chromosomes, the genomic regions frequently associated with resistance were located on chromosomes 4 and 5. Lettuce downy mildew is one of the most economically important diseases of cultivated lettuce worldwide. We have applied the genome-wide association mapping (GWAS) approach to detect ...
Handle:
10113/7802987
DOI:
10.1007/s00122-022-04090-3

6. Syringe filter-based DNA aptamer-enzyme-linked colorimetric assay of Salmonella on lettuce

Author:
John G. Bruno
Source:
Journal of microbiological methods 2022 v.193 pp. 106406
ISSN:
0167-7012
Subject:
lettuce,   etc   ; DNA; Salmonella Typhimurium; colorimetry; fluorometry; nucleotide aptamers; syringes;     Show all 7 Subjects
Abstract:
... A simpler visible colorimetric and less expensive syringe enzymatic filter-based assay (SEFA) utilizing proven anti-Salmonella DNA aptamers is described which is based on a similar previously published fluorometric version of SEFA with larger filter units. The colorimetric SEFA is applied to detection of Salmonella enterica on lettuce with detection limits of less than 1000 cfu per sample. The ass ...
DOI:
10.1016/j.mimet.2022.106406

7. Fluazinam and its mixtures induce diversified changes of crucial biochemical and antioxidant profile in leafy vegetable

Author:
Piotr Iwaniuk; Andrzej Borusiewicz; Bozena Lozowicka
Source:
Scientia horticulturae 2022 v.298 pp. 110988
ISSN:
0304-4238
Subject:
lettuce,   etc   ; carotenoids; disease control; dithianon; dodine; horticulture; plant biochemistry;     Show all 7 Subjects
Abstract:
... Fungicides applied singly are frequently used to ensure disease control in the cultivation of leafy vegetables. The behavior of fungicide mixtures and their impact on plant biochemical and antioxidant status was poorly investigated. The main goal of this study was to compare the impact of fluazinam, a separately applied fungicide, and its mixtures (dithianon+fluazinam, dodine+fluazinam) during dis ...
DOI:
10.1016/j.scienta.2022.110988

8. Quantitative phenotyping and evaluation for lettuce leaves of multiple semantic components

Author:
Jianjun Du; Bo Li; Xianju Lu; Xiaozeng Yang; Xinyu Guo; Chunjiang Zhao
Source:
Plant methods 2022 v.18 no.1 pp. 54
ISSN:
1746-4811
Subject:
lettuce,   etc   ; automation; color; geometry; petioles; phenotype; photosynthesis; quantitative analysis;     Show all 8 Subjects
Abstract:
... BACKGROUND: Classification and phenotype identification of lettuce leaves urgently require fine quantification of their multi-semantic traits. Different components of lettuce leaves undertake specific physiological functions and can be quantitatively described and interpreted using their observable properties. In particular, petiole and veins determine mechanical support and material transport per ...
DOI:
10.1186/s13007-022-00890-2

9. Effect of biosorptive removal of cadmium ions from hydroponic solution containing indigenous garlic peel and mercerized garlic peel on lettuce productivity

Author:
Mahmoud S. Abu-Shahba; Mahmoud M. Mansour; Heba I. Mohamed; Mahmoud R. Sofy
Source:
Scientia horticulturae 2022 v.293 pp. 110727
ISSN:
0304-4238
Subject:
lettuce,   etc   ; adsorption; cadmium; garlic; hydroponics; malondialdehyde; mercerization; oxidative stress; toxicity;     Show all 9 Subjects
Abstract:
... One of the most harmful trace elements is cadmium (Cd) because of its persistence and high mobility. As Cd-contamination of soils increases worldwide, techniques to reduce the lettuce plant's Cd accumulation are required. The adverse effects of Cd can be reduced or eliminated using indigenous garlic peel (IGP) and, to a greater extent, mercerized garlic peel (MGP). In addition, the adsorption capa ...
DOI:
10.1016/j.scienta.2021.110727

10. Effectiveness of washing in reducing lead concentrations of lettuce grown in urban garden soils

Author:
Sara Perl Egendorf; Emily Li; Elise He; Zhongqi Cheng; Henry M. Spliethoff; Hannah A. Shayler; Jonathan Russell‐Anelli; Thomas King; Murray B. McBride
Source:
Journal of environmental quality 2022 v.51 no.4 pp. 755-764
ISSN:
0047-2425
Subject:
lettuce,   etc   ; Lactuca sativa; environmental quality; gardens; lead; soil pollution; vinegars;     Show all 7 Subjects
Abstract:
... Urban gardeners contribute to sustainable cities and often take great care to limit exposure to soil contaminants like lead (Pb). Although best management practices (BMPs) like mulching to reduce soil splash can limit crop contamination, they may not eliminate all contamination for leafy greens, which trap soil particles. How effective is washing at removing Pb contamination from leafy greens when ...
DOI:
10.1002/jeq2.20357

11. Agent‐based simulation of cross‐contamination of Escherichia coli O157:H7 On lettuce during processing with temperature fluctuations during storage in a produce facility. Part 1: Model development

Author:
Tonderai Madamba; Rosana G. Moreira; Elena Castell‐Perez; Amarnath Banerjee; Dilma da Silva
Source:
Journal of food process engineering 2022 v.45 no.4 pp. e14002
ISSN:
0145-8876
Subject:
lettuce,   etc   ; Escherichia coli O157; cross contamination; food safety; models; temperature;     Show all 6 Subjects
Abstract:
... A food safety agent‐based model (FS‐ABS) with discrete time event simulation using NetLogo© was developed to predict the levels of cross‐contamination in a lettuce processing facility. Visualization of the whole processing line shows different lettuce pieces around each equipment's surface. The focus was set on Romaine lettuce processing and on the impact of cross‐contamination, free‐chlorine conc ...
DOI:
10.1111/jfpe.14002

12. Earthworms promote the transfer of 15N-urea to lettuce while limit appreciably increase 15N losing to environment

Author:
Liping Na; Chengxiao Hu; Yanbin Jiang; Ronggui Hu; Muhammad Shaaban; Aneela Younas; Yupeng Wu
Source:
Environmental research 2022 v.212 pp. 113423
ISSN:
0013-9351
Subject:
lettuce,   etc   ; earthworms; losses from soil; nitrogen; research; soil; urea; volatilization;     Show all 8 Subjects
Abstract:
... Earthworm activities not only increase nitrogen (N) uptake by crops, but also lead to N losing to environment. Thus, the present study examined the transformation of ¹⁵N-labeled urea with and without earthworms (Metaphire guillelmi) in a soil-lettuce system. We evaluated lettuce ¹⁵N uptake, ¹⁵N losses including N₂O emission, NH₃ volatilization and leaching, as well as ¹⁵N remaining in soil. Result ...
DOI:
10.1016/j.envres.2022.113423

13. Fate and mitigation of Salmonella contaminated in lettuce (Lactuca sativa) seeds grown in a hydroponic system

Author:
Yingyue Li; Ye Htut Zwe; Cliff An Ting Tham; Yue Zou; Wei Li; Dan Li
Source:
Journal of applied microbiology 2022 v.132 no.2 pp. 1449-1456
ISSN:
1364-5072
Subject:
lettuce,   etc   ; Lactuca sativa; Salmonella; cross contamination; food safety; hydroponics; lighting; microbiology;     Show all 8 Subjects
Abstract:
... AIMS: We investigated the fate of Salmonella in lettuce seeds grown in a hydroponic system and the potentials of applying photodynamic inactivation (PDI) to enhance microbial safety of hydroponic farming systems. METHODS AND RESULTS: Lettuce was grown from Salmonella‐contaminated seeds, and rose bengal‐mediated PDI was applied. Without intervention, Salmonella could persist in plants and hydroponi ...
DOI:
10.1111/jam.15295

14. Loading ferric lignin on polyethylene film and its influence on arsenic-polluted soil and growth of romaine lettuce plant

Author:
Xiaozhuan Zhang; Guohua Zhao; Xibao Shi; Bingbing Yuan; Kejiang Zhao; Zhenbang Tian; Zuohua Huang; Zhongjun Ma; Meng Li; Liang Zhao
Source:
Environmental science and pollution research 2022 v.29 no.33 pp. 50362-50375
ISSN:
0944-1344
Subject:
romaine lettuce,   etc   ; adsorption; arsenic; biomass; iron; lignin; pollution; polyethylene film; research;     Show all 9 Subjects
Abstract:
... This work developed a composite (Pe-FeLs) which loaded ferric lignin on polyethylene film (PE film) by chemical modification and physico-chemically characterized by Microscope, FESEM with elemental mapping analysis, and XRD. Microscope pictures showed that chemical modification did not destroy the appearance of PE film. The FESEM images of Pe-FeLs showed the well-distributed clusters could be clea ...
DOI:
10.1007/s11356-022-19490-7

15. Reduction of browning in minimally processed fresh-cut lettuce

Author:
P.S. Gurjar; S.R. Singh; A.K. Verma; S. Rajan
Source:
Indian journal of horticulture 2022 v.79 no.2 pp. 231-236
ISSN:
0974-0112
Subject:
lettuce,   etc   ; chlorophyll; freshness; horticulture; melatonin; peroxidase; phenol; shelf life; storage time;     Show all 9 Subjects
Abstract:
... The investigation was carried out to assess the effect of post-harvest dip treatment of melatonin (10, 100 and 1000 μmol L⁻¹) on shelf life and sensory qualities of minimally processed fresh cut lettuce, kept at 6±2ºC for 8 days. Melatonin treatment was found effective in maintaining freshness and sensory qualities of lettuce during storage. Browning was reduced by 45% with 44.10% higher visual qu ...
DOI:
10.5958/0974-0112.2022.00031.7

16. Examining phosphorus use efficiency across different lettuce (Lactuca sativa L.) accessions

Author:
Gustavo F. Kreutz; Jehangir H. Bhadha; Germán V. Sandoya
Source:
Euphytica 2022 v.218 no.3 pp. 28
ISSN:
0014-2336
Subject:
lettuce,   etc   ; Histosols; Lactuca sativa; cultivars; leaves; phosphorus; solar radiation; weeds; Florida;     Show all 9 Subjects
Abstract:
... Most agricultural soils worldwide have limited availability of phosphorus (P); thus, crops require supplemental application of P fertilizers. Due to the economic and environmental concerns derived from the use of P fertilizers, identifying and breeding P-efficient lettuce (Lactuca sativa L.) cultivars is imperative for the reduction of production costs and implementation of more sustainable practi ...
DOI:
10.1007/s10681-022-02973-6

17. Rapid Response Indicators for Predicting Changes in Soil Properties Due to Solarization or Biosolarization on an Intensive Horticultural Crop in Semiarid Regions

Author:
Antonio Sánchez-Navarro; Raimundo Jiménez-Ballesta; Aldara Girona-Ruiz; Iris Alarcón-Vera; María José Delgado-Iniesta
Source:
Land 2022 v.11 no.1 pp. -
ISSN:
2073-445X
Subject:
lettuce,   etc   ; electrical conductivity; horticultural crops; land; models; sustainable agriculture; total nitrogen; Spain;     Show all 8 Subjects
Abstract:
... Agriculture practices developed since the middle of the last century have led to the degradation of different resources and made it necessary to promote agricultural models that are less aggressive towards nature. Sustainable agricultural growth requires a more efficient use of land. An experimental model was designed with four treatments in the Campo de Cartagena area (SE Spain): biosolarization ...
DOI:
10.3390/land11010064

18. Uptake of endosulfan isomers from soils by leafy vegetable lettuce: A comparative study between model-predicted and field-experimented results

Author:
Jeong-In Hwang; Jang-Eok Kim
Source:
Science of the total environment 2022 v.844 pp. 157056
ISSN:
0048-9697
Subject:
lettuce,   etc   ; comparative study; environment; persistent organic pollutants; plant growth; sorption; toxicity; transpiration;     Show all 8 Subjects
Abstract:
... The organochlorine insecticide endosulfan has been classified as a persistent organic pollutant due to its long persistence and high toxicity, and banned in most countries. However, endosulfan residues are still detected in various environmental sites (even in non-agricultural areas) and have a likelihood to return to agricultural soils through various routes. In this study, time-dependent uptake ...
DOI:
10.1016/j.scitotenv.2022.157056

19. Chlorate and perchlorate residues in food products on the Danish market

Author:
Elena Hakme; Susan Strange Herrmann; Mette Erecius Poulsen
Source:
Food additives & contaminants 2022 v.39 no.3 pp. 551-559
ISSN:
1944-0057
Subject:
lettuce,   etc   ; chlorates; groundwater; infant formulas; markets; perchlorates; surveys; trade; water supply; Denmark;     Show all 10 Subjects
Abstract:
... Upon the European commission’s request in 2013, Denmark initiated a survey of the levels of chlorate and perchlorate in agriculture products from the Danish market over a period of 4 years from 2014 to 2017. The results of the survey were used to guide decision making with a view to setting maximum levels for intra-Union trade in 2013 and reviewing and updating the levels from 2020. The results of ...
DOI:
10.1080/19440049.2021.2017004

20. Effect of acetic acid treatments and storage on the quality of lettuce (Lactuca sativa L.) seeds

Author:
Agnieszka A. ROSIŃSKA
Source:
Notulae botanicae Horti Agrobotanici Cluj-Napoca 2022 v.50 no.2 pp. -
ISSN:
1842-4309
Subject:
lettuce,   etc   ; Alternaria alternata; Lactuca sativa; acetic acid; germination; seeds; storage quality; vigor;     Show all 8 Subjects
Abstract:
... Seedborne fungi negatively affect the quality of lettuce (Lactuca sativa L.) seeds and they are impact on their storability. Using the acetic acid can be an alternative to chemical treatment. Seeds were soaked for 30 minutes in a solution of acetic acid at concentrations of 0.25%, 0.5%, and 2%. Untreated seeds, seeds soaked for 30 minutes with distilled water and seeds treated with Dithane NeoTec ...
DOI:
10.15835/nbha50212631