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Che Z, Liu Y, Chen L, Xing P, Li X, Huang X, Liu S, Chen G, Lin X, Tian Y. Synthesis of hinokitiol sulfonate derivatives and their anti-oomycete and nematicidal activities. Chem Biodivers 2022; 19:e202200580. [PMID: 35975883 DOI: 10.1002/cbdv.202200580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/17/2022] [Indexed: 11/12/2022]
Abstract
In order to explore novel natural product-based anti-oomycete and nematicidal agents, sixteen unreported 2-sulfonyloxyhinokitiol derivatives were prepared using the principle of active splicing, and structurally confirmed by proton nuclear magnetic resonance (1H NMR), carbon-13 nuclear magnetic resonance (13C NMR), high-resolution mass spectrometry (HRMS), and melting point. Moreover, we evaluated the title compounds as anti-oomycete and nematicidal agents against two serious agricultural pests of Phytophthora capsici and Meloidogyne incongnita. Among the sixteen hinokitiol esters tested: (1) Compounds 3a and 3m exhibited the most potent anti-oomycete activity compared to zoxamide against P. capsici, and the median effective concentration (EC50) values of 3a, 3m, and zoxamide were 18.64, 21.11, and 23.15 mg/L, respectively; Further studies showed that the existence of seven membered ring and carbonyl group was the necessary condition for the high anti-oomycete activity of hinokitiol. (2) Compounds 3n and 3p exhibited more promising nematicidal activity than hinokitiol, and the median lethal concentration (LC50) values of 3n, 3p and 1 against M. incongnita were 0.2111, 0.2079, and 0.3933 mg/L, respectively. This result will pave the way for further modification of hinokitiol to develop potential new fungicides and nematicides.
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Affiliation(s)
- Zhiping Che
- Henan University of Science and Technology, Plant Protection, No 263 kaiyuandadao, 471023, Luoyang, CHINA
| | - Yibo Liu
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, 471023, Luoyang, CHINA
| | - Luyao Chen
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, Luoyang, CHINA
| | - Puhou Xing
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, Luoyang, CHINA
| | - Xiangdong Li
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, Luoyang, CHINA
| | - Xiaobo Huang
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, Luoyang, CHINA
| | - Shengming Liu
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, Luoyang, CHINA
| | - Genqiang Chen
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, Luoyang, CHINA
| | - Xiaomin Lin
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, Luoyang, CHINA
| | - Yuee Tian
- Henan University of Science and Technology, College of Horticultrue and Plant Protection, Luoyang 471023, Henan Province, PR China, Luoyang, CHINA
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da Silva MB, Davis RF, Nichols RL, Kumar P, Chee PW. The effect of two QTLs for resistance to Meloidogyne incognita in cotton on nematode egression from roots. J Nematol 2021; 52:e2020-122. [PMID: 33829162 PMCID: PMC8015277 DOI: 10.21307/jofnem-2020-122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Indexed: 11/11/2022] Open
Abstract
Cotton is widely grown in the southern US and Meloidogyne incognita is its most significant pathogen. The germplasm line M-120 RNR is highly resistant to M. incognita due to two resistance QTLs (quantitative trait loci), qMi-C11 and qMi-C14. Both QTLs reduce total egg production, but the QTLs affect M. incognita development at different life stages. The QTLs do not appear to affect initial penetration of M. incognita but genotypes containing qMi-C11 had fewer nematodes in the roots 8 days after inoculation than near isolines without qMi-C11, which may indicate M. incognita egression from roots. Three greenhouse trials were conducted using cotton isolines to determine whether qMi-C11 and qMi-C14 affect egression of M. incognita juveniles from roots. On each of the five sampling dates (4, 6, 8, 10, and 12 DAI), nematodes that egressed from roots were counted and roots were stained to count nematodes that remained in the roots. The effect of resistance QTLs on M. incognita egression from the roots differed among the trials. Nematode egression was consistently numerically greater, but inconsistently statistically different, from plants with both QTLs than from plants with neither QTL. Plants with only one QTL generally did not differ from plants with both QTLs, and the effects of qMi-C11 and qMi-C14 did not differ in any consistent way. In a separate experiment, plants with neither QTL had more eggs per egg mass than did plants with both QTLs, whereas plants with only one QTL had an intermediate number. Root gall size was measured in two trials and no consistent differences in gall size were observed. We conclude that (1) qMi-C11 and qMi-C14 do not stimulate nematode egression from cotton roots, (2) both qMi-C11 and qMi-C14 reduce M. incognita eggs/egg mass, and (3) neither qMi-C11 nor qMi-C14 affect gall size.
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Affiliation(s)
- Mychele B da Silva
- Formerly University of Georgia, Department of Plant Pathology, Tifton, GA 31793, currently Germains Seed Technology, Gilroy, CA 95020
| | - Richard F Davis
- USDA-ARS Crop Protection and Management Research Unit, Tifton, GA 31793
| | | | - Pawan Kumar
- USDA-ARS Crop Improvement and Protection Research Unit, Salinas, CA 93905
| | - Peng W Chee
- University of Georgia, Department of Crop and Soil Sciences and Institute of Plant Breeding, Genetics, and Genomics, Tifton, GA 31793
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Chen GQ, Xia YF, Yang JM, Che ZP, Sun D, Li S, Tian YE, Liu SM, Jiang J, Lin XM. Controlled synthesis of N, N-dimethylarylsulfonamide derivatives as nematicidal agents. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2020; 22:1197-1206. [PMID: 31773971 DOI: 10.1080/10286020.2019.1694513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 11/13/2019] [Indexed: 06/10/2023]
Abstract
Gramine can be intelligently and efficiently supplied with N, N-dimethylamino group and then reacted with the corresponding sulfonyl chlorides to synthesize N, N-dimethylarylsulfonamides. We herein designed and controlled synthesis of N, N-dimethylarylsulfonamide derivatives, and first reported the results of the nematicidal activity of 15 title compounds 3a-o against Meloidogyne incongnita in vitro, respectively. Among all of the title derivatives, compounds 3a, 3c, 3k, and 3o exhibited potent nematicidal activity with median lethal concentration (LC50) values ranging from 0.22 to 0.26 mg/L. Most noteworthy, N, N-dimethyl-4-methoxyphenylsulfonamide (3c) and N, N-dimethyl-8-quinolinesulfonamide (3o) showed the best promising and pronounced nematicidal activity, with LC50 values of 0.2381 and 0.2259 mg/L, respectively.
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Affiliation(s)
- Gen-Qiang Chen
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Yan-Fei Xia
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Jin-Ming Yang
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Zhi-Ping Che
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Di Sun
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Shen Li
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Yue-E Tian
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Sheng-Ming Liu
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Jia Jiang
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Xiao-Min Lin
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
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Wubben MJ, Gaudin AG, McCarty JC, Jenkins JN. Analysis of Cotton Chromosome 11 and 14 Root-Knot Nematode Resistance Quantitative Trait Loci Effects on Root-Knot Nematode Postinfection Development, Egg Mass Formation, and Fecundity. PHYTOPATHOLOGY 2020; 110:927-932. [PMID: 31961253 DOI: 10.1094/phyto-09-19-0370-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Cotton (Gossypium hirsutum) resistance to root-knot nematode (RKN) (Meloidogyne incognita) is controlled by quantitative trait loci (QTLs) on chromosomes 11 (CHR11) and 14 (CHR14). The individual contributions of these QTLs to resistance are not completely understood. We developed near isogenic lines susceptible at both loci (null), having CHR11 or CHR14 alone, and having both QTLs (CHR11/CHR14). RKN reproduction, postinfection development, egg mass formation, and adult female fecundity were evaluated. Total RKN reproduction was reduced more in CHR14 versus CHR11 but not as greatly as in CHR11/CHR14. Second-stage juvenile (J2) development to the J3 and J4 (J3+J4) life stages was delayed in CHR11, whereas the J2 transition to J3+J4 in CHR14 followed a similar track as in null plants. Development of J3+J4 nematodes to adult females was inhibited in CHR14 at 21 days after inoculation (DAI). Adult female numbers were decreased in CHR11 and CHR14 at 21 and 28 DAI, with CHR11/CHR14 showing an even greater reduction by 28 DAI. The number of egg masses per gram of root at 21, 28, and 35 DAI formed on CHR11 and CHR14 followed a similar track as numbers of adult females. RKN adult female fecundity (eggs/egg mass) was reduced for CHR11 and CHR14 compared with the null at 21 DAI; however, CHR11 eggs/egg mass was only slightly reduced versus the null by 28 DAI. In contrast, CHR14 eggs/egg mass was like CHR11/CHR14, showing a 4-fold decrease compared with CHR11 and the null.
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Affiliation(s)
- Martin J Wubben
- Genetics and Sustainable Agriculture Research Unit, U.S. Department of Agriculture Agricultural Research Service, Mississippi State, MS 39762
| | - Amanda G Gaudin
- Genetics and Sustainable Agriculture Research Unit, U.S. Department of Agriculture Agricultural Research Service, Mississippi State, MS 39762
| | - Jack C McCarty
- Genetics and Sustainable Agriculture Research Unit, U.S. Department of Agriculture Agricultural Research Service, Mississippi State, MS 39762
| | - Johnie N Jenkins
- Genetics and Sustainable Agriculture Research Unit, U.S. Department of Agriculture Agricultural Research Service, Mississippi State, MS 39762
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Wheeler TA, Siders K, Monclova-Santana C, Dever JK. The relationship between commercial cotton cultivars with varying Meloidogyne incognita resistance genes and yield. J Nematol 2020; 52:1-8. [PMID: 32726068 PMCID: PMC8015274 DOI: 10.21307/jofnem-2020-064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Indexed: 11/11/2022] Open
Abstract
Small plot cotton cultivar trials (12 trials) were conducted from 2016 to 2019 in fields infested with Meloidogyne incognita. Entries in these trials included commercial cultivars with partial and high resistance to M. incognita, as well as cultivars with no known resistance. Different resistant groups were created based on different cotton seed companies and their descriptions of the M. incognita resistant cultivars. Groups were none (susceptible); partial resistance found in Stoneville or Fibermax cultivars (PR-FM/ST); partial resistance found in PhytoGen cultivars (PR-PHY); resistance (unknown gene(s)) in Deltapine cultivars (NR-DP); and highly resistant cultivars homozygous for RK1 and RK2 resistant genes in PhytoGen cultivars (HR-PHY). The highest lint yields using a mixed model analysis were found in the PR-FM/ST (1,396 kg lint/ha), HR-PHY (1,327 kg lint/ha), and PR-PHY (1,314 kg lint/ha) groups. Yield for NR-DP (1,234 kg lint/ha) was not different (p > 0.05) than yield for susceptible cultivars (1,243 kg lint/ha). If the older resistant cultivars from Deltapine and PhytoGen (those with only Roundup Ready® herbicide technology) were removed from the analysis, then HR-PHY yields increased by 133 kg of lint/ha to 1,460 kg lint/ha and NR-DP yields remained approximately unchanged (1,227 kg lint/ha). Newer HR-PHY had much improved yield over the first HR-PHY cultivars. Newer HR-PHY averaged 17% higher yield than the susceptible group. LOG10 (M. incognita eggs/500 cm3 soil + 1) were highest for the susceptible cultivars (3.2), followed by PR-FM/ST (2.6), NR-DP (2.4), PR-PHY (2.1), and lowest with HR-PHY (1.4). The newer HR-PHY cultivars (those with ENLIST® herbicide technology) combine excellent yields (17% higher than susceptible cultivars) with high (96%) suppression of M. incognita. Small plot cotton cultivar trials (12 trials) were conducted from 2016 to 2019 in fields infested with Meloidogyne incognita. Entries in these trials included commercial cultivars with partial and high resistance to M. incognita, as well as cultivars with no known resistance. Different resistant groups were created based on different cotton seed companies and their descriptions of the M. incognita resistant cultivars. Groups were none (susceptible); partial resistance found in Stoneville or Fibermax cultivars (PR-FM/ST); partial resistance found in PhytoGen cultivars (PR-PHY); resistance (unknown gene(s)) in Deltapine cultivars (NR-DP); and highly resistant cultivars homozygous for RK1 and RK2 resistant genes in PhytoGen cultivars (HR-PHY). The highest lint yields using a mixed model analysis were found in the PR-FM/ST (1,396 kg lint/ha), HR-PHY (1,327 kg lint/ha), and PR-PHY (1,314 kg lint/ha) groups. Yield for NR-DP (1,234 kg lint/ha) was not different (p > 0.05) than yield for susceptible cultivars (1,243 kg lint/ha). If the older resistant cultivars from Deltapine and PhytoGen (those with only Roundup Ready® herbicide technology) were removed from the analysis, then HR-PHY yields increased by 133 kg of lint/ha to 1,460 kg lint/ha and NR-DP yields remained approximately unchanged (1,227 kg lint/ha). Newer HR-PHY had much improved yield over the first HR-PHY cultivars. Newer HR-PHY averaged 17% higher yield than the susceptible group. LOG10 (M. incognita eggs/500 cm3 soil + 1) were highest for the susceptible cultivars (3.2), followed by PR-FM/ST (2.6), NR-DP (2.4), PR-PHY (2.1), and lowest with HR-PHY (1.4). The newer HR-PHY cultivars (those with ENLIST® herbicide technology) combine excellent yields (17% higher than susceptible cultivars) with high (96%) suppression of M. incognita.
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Affiliation(s)
| | - Kerry Siders
- Texas A&M AgriLife Extension Service, Levelland, TX
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