• 제목/요약/키워드: crop disease

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2014-2015년 국내 콩 들불병 발생 상황 (Incidence of Wildfire Disease on Soybean of Korea during 2014-2015)

  • 강인정;김승한;심형권;서민정;신동범;노재환;허성기
    • 식물병연구
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    • 제22권1호
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    • pp.38-43
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    • 2016
  • 들불병은 콩의 주요 세균병 중 하나로 국내 콩 주요 재배지에서 꾸준히 발생되고 있지만 지금까지 발생 정도에 대한 보고가 없었다. 국내 콩 주요 재배지에서 들불병 발병 정도를 2014년과 2015년 2년간 조사하였다. 2014년 전국 조사에서는 조사한 30지역 중 19지역(수원, 영월, 괴산, 단양, 태안, 공주, 부여, 김제, 순창, 고창, 무안, 장흥, 안동, 청도, 칠곡, 경주, 예천, 영천, 합천)에서 들불병 발생을 확인하였으며, 2015년 전국 조사에서는 조사한 28지역 중 9지역(수원, 영월, 평창, 인제, 괴산, 단양, 충주, 무안, 안동)에서 들불병 발생을 확인하였다. 재배되고 있는 품종, 지역, 기후 조건에 따라 들불병 발병 차이가 났다. 서리태는 2014년과 2015년 모두 감수성을 보였으며 강수량이 많았던 2014년에 들불병의 발생이 2배 이상 증가하였음을 관찰할 수 있었다. 본 실험 결과 우리나라는 전국적으로 들블병균이 잠재해 있으며 비슷한 온도에서는 강수량이 들불병의 발생에 절대적인 영향을 준다는 것을 알 수 있었다.

QTL Mapping of qBK1WD to Improve Bakanae Disease Resistance in Rice

  • Lee, Sais-Beul;Hur, Yeon-Jae;Kim, Tae-Heon;Kang, Ju-Won;Cho, Jun-Hyun;Lee, Ji-Yoon;Kwon, Yeongho;Jo, Sumin;Lee, Jong-Hee;Park, No-Bong;Song, You-Cheon;Ko, Jong-Min;Park, Dong-Soo
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2019년도 추계학술대회
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    • pp.27-27
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    • 2019
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Mapping of qBK4T Derived Bakanae Disease Resistance in Rice

  • Sais-Beul Lee;Hyunggon Mang;Nkulu Rolly Kabange;Ju-Won Kang;Ji-Yun Lee;Youngho Kwon;Gi-Un Seong;So-Myeong Lee;Dongjin Shin;Jong-Hee Lee;Ki-Won Oh;Dong-Soo Park
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2022년도 추계학술대회
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    • pp.260-260
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    • 2022
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A comprehensive review of the therapeutic effects of Hericium erinaceus in neurodegenerative disease

  • Kim, Young Ock;Lee, Sang Won;Kim, Jin Seong
    • 한국버섯학회지
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    • 제12권2호
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    • pp.77-81
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    • 2014
  • Mushrooms are considered not only as food but also for source of physiologically beneficial medicines. The culinary-medicinal mushrooms may important role in the prevention of age-associated neurological dysfunctions, including Alzheimer's and Parkinson's diseases. Hericium erinaceus (H. erinaceus), is edible mushrooms, is a parasitic fungus that grows hanging off of logs and trees and well established candidate for brain and nerve health. H. erinaceus contains high amounts of antioxidants, beta-glucan, polysaccharides and a potent catalyst for brain tissue regeneration and helps to improve memory and cognitive functions. Its fruiting bodies and the fungal mycelia exhibit various pharmacological activities, including the enhancement of the immune system, antitumor, hypoglycemic and anti-aging properties. H. erinaceus stimulates the synthesis of Nerve Growth Factor (NGF) which is the primary protein nutrient responsible for enhancing and repairing neurological disorders. Especially hericenones and erinacines isolated from its fruitin body stimulate NGF, synthesis. This fungus is also utilized to regulate blood levels of glucose, triglycerides and cholesterol. H. erinaceus can be considered as useful therapeutic agents in the management and/or treatment of neurodegeneration diseases. However, this review focuses on in vitro, in vivo and clinical trials for neurodegerative disease.

Overexpression of twin-arginine translocation (TAT) pathway conferred immunity to Xanthomonas oryzae v. oryzae in rice

  • Nino, Marjohn C.;Song, Jae-Young;Nogoy, Franz Marielle;Kang, Kwon-Kyoo;Cho, Yong-Gu
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
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    • pp.166-166
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    • 2017
  • OsTAT encodes a twin-arginine translocator (TAT) pathway signal protein. It contains a TRANS membrane domain and a chloroplast transit peptide. mRNA transcription profiling of OsTAT1 revealed that it is highly overexpressed in the leaves corroborating reports on its role in chloroplast. Moreover, its level of expression is more pronounced during earlier stages (germination, 3-leaf stage, and maximum tillering) of growth in rice. A lower disease progress curve of bacterial blight is evident in transgenic lines compared with the wild type, Dongjin indicating its involvement in immunity to Xoo. Expression pattern following infection of Xoo strain K2 depicts highest levels at 4 and 8 hour post-inoculation which implies crucial induction of resistance during early response. This study initially reports a new overview on the biological functions of plant's TAT pathway. Further molecular and genetic analyses are underway to provide detailed involvement of OsTAT in disease resistance.

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Curing period affect the occurrence of black dot, weight loss and sprouting of potato tubers during storage

  • Chang, Dong Chil;Jin, Yong Ik;Jee, Sam Nyu;Nam, Jung Hwan;Yoo, Dong Lim;Cheon, Chung Gi;Choi, Jong Keun;Kim, Su Jeong;Yu, Hong-Seob
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
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    • pp.242-242
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    • 2017
  • A potato cultivar, Haryeong, was released for table stock in 2005 and has been supplied to farmers since 2010. Black dot has been known as a disease causing tuber blemishes in the cultivar, which is primarily an issue in storage. To investigate the effect of curing periods on disease occurrence, four periods (1, 3, 6 and 9 weeks) of curing were applied on Haryeong tubers harvested from the highlands (800 m a.s.l) in September. Tubers were stored at $2-3^{\circ}C$ and 80-90% RH for 6-7 months and were visually checked for disease occurrence. Tuber infection was characterized by barely visible small black spots on tubers and dark sooty lesions in stolon end of tubers. Another symptoms were observed on the upper surface of tubers which showed irregular, small to large, and depressed areas of brown to blackish skin with necrotic lesions inside. Results showed decrease in black dot depending on the curing period that ranges 18-48, 3-35, 0-14 and 0-3% at 1, 3, 6 and 9 weeks curing, respectively. During the storage, however, percentage weight loss of tubers and percentage of tubers with sprouts increased slightly with increasing the curing period from 1-3 to 6-9 weeks.

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생육 초기에 투광량 증가가 인삼생육 및 지상부 병 발생에 미치는 영향 (Effects of Enhanced Light Transmission Rate During the Early Growth Stage on Plant Growth, Photosynthetic Ability and Disease Incidence of Above Ground in Panax ginseng)

  • 모황성;장인배;유진;박홍우;박기춘
    • 한국약용작물학회지
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    • 제23권4호
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    • pp.284-291
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    • 2015
  • This study was performed to investigate the effects of enhanced light transmission on plant growth, photosynthetic ability, and disease tolerance to leaf blight, anthracnose in ginseng (Panax ginseng C. A. Meyer, Araliacease family) during the early growth stage (April to June). The photosynthetic ratio, stomatal conductance, and stem diameter of plants grown under a shade net with 15% light transmission rate showed an increasing trend compared to the control plants (5% light transmission rate) although the growth of the aerial parts were not influenced significantly. Plant height, stem length, and leaf length of treated plants were not significantly different from those of the control plants. Root parameters, such as root length, diameter, and weight of treated plants increased significantly compared to the control. Yield performance ($187.4kg{\cdot}10a^{-1}$) of treated plants was 55.5% higher than that of the control ($150.4kg{\cdot}10a^{-1}$). Additionally, disease severity scores of treated plants were lower than those of the control plants, revealing higher survival rates. To retain high yield potential and enhance the level of disease tolerance in ginseng, we suggest the increase of light transmission rate during the early growth stage.

Detection of Blackleg Resistance Gene Rlm1 in Double-Low Rapeseed Accessions from Sichuan Province, by Kompetitive Allele-Specific PCR

  • Chai, Liang;Zhang, Jinfang;Dilantha Fernando, Wannakuwattewaduge Gerard;Li, Haojie;Huang, Xiaoqin;Cui, Cheng;Jiang, Jun;Zheng, Benchuan;Liu, Yong;Jiang, Liangcai
    • The Plant Pathology Journal
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    • 제37권2호
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    • pp.194-199
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    • 2021
  • Blackleg is a serious disease in Brassica plants, causing moderate to severe yield losses in rapeseed worldwide. Although China has not suffered from this disease yet (more aggressive Leptosphaeria maculans is not present yet), it is crucial to take provisions in breeding for disease resistance to have excellent blackleg-resistant cultivars already in the fields or in the breeding pipeline. The most efficient strategy for controlling this disease is breeding plants with identified resistance genes. We selected 135 rapeseed accessions in Sichuan, including 30 parental materials and 105 hybrids, and we determined their glucosinolate and erucic acid content and confirmed 17 double-low materials. A recently developed single-nucleotide polymorphism (SNP) marker, SNP_208, was used to genotype allelic Rlm1/rlm1 on chromosome A07, and 87 AvrLm1-resistant materials. Combined with the above-mentioned seed quality data, we identified 11 AvrLm1-resistant double-low rapeseed accessions, including nine parental materials and two hybrids. This study lays the foundation of specific R gene-oriented breeding, in the case that the aggressive Leptosphaeria maculans invades and establishes in China in the future and a robust and less labor consuming method to identify resistance in canola germplasm.

A new Atractylodes spp. hybrid cultivar 'Manchul' with high yielding and disease tolerance

  • Jeong, Jin-Tae;Chinreddy, Chinreddy;Lee, Yun-Ji;Ha, Bo-Keun;Kim, Mi-Ran;Lee, Sang-Hoon;Chang, Jae-Ki;Lee, Jeong-Hoon;Park, Chun-Geon
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
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    • pp.162-162
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    • 2017
  • Atractylodes japonica and Atractylodes macrocephala belongs to Atractylodes genus and theirs roots are used as 'Baek-chul'(White atractylodes rhizome) in Korea Pharmacopoeia. 'Baek-chul' widely used in traditional herbal remedies in Asia. Concurrently, the 'Baek-chul' demand enormously increased in the market due to the growing interest in favoring health benefits but it is depend on import from China. Thus we conducted breeding research to solve the problems associated with domestically cultivated 'Baek-chul' such as low productivity and low disease tolence. We crossed A. japonica (female parent) and A. macrocephala (male parent) in the greenhouse in September 2000. the next season 119 crossed line seeds were collected and germinated in the green house. Among them we selected the good lines in the same season. then conducted replicated yield trials (RYT) in 2014 to local adaptability test (LAT) in 2015-2016. The results showed that the 'AJM16' line has beneficial charactersitcs like, increased plant height, large rhizome diameter, narrow leaf width compared with a 'Sang-chul' (check cultivar) and varied flower color from A. japonica (female parent). The line 'AJM16' was also exhibited decreased anthracnose symptoms(Colletotrichum gloeosporides Penz.). Simultaneously the root yield of AJM16 was 2,409 kg per are, which was increased 130% higher yield compared to 'Sang-chul' (check cultivar) at three various regions from 2015 to 2016. Therefore, we named AJM16 as new cultivar 'Man-chul'. According the results, we have developed a new Atractylodes spp. hybrid cultivar 'Macn-chul' with high yielding and disease tolerance by National Institute of Horticulture and Herbal Science, RDA, in 2016.

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