Induction of disease resistance against Botrytis cinerea by heat shock treatment in melon (Cucumis melo L.)

Widiastuti, Ani; Yoshino, Mioko; Saito, Harufumi; Maejima, Keisuke; Zhou, Songying; Odani, Hiromitsu; Hasegawa, Morifumi; Nitta, Youji; Satô, Tatsuo

doi:10.1016/j.pmpp.2011.04.002

Cited by 28 publications

(11 citation statements)

References 35 publications

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“…Oleh karena itu berkembang metode pengendalian yang lebih aman yaitu mekanisme induksi ketahanan tanaman. Induksi ketahanan adalah metode aktivasi ketahanan tanaman terhadap patogen menggunakan metode elisitasi yaitu dengan perlakuan sebelum inokulasi menggunakan elisitor seperti mikro-organisme nonpatogenik (Sumardiyono et al, 2015), perlakuan fisik (Widiastuti et al, 2011;Widiastuti et al, 2013a;Widiastuti et al, 2013b) dan bahan kimia tertentu (Abdel-Monaim, 2011;Aleandri et al, 2010;Boubakri et al, 2012;Mandal et al, 2009;Okubara & Paulitz, 2005).…”

Section: Pendahuluanunclassified

Respons Awal Ketahanan Jagung terhadap Peronosclerospora maydis dan Induksi Bahan Kimia

Habibullah

Widiastuti

Sumardiyono

2018

JPTI

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Downy mildew is an important disease in maize cultivation in the world. Induced resistance is one of the methods used to control plant diseases. Reactive oxygen species (ROS) and lignification are plant defense responses. This study aims to determine the potential of chemicals as an inducer by observing ROS responses and lignification of mycelium. The materials used are benzoic acid, sodium benzoate, salicylic acid, thiamine, saccharin and aspirin with concentration 2 g L-1 of distilled water. The ROS reaction is indicated by all treatments induced and inoculated by pathogens. Lignification of mycelium occurred in the treatment of aspirin at 6 hours observation after inoculation and saccharin treatment on observation 12 hours after inoculation. Based on the observation of ROS and lignification of the mycelium, it is suspected that the material tested has the potential to be further tested as an inducer because it has the ability to activate an early marker of plant resistance in the form of ROS reaction and lignification of mycelium. IntisariBulai merupakan penyakit penting dalam budidaya jagung di dunia. Induksi ketahanan adalah salah satu metode yang digunakan untuk mengendalikan penyakit tanaman. Spesies oksigen reaktif (ROS) dan lignifikasi adalah respon pertahanan tanaman. Penelitian ini bertujuan untuk mengetahui potensi bahan kimia sebagai bahan penginduksi dengan mengamati respons ROS dan lignifikasi miselium. Bahan yang digunakan adalah asam benzoat, natrium benzoat, asam salisilat, tiamin, sakarin dan aspirin dengan konsentrasi 2 g akuades L-1. Reaksi ROS ditunjukkan oleh semua perlakuan yang diinduksi dan diinokulasi oleh patogen. Lignifikasi miselium terjadi pada perlakuan aspirin pada pengamatan 6 jam setelah inokulasi dan perlakuan sakarin pada pengamatan 12 jam setelah inokulasi. Berdasarkan pengamatan ROS dan lignifikasi miselium, diduga bahwa bahan yang diuji memiliki potensi untuk diuji lebih lanjut sebagai bahan penginduksi karena memiliki kemampuan untuk mengaktifkan penanda awal ketahanan tanaman dalam bentuk reaksi ROS dan lignifikasi miselium.

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Section: Pendahuluanunclassified

Respons Awal Ketahanan Jagung terhadap Peronosclerospora maydis dan Induksi Bahan Kimia

Habibullah

Widiastuti

Sumardiyono

2018

JPTI

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“…Las condiciones de alta humedad relativa, un bajo déficit de presión de vapor en la superficie de las plantas y temperaturas bajas, características de los ambientes de páramo en época húmeda, promueven la infección por Botrytis y predisponen la susceptibilidad del hospedero (Elad, 1996;Widiastuti, et al, 2011). La acción necrotrófica de este hongo le permite infectar a su hospedero a partir de heridas superficiales, donde contamina el agua extracelular con sus esporas.…”

Section: Discussionunclassified

Pérdida de pubescencia foliar y sus efectos fisiológicos en Espeletia paipana (Asterales, Asteraceae), en el departamento de Boyacá-Colombia

Buitrago

Vanegas

Ramos

2015

RBT

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Pérdida de pubescencia foliar y sus efectos fisiológicos enAbstract: Loss of leaf pubescence and its physiological effects on Espeletia paipana (Asterales, Asteraceae), in the Boyacá-Colombia department. Espeletia paipana is an endangered giant caulescent rosette endemic to Boyacá department. In order to establish whether a plant disease, characterized by the loss of leaf pubescence (PPF) and attributed to the pathogenic action of endophytic microorganisms, is the cause of the increasing mortality of population, the physiological performance of the species was evaluated with and without PPF. The incidence (% leaves affected in each of the 27 individuals in the current population) and severity (% leaf area affected on 135 leaves) of the PPF were monitored over a period of nine months, in three topographic zones of different heights. During four consecutive days in both dry and wet season, physiological parameters as chlorophyll content index (ICC), stomatal conductance (Gs) and leaf temperature (Tfol) were measured in healthy and affected leaves. The study was complemented with isolations and pathogenicity tests to identify the causal agent of the PPF. Overall, although the disease incidence in E. paipana was constant over time, the severity progressed surpassing 60 % of the leaf area. The increasing of severity in the upper side of leaves was attributed to the photo-oxidative effect of high radiation between 11:00 h and 14:00 h of the day. The reduction of functional leaf area because of the PPF, led to low Gs with serious implications for carbon fixation and thus limiting growth and biomass renewal. The effect of season in Tfol varied according to the topographic zone, while the ICC did not present a defined pattern with respect to the PPF; its low values could be associated with the production of other pigments. Finally, although it is not possible to ensure that Botrytis sp. is the causative of the loss of leaf pubescence, it is postulated as the most probably causal agent due to its high representativeness in the isolates and its infectious potential during the pathogenicity tests. In general, the reduction of healthy leaf biomass and decrease of physiological performance suggest that PPF affect negatively the survival of E. paipana, which means that the use of biological controllers could be a strategy to mitigate its effect on the population. Rev. Biol. Trop. 63 (3): 845-858. Epub 2015 September 01.

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“…Eleven lettuce plants and five cucumber seedlings were prepared for RNA extraction and first-strand cDNA synthesis, following methods described by Widiastuti et al (2011Widiastuti et al ( , 2013. Subsequently, qRT-PCR was performed to evaluate the expression of defense-related genes ( …”

Section: Gene Expression Analysis By Quantitative Real Time-polymerasmentioning

confidence: 99%

Organic hydroponics induces systemic resistance against the air-borne pathogen,Botrytis cinerea(gray mould)

Chinta

Eguchi

Widiastuti

et al. 2015

Journal of Plant Interactions

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Here, we propose that organic hydroponics trigger induced systemic resistance (ISR) in lettuce against air-borne Botrytis cinerea, which causes gray mold. We compared effects of organic and chemical hydroponics, assessed presence of ISR elicitors in the hydroponic nutrient solution, and investigated molecular mechanism of ISR. Organic hydroponics significantly reduced gray mold lesions in lettuce (cultivated hydroponically) and cucumber (cultivated in soil and foliar sprayed with nutrient solution). The 1-aminocyclopropane-1-carboxylic acid synthase gene in lettuce and lipoxygenase and ethylene receptor-related gene in cucumber showed heightened expression, suggesting that the jasmonic acid/ethylene (JA/ET)-signaling pathway was involved in ISR for both crops. Low salicylic acid β-glucoside levels confirmed role of the ISR signaling pathway. ISR in both lettuce and cucumbers indicated that elicitors in organic hydroponics were nonhost-specific and that the JA/ET pathway was activated without microbe-root interaction. Thus, organic hydroponics can be an effective method for both soil-borne and air-borne disease control.

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Induction of disease resistance against Botrytis cinerea by heat shock treatment in melon (Cucumis melo L.)

Cited by 28 publications

References 35 publications

Respons Awal Ketahanan Jagung terhadap Peronosclerospora maydis dan Induksi Bahan Kimia

Respons Awal Ketahanan Jagung terhadap Peronosclerospora maydis dan Induksi Bahan Kimia

Pérdida de pubescencia foliar y sus efectos fisiológicos en Espeletia paipana (Asterales, Asteraceae), en el departamento de Boyacá-Colombia

Organic hydroponics induces systemic resistance against the air-borne pathogen,Botrytis cinerea(gray mould)

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