Biosynthesis and metabolism of abscisic acid in tomato leaves infected with Botrytis cinerea

Kettner, Jens; D�rffling, Karl

doi:10.1007/bf00197324

Cited by 46 publications

(53 citation statements)

References 22 publications

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“…Some phytopathogenic organisms are known to produce ABA, including fungal pathogens such as Cercospora spp., Ceratocystis spp., Fusarium spp., Rhizoctonia spp., B. cinerea and M. grisea (Assante et al 1977;Dörffling et al 1984;Jiang et al 2010). Kettner and Dörffling (1995) showed that at least four processes can control ABA levels in tomato leaves infected with B. cinerea: (1) stimulation of fungal ABA biosynthesis by the host; (2) release of ABA or its precursor by the fungus; (3) stimulation of plant ABA biosynthesis by the fungus and (4) inhibition of ABA catabolism by the fungus. In addition, ABA was shown to accumulate in the hyphae and conidia of M. grisea and was also detected in culture filtrate indicative of ABA secretion (Jiang et al 2010).…”

Section: Aba-sa Antagonismmentioning

confidence: 99%

The roles of ABA in plant–pathogen interactions

2011

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Defence against abiotic and biotic stresses is crucial for the fitness and survival of plants under adverse or suboptimal growth conditions. The phytohormone abscisic acid (ABA) is not only important for mediating abiotic stress responses, but also plays a multifaceted and pivotal role in plant immunity. This review presents examples demonstrating the importance of crosstalk between ABA and the key biotic stress phytohormone salicylic acid in determining the outcome of plant--pathogen interactions. We then provide an overview of how ABA influences plant defence responses against various phytopathogens with particular emphasis on the Arabidopsis--Pseudomonas syringae model pathosystem. Lastly, we discuss future directions for studies of ABA in plant immunity with emphasis on, its role in the crosstalk between biotic and abiotic stress responses, the importance of distinguishing direct and indirect effects of ABA, as well as the prospect of utilizing the recently elucidated core ABA signaling network to gain further insights into the roles of ABA in plant immunity.

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Section: Aba-sa Antagonismmentioning

confidence: 99%

The roles of ABA in plant–pathogen interactions

2011

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“…The extraction and purification was done following the method of Kettner et al (1995). The extraction was done at 4°C till 72 h in dark with a subsequent change of solvent at each 24 h. The extracted sample was centrifuged at 10,000 rpm and the supernatant was reduced to the aqueous phase using a rotary thin film evaporator at 35°C.…”

Section: Relative Water Content Of Leavesmentioning

confidence: 99%

l-tryptophan-assisted PGPR-mediated induction of drought tolerance in maize (Zea maysL.)

Yasmin

Nosheen

Naz

et al. 2017

Journal of Plant Interactions

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Drought is an important abiotic stress that limits the plant growth and productivity. Present investigation was aimed that plant growth-promoting rhizobacteria (PGPR) isolated from moisturestressed area impart drought tolerance in plants and tryptophan may improve their efficiency. Pseudomonas sp. (1), Bacillus cereus and Bacillus pumilus (B. pumilus) were isolated from maize rhizosphere grown in irrigated fields, semi-arid region and arid region, respectively. Proteus sp. and Pseudomonas sp. (2) were isolated from rice rhizosphere grown in irrigated fields and raised bed. B. pumilus produced 5× more abscisic acid (ABA) in culture media than Pseudomonas sp. (1) by the addition of L-tryptophan. These inoculants also modulated the phytohormone content of maize leaves in a pot experiment. Higher ABA was produced by the application of B. pumilus and Pseudomonas sp. (2), while indole 3-acetic acid and gibberellic acid were found higher in Pseudomonas sp. (1) and Proteus sp. treated plants. Addition of L-tryptophan increased the concentration of all phytohormones in soil and leaves of maize. Maximum increase in relative water content, osmotic potential, protein content and photosynthetic pigments was recorded in B. pumilus treated maize plants. Under irrigated condition, response of Pseudomonas sp. coinoculated with B. pumilus from arid field superseded while under drought stress the effect of later predominated. Bacillus pumilus can be used in the formulation of biofertilizer to alleviate drought stress in arid and semi-arid regions. ARTICLE HISTORY

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“…Similarly, the involvement of ABA in plant-pathogen interactions is ambiguous. Increased endogenous levels of ABA were observed in response to infection by viruses, bacteria, and fungi (Steadman and Sequeira, 1970;Whenham et al, 1986;Kettner and Dorffling, 1995). The application of ABA induced callose deposition, resulting in resistance against necrotic fungi (Ton and Mauch-Mani, 2004;Mauch-Mani and Mauch, 2005).…”

Section: Introductionmentioning

confidence: 99%

Antagonistic Interaction between Systemic Acquired Resistance and the Abscisic Acid–Mediated Abiotic Stress Response in Arabidopsis

et al. 2008

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Systemic acquired resistance (SAR) is a potent innate immunity system in plants that is effective against a broad range of pathogens. SAR development in dicotyledonous plants, such as tobacco (Nicotiana tabacum) and Arabidopsis thaliana, is mediated by salicylic acid (SA). Here, using two types of SAR-inducing chemicals, 1,2-benzisothiazol-3(2H)-one1,1-dioxide and benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester, which act upstream and downstream of SA in the SAR signaling pathway, respectively, we show that treatment with abscisic acid (ABA) suppresses the induction of SAR in Arabidopsis. In an analysis using several mutants in combination with these chemicals, treatment with ABA suppressed SAR induction by inhibiting the pathway both upstream and downstream of SA, independently of the jasmonic acid/ethylene-mediated signaling pathway. Suppression of SAR induction by the NaCl-activated environmental stress response proved to be ABA dependent. Conversely, the activation of SAR suppressed the expression of ABA biosynthesis–related and ABA-responsive genes, in which the NPR1 protein or signaling downstream of NPR1 appears to contribute. Therefore, our data have revealed that antagonistic crosstalk occurs at multiple steps between the SA-mediated signaling of SAR induction and the ABA-mediated signaling of environmental stress responses.

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Biosynthesis and metabolism of abscisic acid in tomato leaves infected with Botrytis cinerea

Cited by 46 publications

References 22 publications

The roles of ABA in plant–pathogen interactions

The roles of ABA in plant–pathogen interactions

l-tryptophan-assisted PGPR-mediated induction of drought tolerance in maize (Zea maysL.)

Antagonistic Interaction between Systemic Acquired Resistance and the Abscisic Acid–Mediated Abiotic Stress Response in Arabidopsis

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