Jasmonic acid and abscisic acid in shoots, coleoptiles, and roots of wheat seedlings

1994 ◽  
Vol 13 (2) ◽  
pp. 59-62 ◽  
Author(s):  
Wilfried Dathe ◽  
Andrew D. Parry ◽  
James K. Heald ◽  
Ian M. Scott ◽  
Otto Miersch ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Jasmonic Acid ◽  
Wheat Seedlings

scholarly journals Differential Effect of Jasmonic Acid and Abscisic Acid on Cell Cycle Progression in Tobacco BY-2 Cells

2002 ◽  
Vol 128 (1) ◽  
pp. 201-211 ◽  
Author(s):  
Agnieszka Świa̧tek ◽  
Marc Lenjou ◽  
Dirk Van Bockstaele ◽  
Dirk Inzé ◽  
Harry Van Onckelen
Keyword(s):  
Cell Cycle ◽  
Abscisic Acid ◽  
Jasmonic Acid ◽  
Differential Effect ◽  
Cell Cycle Progression ◽  
Cycle Progression

scholarly journals Abscisic acid is essential for rewiring of jasmonic acid-dependent defenses during herbivory

2019 ◽  
Author(s):  
Irene A Vos ◽  
Adriaan Verhage ◽  
Lewis G Watt ◽  
Ido Vlaardingerbroek ◽  
Robert C Schuurink ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Jasmonic Acid ◽  
Plant Hormone ◽  
Pieris Rapae ◽  
Necrotrophic Pathogen ◽  
Plant Insect Interactions ◽  
Gcc Box ◽  
Insect Interactions ◽  
And Control

AbstractJasmonic acid (JA) is an important plant hormone in the regulation of defenses against chewing herbivores and necrotrophic pathogens. In Arabidopsis thaliana, the JA response pathway consists of two antagonistic branches that are regulated by MYC- and ERF-type transcription factors, respectively. The role of abscisic acid (ABA) and ethylene (ET) in the molecular regulation of the MYC/ERF antagonism during plant-insect interactions is still unclear. Here, we show that production of ABA induced in response to leaf-chewing Pieris rapae caterpillars is required for both the activation of the MYC-branch and the suppression of the ERF-branch during herbivory. Exogenous application of ABA suppressed ectopic ERF-mediated PDF1.2 expression in 35S::ORA59 plants. Moreover, the GCC-box promoter motif, which is required for JA/ET-induced activation of the ERF-branch genes ORA59 and PDF1.2, was targeted by ABA. Application of gaseous ET counteracted activation of the MYC-branch and repression of the ERF-branch by P. rapae, but infection with the ET-inducing necrotrophic pathogen Botrytis cinerea did not. Accordingly, P. rapae performed equally well on B. cinerea-infected and control plants, whereas activation of the MYC-branch resulted in reduced caterpillar performance. Together, these data indicate that upon feeding by P. rapae, ABA is essential for activating the MYC-branch and suppressing the ERF-branch of the JA pathway, which maximizes defense against caterpillars.

Induced eggplant resistance against Trialeurodes vaporariorum triggered by jasmonic acid, abscisic acid, and Nesidiocoris tenuis feeding

2019 ◽  
Vol 110 (2) ◽  
pp. 285-292
Author(s):  
Saeideh Esmaeily ◽  
Mohammad Amin Samih ◽  
Hamzeh Izadi
Keyword(s):  
Abscisic Acid ◽  
Jasmonic Acid ◽  
Oviposition Preference ◽  
Trialeurodes Vaporariorum ◽  
Day Length ◽  
Alternative Methods ◽  
Choice Situation ◽  
Greenhouse Whitefly ◽  
Nesidiocoris Tenuis ◽  
Induction Of Resistance

AbstractGreenhouse whitefly, Trialeurodes vaporariorum Westwood, is one of the major insect pests of agricultural crops such as eggplant. Due to various difficulties associated with synthetic pesticides, more environmentally friendly alternative methods are greatly appreciated for controlling pests. In the present study, the induction of resistance was investigated in eggplant using root and foliar application of jasmonic acid, abscisic acid, as well as Nesidiocoris tenuis (Reuter) either individually or in combination against T. vaporariorum. The experiments were carried out under laboratory conditions inside a growth chamber, which was set at 27 ± 2°C, 50 ± 5% relative humidity with a 16 h day length. Our results showed an increase in plant resistance due to the higher immature mortality rates, longer immature periods, lower longevity of adults, and fecundity. In free-choice situation, oviposition on root jasmonic acid (RJA) + N. tenuis and root abscisic acid (RABA) + N. tenuis was similar, but numbers of eggs deposited on these plants were lower than other treatments and control plants. The plant enzyme activity and phenolic content were significantly greater in RJA + N. tenuis and RABA + N. tenuis, intermediate in individual treatments, and the lowest in control plants. Correspondingly, T. vaporariorum longevity, number of eggs produced per female, oviposition preference, all were lowest when the insects fed on these treatments. These findings suggest that the induction of resistance in eggplants with the physiological changes in the host plant leads to a reduction in whitefly damage.

scholarly journals Investigation the effect of abscisic acid on drought stress introduction in wheat seedlings

2012 ◽  
Vol 41 (Special Issue) ◽  
pp. 273-280
Author(s):  
S.S. Moosavi ◽  
B. Yazdi Samadi ◽  
A. Zali ◽  
M. Ghannadha ◽  
Omidim ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Full Text ◽  
Wheat Seedlings

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