Constitutive and Induced Activities of Defense-Related Enzymes in Aphid-Resistant and Aphid-Susceptible Cultivars of Wheat

Han, Ying; Wang, Yu; Bi, J. L.; Yang, Xiaomeng; Huang, Yong; Zhao, Xin; Hu, Yuan; Cai, Qingnian

doi:10.1007/s10886-009-9589-5

Cited by 78 publications

(57 citation statements)

References 34 publications

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“…However, this phenomenon, in the case of interactions described here, requires further studies. The present data confirm the results of earlier studies, showing that changes in the rate of aromatic amino acid deamination affect the content of simple phenols, polyphenols, o-dihydroxyphenols and phenolic acids in plant tissues (Ju et al 1995;Howles et al 1996;Tovar et al 2002) and that aphid feeding modifies TAL and PAL activities (Ciepiela and Niraz 1993;Li et al 2008;Han et al 2009). PAL was also found to be activated in cucumber seedlings infested by B. tabaci and an increase of its activity was dependent on the duration of infestation .…”

Section: Discussionsupporting

confidence: 92%

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Accumulation of amino acids and phenolic compounds in biochemical plant responses to feeding of two different herbivorous arthropod pests

Golan

Sempruch

Górska-Drabik

et al. 2017

Arthropod-Plant Interactions

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The study aimed at comparing the changes in the content of free amino acids, phenolic compounds and the activity of PAL and TAL caused by two piercingsucking arthropods: the grape mealybug (Pseudococcus maritimus Ehrh.) and the two-spotted spider mite (Tetranychus urticae Koch) in the leaves of orchid and strawberry, respectively. The obtained results show that the amino acid content and the ratio of amino acids to phenolic compounds increased in both plant species infested by the mealybug and the mite. However, such response was weakly dependent on changes in activity of the analysed enzymes. The pest feeding affected accumulation of the phenolic compounds, since the induction of the PAL activity in mealybug-infested orchid leaves during the first 5 h of the experiment preceded the increase in phenolic compounds during the first week of insect feeding. Instead, the increased activity of TAL was accompanied by elevated levels of phenolic compounds in the leaves of strawberry infested by mites. Mechanisms of biochemical plant responses induced by infestation of the studied herbivorous arthropods are discussed.

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Section: Discussionsupporting

confidence: 92%

“…and in wheat infested by S. avenae; moreover, resistant cultivars (cvs.) were characterised by a significantly higher PAL activity than susceptible ones (Li et al 2008;Han et al 2009). Ciepiela and Niraz (1993) observed an increase of TAL activity in wheat leaves under S. avenae infestation.…”

Section: Introductionmentioning

confidence: 99%

Accumulation of amino acids and phenolic compounds in biochemical plant responses to feeding of two different herbivorous arthropod pests

Golan

Sempruch

Górska-Drabik

et al. 2017

Arthropod-Plant Interactions

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“…Experiments comparing varieties of wheat (Hordeum vulgare) that are resistant or susceptible to the cereal aphid (Sitobion avenae [F.]) demonstrate a higher constitutive expression of PPO in resistant varieties (Han et al 2009). However, induction of PPO occurs during both resistant and susceptible reactions (Han et al 2009).…”

Section: Jasmonate Resistant 1 (Jar1) and Jasmonic Acid Signalingmentioning

confidence: 99%

A gene expression analysis of syncytia laser microdissected from the roots of the Glycine max (soybean) genotype PI 548402 (Peking) undergoing a resistant reaction after infection by Heterodera glycines (soybean cyst nematode)

et al. 2009

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The syncytium is a nurse cell formed within the roots of Glycine max by the plant parasitic nematode Heterodera glycines. Its development and maintenance are essential for nematode survival. The syncytium appears to undergo two developmental phases during its maturation into a functional nurse cell. The first phase is a parasitism phase where the nematode establishes the molecular circuitry that during the second phase ensures a compatible interaction with the plant cell. The cytological features of syncytia undergoing susceptible or resistant reactions appear the same during the parasitism phase. Depending on the outcome of any defense response, the second phase is a period of syncytium maintenance (susceptible reaction) or failure (resistant reaction). In the analyses presented here, the localized gene expression occurring at the syncytium during the resistant reaction was studied. This was accomplished by isolating syncytial cells from Glycine max genotype Peking (PI 548402) by laser capture microdissection. Microarray analyses using the Affymetrix soybean GeneChip directly compared Peking syncytia undergoing a resistant reaction to those undergoing a susceptible reaction during the parasitism phase of the resistant reaction. Those analyses revealed lipoxygenase-9 and lipoxygenase-4 as the most highly induced genes in the resistant reaction. The analysis also identified induced levels of components of the phenylpropanoid pathway. These genes included phenylalanine ammonia lyase, chalcone isomerase, isoflavone reductase, cinnamoyl-CoA reductase and caffeic acid O-methyltransferase. The presence of induced levels of these genes implies the importance of jasmonic acid and phenylpropanoid signaling pathways locally at the site of the syncytium during the resistance phase of the resistant reaction. The analysis also identified highly induced levels of four S-adenosylmethionine synthetase genes, the EARLY-RESPONSIVE TO DEHYDRATION 2 gene and the 14-3-3 gene known as GENERAL REGULATORY FACTOR 2. Subsequent analyses studied microdissected syncytial cells at 3, 6 and 9 days post infection (dpi) during the course of the resistant reaction, resulting in the identification of signature gene expression profiles at each time point in a single G. max genotype, Peking.

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“…Meanwhile, significant changes in the activity of defence related enzymes such as phenylalanine ammonia-lyase (PAL) and polyphenoloxidase (PPO) involved in secondary metabolism have been well observed (Ye et al 2006;Han et al 2009). We have previously reported the different responses of CO 2 assimilation, chlorophyll-fluorescence quenching, expression of Calvin cycle genes and carbohydrate accumulation to light quality in Cucumis sativus ).…”

mentioning

confidence: 99%

Light quality affects incidence of powdery mildew, expression of defence-related genes and associated metabolism in cucumber plants

et al. 2010

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To determine whether light quality affects the incidence of disease, we exposed cucumber (Cucumis sativus L. cv. Jinyan No. 4) plants at the 4-leaf stage to white and other monochromatic lights and tested the effects on plant response to Sphaerotheca fuliginea, defence-related gene expression and metabolic changes. Exposure to red light resulted in higher levels of H 2 O 2 and salicylic acid (SA), and stronger expression of defence genes such as PR-1 than exposure to white or other monochromatic lights. In comparison, plants grown under purple and blue light had higher activities of phenylalanine ammonialyase (PAL) and polyphenoloxidase (PPO) and higher level of flavonoids than plants grown under other lights. Furthermore, plants grown under red light were more resistant whilst plants grown under other monochromatic lights were less resistant to Sphaerotheca fuliginea than plants grown under white light. These results suggest a role of red light in lightenhanced resistance, which correlates with enhanced SA-dependent signaling pathway.

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Constitutive and Induced Activities of Defense-Related Enzymes in Aphid-Resistant and Aphid-Susceptible Cultivars of Wheat

Cited by 78 publications

References 34 publications

Accumulation of amino acids and phenolic compounds in biochemical plant responses to feeding of two different herbivorous arthropod pests

Accumulation of amino acids and phenolic compounds in biochemical plant responses to feeding of two different herbivorous arthropod pests

A gene expression analysis of syncytia laser microdissected from the roots of the Glycine max (soybean) genotype PI 548402 (Peking) undergoing a resistant reaction after infection by Heterodera glycines (soybean cyst nematode)

Light quality affects incidence of powdery mildew, expression of defence-related genes and associated metabolism in cucumber plants

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