Effect of soil drenching with humic acid, L-methionine and phosphoric acid on Fusarium wilt and induction of enzymes related to oxidative stress and defense in tomato plants

2021 ◽  
pp. 1-20
Author(s):  
Mansour M. El-Fawy ◽  
Bahaa E. Abdel-Fatah ◽  
Ayman S. Saeed ◽  
Heidi I. G. Abo-Elnaga ◽  
Abdel-Moneim M. Amein
Keyword(s):  
Oxidative Stress ◽  
Humic Acid ◽  
Phosphoric Acid ◽  
Fusarium Wilt ◽  
Tomato Plants ◽  
Induction Of Enzymes

β-1,3-glucan effect on the photosynthetic apparatus and oxidative stress parameters of tomato leaves under fusarium wilt

2020 ◽  
Vol 47 (11) ◽  
pp. 988
Author(s):  
Liudmila Kabashnikova ◽  
Larisa Abramchik ◽  
Irina Domanskaya ◽  
Galina Savchenko ◽  
Sviatoslav Shpileuski
Keyword(s):  
Oxidative Stress ◽  
Fusarium Wilt ◽  
Fungal Pathogen ◽  
Photosynthetic Apparatus ◽  
Carotenoid Content ◽  
Tomato Plants ◽  
Chl A ◽  
Oxidative Stress Parameters ◽  
And Oxidative Stress ◽  
Stress Parameters

The effect of β-1,3-glucan on the photosynthetic apparatus and oxidative stress parameters of tomato (Lycopersicon esculentum Mill., cv. Tamara) leaves under fusarium wilt caused artificially by the fungal pathogen Fusarium oxysporum sp. was studied in 2-month-old tomato plants. Infection of tomato plants with a pathogen causes activation of lipid peroxidation (LPO) processes in leaves and significant changes in the photosynthetic apparatus, which is reflected in a decrease in the chlorophyll (Chl) a and Chl a/Chl b ratio and carotenoid content, disturbances in the absorption and utilisation of light energy in PSII. Pretreatment of plants with β-1,3-glucan contributes to the stabilisation of LPO and normalises the level of a photosynthetic pigments and a course of photochemical processes in the chloroplasts of infected leaves, which indicates the protective activity of a drug.

Jasmonic acid-regulated putrescine biosynthesis attenuates cold-induced oxidative stress in tomato plants

2021 ◽  
Vol 288 ◽  
pp. 110373
Author(s):  
Fei Ding ◽  
Chuang Wang ◽  
Ning Xu ◽  
Meiling Wang ◽  
Shuoxin Zhang
Keyword(s):  
Oxidative Stress ◽  
Jasmonic Acid ◽  
Tomato Plants

scholarly journals Cymbopogon citratus essential oil bioactivity and the induction of enzymes related to the pathogenesis of Alternaria solani on tomato plants

2013 ◽  
Vol 31 (4) ◽  
pp. 11-17 ◽  
Author(s):  
Adriana Terumi Itako ◽  
João Batista Tolentino Júnior ◽  
Kátia Regina Freitas Schwan-Estrada
Keyword(s):  
Essential Oil ◽  
Alternaria Solani ◽  
Cymbopogon Citratus ◽  
Tomato Plants ◽  
Induction Of Enzymes

Effect of crezacin and humic acid on growth and physiological aspects of tomato plants (Lycopersicon esculentum)

2019 ◽  
Vol 21 (01) ◽  
pp. 61-66
Author(s):  
M.M. Abdelkader ◽  
M.Y. Puchkov ◽  
M.A. Lysakov ◽  
E.G. Loktionova ◽  
A.A. Suliman
Keyword(s):  
Humic Acid ◽  
Lycopersicon Esculentum ◽  
Tomato Plants

H2O2 and NO are involved in trehalose-regulated oxidative stress tolerance in cold-stressed tomato plants

2020 ◽  
Vol 171 ◽  
pp. 103961 ◽  
Author(s):  
Tao Liu ◽  
Xueling Ye ◽  
Meng Li ◽  
Jianming Li ◽  
Hongyan Qi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Stress Tolerance ◽  
Tomato Plants ◽  
Oxidative Stress Tolerance

Presymptomatic detection of Fusarium wilt of tomato by electrical resistance measurement as related to pectic enzyme production

1976 ◽  
Vol 54 (8) ◽  
pp. 752-757 ◽  
Author(s):  
Frank L. Caruso ◽  
Terry A. Tattar ◽  
Mark S. Mount ◽  
Margaret E. Malia
Keyword(s):  
Fusarium Wilt ◽  
Electrical Resistance ◽  
Wilt Disease ◽  
Symptom Development ◽  
In Vitro Production ◽  
Tomato Plants ◽  
Foliar Symptom ◽  
Vitro Production ◽  
Soil Level

Decreases in electrical resistance (ER) of tomato taproots were correlated with the progression of Fusarium wilt disease. Production of polygalacturonase (PG) from four isolates of Fusarium oxysporum f. sp. lycopersici, as determined from ammonium sulfate fractions, was correlated with the degree of virulence of each isolate. A drop in ER in tomato plant taproots at 6 cm below the soil level was noticed within 2 h after separate inoculation with all strains. These drops in ER preceded foliar symptom development by 20 h. Measurement of ER in the stems of inoculated tomato plants, however, was found to be no different from that of uninoculated plants. The rate of ER decrease was correlated with the in vitro production of PG by these isolates; the higher the PG activity, the greater the decrease in ER.

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