scholarly journals Occurrence of Bacterial Spot Disease of Tea Caused by Acidovorax valerianellae Gardan, Stead, Dauga and Gillis 2003 in Shizuoka Pref.

2018 ◽  
Vol 2018 (125) ◽  
pp. 25-32
Author(s):  
Masayuki Togawa ◽  
Mizue Tsuji ◽  
Yuichi Takikawa
Keyword(s):  
Bacterial Spot ◽  
Spot Disease ◽  
Bacterial Spot Disease

Erratum to “Reclassification of the Xanthomonads Associated with Bacterial Spot Disease of Tomato and Pepper”

2006 ◽  
Vol 29 (1) ◽  
pp. 85-86 ◽  
Author(s):  
Jeffrey B. Jones ◽  
George H. Lacy ◽  
Hacene Bouzar ◽  
Robert E. Stall ◽  
Norman W. Schaad
Keyword(s):  
Bacterial Spot ◽  
Spot Disease ◽  
Bacterial Spot Disease

PopW activates PAMP-triggered immunity in controlling tomato bacterial spot disease

2015 ◽  
Vol 463 (4) ◽  
pp. 746-750 ◽  
Author(s):  
Tian Wei ◽  
Luyao Wang ◽  
Xiaosi Zhou ◽  
Xiuyan Ren ◽  
Xiangqun Dai ◽  
...  
Keyword(s):  
Bacterial Spot ◽  
Spot Disease ◽  
Bacterial Spot Disease

Reclassification of the Xanthomonads Associated with Bacterial Spot Disease of Tomato and Pepper

2004 ◽  
Vol 27 (6) ◽  
pp. 755-762 ◽  
Author(s):  
Jeffrey B. Jones ◽  
George H. Lacy ◽  
Hacene Bouzar ◽  
Robert E. Stall ◽  
Norman W. Schaad
Keyword(s):  
Bacterial Spot ◽  
Spot Disease ◽  
Bacterial Spot Disease

scholarly journals Inheritance of bacterial spot disease in Capsicum annuum L.

2004 ◽  
Vol 4 (4) ◽  
pp. 490-494 ◽  
Author(s):  
E.M. Riva ◽  
R. Rodrigues ◽  
M.G. Pereira ◽  
C.P. Sudré ◽  
M. Karasawa
Keyword(s):  
Capsicum Annuum ◽  
Bacterial Spot ◽  
Spot Disease ◽  
Capsicum Annuum L ◽  
Bacterial Spot Disease

scholarly journals Attenuations of bacterial spot disease Xanthomonas euvesicatoria on tomato plants treated with biostimulants

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Aminthia Pombo Sudré da Silva ◽  
Fábio Lopes Olivares ◽  
Cláudia Pombo Sudré ◽  
Lázaro Eustáquio Pereira Peres ◽  
Natália Aguiar Canellas ◽  
...  
Keyword(s):  
Plant Growth ◽  
Organic Acids ◽  
Disease Progression ◽  
Humic Acids ◽  
Plant Growth Promoting Bacteria ◽  
Bacterial Spot ◽  
Spot Disease ◽  
Plant Growth Promoting ◽  
Bacterial Spot Disease ◽  
Growth Promoting

Abstract Background The bacterial-spot disease caused by different Xanthomonas species is one of the major tomato diseases that reduce crop production and quality. Pesticides indiscriminate usage has resulted in an increase in resistant bacterial strains as well as contamination of farmers, consumers and the environment. Plant growth-promoting bacteria and humic acids can act as elicitors of plant defence mechanism causing extensive transcriptional and metabolic reprogramming which, in turn, produce a range of plant chemical defences. The purpose of this study was to study how humic acids and plant growth-promoting bacteria, when applied to the substrate, affected the severity of bacterial spot symptoms in tomato leaves. Materials and methods One-month-old Micro-Tom tomato (Solanum lycopersicum L.) were transferred to 3 L pots filled with a sterile mixture of sand and vermiculite (2:1, v:v) and treated or not (control) with 250 mL of 4.5 mmol C. L−1 of humic acids, Herbaspirillum seropedicae (108 CFU. mL−1) and the combination of humic acids plus H. seropedicae. One day after substrate treatment, the leaves were inoculated (or not) with X. euvesicatoria (Xe). The area below the disease progression curve based on severity scores and the number of symptomatic leaflets was used to assess phytopathogen virulence. The concentration of oxalic, citric and succinic acids in leaf extracts were determined using HPLC analysis. Results Sole or combined H. seropedicae (BAC) and humic acids (HA) application promoted shoot and root growth related to control when plants were challenged with Xe pathogen. For plants inoculated with Xe, more significant plant-growth promotion results were obtained for HA + BAC treatment. The first visible symptoms were observed 16 days after inoculation with 2 × 104 CFU. g−1 of Xe cells in leaves of control plants. HA and BAC applied alone or combined reduced disease severity. Only plants treated with HA were able to reduce disease incidence (number of the leaflets with symptoms). Organic acids, such as oxalic, citric and succinic acids, rose in Xe-inoculated leaves. The reduced amount of organic acids in diseased leaves treated with HA + BAC may be linked to a decrease in disease progression. Conclusion Humic acids and H. seropedicae increased growth by modulating the content of organic acids in leaf tissue, attenuating the symptoms of the bacterial spot disease. Graphic abstract

Sign in / Sign up

Export Citation Format

Share Document