Preventive Effects of Fluoro-Substituted Benzothiadiazole Derivatives and Chitosan Oligosaccharide against the Rice Seedling Blight Induced by Fusarium oxysporum

Rice seedling blight, caused by Fusarium oxysporum, significantly affects global rice production levels. Fluoro-substituted benzothiadiazole derivatives (FBT) and chitosan oligosaccharide (COS) are elicitors that can enhance plant resistance to pathogen infection. However, there is a lack of information regarding FBT and COS used as elicitors in rice seedlings blight. Therefore, the aim of this study was to evaluate the effect of FBT and COS treatments on rice seedling blight and elucidate the molecular mechanisms of the two elicitors for inducing resistance using proteomic technique. Results indicated that FBT and COS significantly reduced the disease incidence and index, and relived the root growth inhibition caused by F. oxysporum (p < 0.05). Biochemical analyses demonstrated that these two elicitors effectively enhanced activities of defense enzymes. Moreover, the proteomic results of rice root tissues disclosed more differentially expressed proteins in diterpenoid biosynthesis pathway that were particularly stimulated by two elicitors compared to the other pathways studied, resulting in the accumulation of antimicrobial substance, momilactone. Findings of this study could provide sound theoretical basis for further applications of FBT and COS used as rice elicitors against seedling blight.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:8

Enthalten in:

Plants (Basel, Switzerland) - 8(2019), 12 vom: 24. Nov.

Sprache:

Englisch

Beteiligte Personen:

Ma, Bo [VerfasserIn]
Wang, Junhe [VerfasserIn]
Liu, Chuanzeng [VerfasserIn]
Hu, Jifang [VerfasserIn]
Tan, Kefei [VerfasserIn]
Zhao, Fuyang [VerfasserIn]
Yuan, Ming [VerfasserIn]
Zhang, Junhua [VerfasserIn]
Gai, Zhijia [VerfasserIn]

Links:

Volltext

Themen:

COS
FBT
Fusarium oxysporum
Journal Article
Momilactone
Rice

Anmerkungen:

Date Revised 28.09.2020

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/plants8120538

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM303736011