干旱区生态环境知识资源中心(Arid): Alternative Control of Tomato Wilt Using the Aqueous Extract of Calotropis procera

Arid

DOI	10.3390/horticulturae8030197
	Alternative Control of Tomato Wilt Using the Aqueous Extract of Calotropis procera
	Abo-Elyousr, Kamal A. M.; Ali, Esmat F.; Sallam, Nashwa M. A.
通讯作者	Abo-Elyousr, KAM
来源期刊	HORTICULTURAE
EISSN	2311-7524
出版年	2022
卷号	8 期号:3
英文摘要	Calotropis procera (Aiton) Dryand (commonly known as the apple of sodom, calotrope, and giant milkweed) is an evergreen, perennial shrub of the Apocynaceae family, and is mainly found in arid and semi-arid regions. Previous studies have established the toxic effects of Calotropis procera (C. procera) (Aiton). Its extract is used as one of the vital alternatives to pesticides due to its effective impacts on several pathogens and to combat insect pests that cause severe damage to several crops, but so far, its effects on combating Fusarium oxysporum f. sp. lycopersici (FOL) have not yet been evaluated. Therefore, the current study focuses on evaluating the effects of the aqueous extract of this plant on FOL by studying physicochemical indicators. In Saudi Arabia and many other countries, such disease is considered as one of the critical factors affecting tomato growth and production. For the control of Fusarium wilt disease (Fwd), many strategies have been developed, but are limited in their use. Ten isolates of the pathogens were obtained from diseased tomato plants. These isolates were able to exhibit symptoms of tomato wilt, and they varied in their virulence. Isolate No. 5 caused the highest severity of the disease (73%). According to these results, we used this isolate in the following experiment, which was identified by ITS sequences as F. oxysporum f. sp. lycopersici. Following intensive screening studies, we selected aqueous plant extract of C. procera to study its effectiveness against Fwd of tomato plants and their antifungal activity or induce systemic resistance in plants. All concentrations of C. procera extracts suppressed growth of the pathogen. The highest reduction of mycelia growth was obtained by aqueous extract at 15%, it reduced the pathogen growth to 70.2%, relative to the control. In greenhouse conditions, the aqueous C. procera extract at 5, 10, and 15% significantly reduced Fwd of the tomato compared to the infected control (52.01, 69.86, and 83.6%, respectively). The use of aqueous C. procera extract at 5, 10, and 15% significantly enhanced the fresh and dry weight of tomato plants (g plant(-1)) compared to inoculated plants (for fresh weight: 50, 66.6, and 86.6 and for dry weight: 60, 100, and 120%, respectively). Total phenols and flavonoids as well as antioxidant enzymes were increased in inoculated or non-inoculated tomato plants after being treated with aqueous extracts of C. procera.
英文关键词	tomato wilt antifungal activity antifungal activity systemic resistance phenol content flavonoid peroxidase
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000775286600001
WOS关键词	BIOLOGICAL-CONTROL ; PLANT-EXTRACTS ; FUSARIUM-WILT ; GROWTH ; MANAGEMENT ; RESISTANCE ; INDUCTION ; ENZYMES ; DISEASE ; ROT
WOS类目	Horticulture
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393016
推荐引用方式 GB/T 7714	Abo-Elyousr, Kamal A. M.,Ali, Esmat F.,Sallam, Nashwa M. A.. Alternative Control of Tomato Wilt Using the Aqueous Extract of Calotropis procera[J],2022,8(3).
APA	Abo-Elyousr, Kamal A. M.,Ali, Esmat F.,&Sallam, Nashwa M. A..(2022).Alternative Control of Tomato Wilt Using the Aqueous Extract of Calotropis procera.HORTICULTURAE,8(3).
MLA	Abo-Elyousr, Kamal A. M.,et al."Alternative Control of Tomato Wilt Using the Aqueous Extract of Calotropis procera".HORTICULTURAE 8.3(2022).