期刊
FOOD CHEMISTRY
卷 359, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.129671
关键词
edulis); Piriformospora indica; Metabolite profile; Growth stimulation; Growth-defense trade-off; Salicylic acid
资金
- Fujian Provincial Characteristic Fruit Industry Project [HKH190278A]
- [CRC1127]
- [239748522]
The study indicates that inoculating the beneficial root-colonizing fungus Piriformospora indica can promote the growth and disease resistance of passion fruit plants, resulting in improved fruit quality.
Passion fruit (Passiflora edulis) has an important economic value as exotic ingredient in juice blends. We inoculated the passion fruit cultivar Passiflora edulis Sims f. edulis's roots with the beneficial root-colonizing fungus Piriformospora indica under greenhouse conditions. The experiments were performed at three different locations and times (between 2017 and 2019). After transient initial growth retardation associated with a mild salicylicacid (SA)-dependent defense activation and reduced sucrose metabolism, plant performance and growth are promoted during later stages. The elevated SA level in the aerial parts stimulates the plant immune system and promotes pathogen resistance in the adult plants and the fruit peels. P. indica stimulates the fruit size and fruit quality, and the higher amounts of defense-related secondary metabolites in the peels restrict growth of herbivorous insect larvae fed with peel extracts. We conclude that application of P. indica to passion fruits stimulates the plants' immune system and improves the fruits' quality.
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