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Arthrobacter sp. Inoculation Improves Cactus Pear Growth, Quality of Fruits, and Nutraceutical Properties of Cladodes

TitleArthrobacter sp. Inoculation Improves Cactus Pear Growth, Quality of Fruits, and Nutraceutical Properties of Cladodes
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2023
AuthorsPlatamone, G., Procacci Silvia, Maccioni Oliviero, Borromeo I., Rossi M., Bacchetta Loretta, and Forni C.
JournalCurrent microbiology
Volume80
Pagination266
Type of ArticleArticle
ISSN14320991
Abstract

A study was undertaken to determine the effects of a strain of Arthrobacter sp., a Plant Growth-Promoting Bacteria (PGPB), on plant phenology and qualitative composition of Opuntia ficus-indica (L.) Mill. fruits and cladodes. The strain was inoculated in soil, and its effects on cactus pear plants were detected and compared to nontreated plants. Compared to the latter, the treatment with bacteria promoted an earlier plant sprouting (2 months before the control) and fruitification, ameliorating fruit quality (i.e., improved fresh and dry weight: + 24% and + 26%, respectively, increased total solid content by 30% and polyphenols concentrations by 22%). The quality and quantity of monosaccharides of cladodes were also increased by Arthrobacter sp. with a positive effect on their nutraceutical value. In summer, the mean values of xylose, arabinose, and mannose were significantly higher in treated compared to not treated plants (+ 3.54; + 7.04; + 4.76 mg/kg d.w. respectively). A similar trend was observed in autumn, when the cladodes of inoculated plants had higher contents, i.e., 33% xylose, 65% arabinose, and 40% mannose, respect to the controls. In conclusion, Arthrobacter sp. plays a role in the improvement of nutritional and nutraceutical properties of cactus pear plants due to its capabilities to promote plant growth. Therefore, these results open new perspectives in PGPB application in the agro-farming system as alternative strategy to improve cactus pear growth, yield, and cladodes quality, being the latter the main by-product to be utilized for additional industrial uses. © 2023. The Author(s).

Notes

Cited by: 0; All Open Access, Hybrid Gold Open Access

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85164036507&doi=10.1007%2fs00284-023-03368-z&partnerID=40&md5=713dff7c4b3b77ea8721d5d929ce50a8
DOI10.1007/s00284-023-03368-z
Citation KeyPlatamone2023266
PubMed ID37400738