Arbuscular mycorrhizae alleviate water deficit in Dipteryx alata Vogel: seedling quality and resilience
| Autor: | Silvana de Paula Quintão Scalon, Vânia Tomazelli de Lima, Daiane Mugnol Dresch, Cleberton Correia Santos, Maílson Vieira Jesus, Andressa Caroline Foresti, Lucas Coutinho Reis, Jéssica Aline Linné |
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| Přispěvatelé: | Federal University of Grande Dourados, Universidade Estadual Paulista (UNESP) |
| Rok vydání: | 2022 |
| Předmět: |
Limiting factor
Global and Planetary Change Ecology biology Agroforestry Hydrical stress Dipteryx alata Arbuscular mycorrhizal fungi Forestry Rhizophagus clarum Fabaceae Greenhouse experiment biology.organism_classification Water deficit Seedling Baru Resilience (network) Fruit tree Economic potential |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1208-6037 0045-5067 |
| DOI: | 10.1139/cjfr-2021-0088 |
| Popis: | Made available in DSpace on 2022-04-28T19:51:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01 Dipteryx alata Vogel (Fabaceae) is a fruit tree species native to the Cerrado with ecological and economic potential. However, a water deficit can be a limiting factor to the initial growth of this species, requiring knowledge on technologies that can alleviate this stressful effect. We hypothesized that inoculation with arbuscular mycorrhizae fungi contributes to stress mitigation during and after water deficit. Dipteryx alata seedlings were subjected to two water regimes (control: seedlings irrigated daily; and water deficit: irrigation suspension), associated with inoculation with arbuscular mycorrhizal fungi (AMF) (AM–, without inoculation; AM+, inoculation with Rhizophagus clarum), and three evaluation periods (T0, time zero; F0, zero photosynthesis (7 days of water restriction); REC, recovery (100 days)). Water deficit impaired water relations, decreasing the quality of D. alata seedlings. AM+ seedlings showed higher relative water content (RWC), leaf area ratio, chlorophyll index, and Rubisco carboxylation capacity (A/Ci), which helped in photosynthetic metabolism. Inoculation with R. clarum alleviated the impact of stress on water use efficiency, water potential, RWC, and A/Ci in REC. Inoculation with AMF is a promising management technique in the production of D. alata seedlings for increasing seedling quality and resilience to water deficit. Faculty of Agrarian Sciences Federal University of Grande Dourados, Highway Dourados-Itahum, Km 12 – University City, Mato Grosso do Sul Departament of Botany Biosciences Intitute São Paulo State University Júlio de Mesquita Filho, Avenue 24 A, 1515, São Paulo Departament of Botany Biosciences Intitute São Paulo State University Júlio de Mesquita Filho, Avenue 24 A, 1515, São Paulo |
| Databáze: | OpenAIRE |
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