Arbuscular Mycorrhizal Fungi Promote Physiological and Biochemical Advantages in Handroanthus serratifolius Seedlings Submitted to Different Water Deficits.

Autor: Correia TS; Institute of Water Science and Technology, Federal University of Western Para, Santarém 68040-255, Brazil., Lara TS; Institute of Water Science and Technology, Federal University of Western Para, Santarém 68040-255, Brazil., Santos JAD; Institute of Water Science and Technology, Federal University of Western Para, Santarém 68040-255, Brazil., Sousa LDS; Institute of Water Science and Technology, Federal University of Western Para, Santarém 68040-255, Brazil., Santana MDF; Institute of Water Science and Technology, Federal University of Western Para, Santarém 68040-255, Brazil.
Jazyk: angličtina
Zdroj: Plants (Basel, Switzerland) [Plants (Basel)] 2022 Oct 15; Vol. 11 (20). Date of Electronic Publication: 2022 Oct 15.
DOI: 10.3390/plants11202731
Abstrakt: Climate change causes increasingly longer periods of drought, often causing the death of plants, especially when they are in the early stages of development. Studying the benefits provided by arbuscular mycorrhizal (AM) fungi to plants in different water regimes is an efficient and sustainable strategy to face climate change. Thus, this study investigated the influence of AM fungi on Handroanthus serratifolius seedlings under different water regimes, based on biochemical, and nutritional growth parameters. The experiment was carried out in H. serratifolius seedlings cultivated with mycorrhizas (+AMF) and without mycorrhizas (-AMF) in three water regimes; a severe water deficit (SD), a moderate water deficit (MD), and a well-watered (WW) condition. AM fungi provided greater osmoregulation under water deficit conditions through the accumulation of soluble sugars, total free amino acids, and proline, as well as by reducing sugar. The increase in the absorption of phosphorus and nitrate was observed only in the presence of fungi in the well-watered regimen. A higher percentage of colonization was found in plants submitted to the well-watered regimen. Ultimately, AM fungi promoted biochemical, nutritional, and growth benefits for H. serratifolius seedlings under the water deficit and well-hydrated conditions, proving that AMF can be used to increase the tolerance of H. serratifolius plants, and help them to survive climate change.
Databáze: MEDLINE