The Response of Stevia (Stevia rebaudiana Bertoni) Photosystem II Photochemistry to Fungi Symbiosis and Spermidine Application under Saline Water Irrigation

Saravi, Hadiseh Bahari; Gholami, Ahmad; Pirdashti, Hemmatollah; Firouzabadi, Mehdi Baradaran; Asghari, Hamid Reza

doi:10.3103/s106836742101016x

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…Aspergillus sydowii , Sebacina vermifera , Pseudomonas fluorescens , Gaeumannomyces graminis , Chlamydomonas reinhardtii , Rhizopus stolonifera and Aspergillus niger , have all been proved to interact with Piriformospora indica in the soil [ 25 , 26 ]. Many essential agricultural and horticultural plants have beneficial associations with Piriformospora indica , and this fungus not only allows host plants to thrive under nutrient-deficient soils, but also grants resistance to biotic (foliar and root pathogens) and abiotic (heavy metals, high temperature, cold, salinity, water and drought) stress, induces early flowering, improves seed production, regulates plant development, and increases the production of essential oils in medicinal plants [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Hydro-Priming and Colonization with Piriformospora indica and Azotobacter chroococcum on Physio-Biochemical Traits, Flavonolignans and Fatty Acids Composition of Milk Thistle (Silybum marianum) under Saline Conditions

Yaghoubian

Antar

Ghassemi

et al. 2022

Plants

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Salinity is an important challenge around the world, effecting all physiological and biochemical processes of plants. It seems that seed priming can diminish the negative impacts of salinity. To study the effects of hydro-priming and inoculation with Piriformospora indica (Pi) and Azotobacter chroococcum (Az) on physio-biochemical traits, flavonolignans and fatty acids composition of milk thistle under saline conditions, a greenhouse experiment was carried out. Our results indicated that under salinity, seed priming, especially Pi, improved physio-biochemical properties in milk thistle. Under 120 mM NaCl, inoculation with Pi increased membrane stability index (MSI) and relative water content (RWC) (by 21.86 and 33.43%, respectively). However, peroxidase (POX) (5.57- and 5.68-fold in roots and leaves, respectively), superoxide dismutase (SOD) (4.74- and 4.44-fold in roots and leaves, respectively), catalase (CAT) (6.90- and 8.50-fold in roots and leaves, respectively) and ascorbate peroxidase (APX) (5.61- and 5.68-fold in roots and leaves, respectively) activities increased with increasing salinity. Contrary to salinity, hydro-priming with Az and Pi positively altered all these traits. The highest content of the osmolytes, adenosine triphosphate (ATP) content and rubisco activity were recorded in Pi treatments under 120 mM NaCl. Stearic acid (20.24%), oleic acid (21.06%) and palmitic acid (10.48%) increased, but oil content (3.81%), linolenic and linoleic acid content (22.21 and 15.07%, respectively) decreased under saline conditions. Inoculations of Pi positively altered all these traits. The present study indicated that seed priming with Pi under 120 mM NaCl resulted in maximum silychristin, taxidolin, silydianin, isosilybin, silybin and silymarin of milk thistle seeds.

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