Acclimation of the photosynthetic apparatus and alterations in sugar metabolism in response to inoculation with endophytic fungi

Piotr Rozpądek , Michał Nosek , Agnieszka Domka , Rafał Ważny , Roman Jędrzejczyk , Krzysztof Tokarz , Maria Pilarska , Ewa Niewiadomska , Katarzyna Turnau


The role of an endophytic Zygomycete Mucor sp. in growth promotion and adaptation of the photosynthetic apparatus to increased energy demands of its hosts Arabidopsis arenosa and Arabidopsis thaliana was evaluated. Inoculation with the fungus improved the water use efficiency of the plants and allowed for them to utilize incident light for photochemistry more effectively by upregulating the expression of several photosystem I‐ and II‐related genes and their respective proteins, proteins involved in light harvesting in PSII and PSI and carbon assimilation. This effect was independent of the ability of the plants to acquire nutrients from the soil. We hypothesize that the accelerated growth of the symbiotic plants resulted from an increase in their demand for carbohydrates and carbohydrate turnover (sink strength) that triggered a simultaneous upregulation of carbon assimilation. Arabidopsis plants inoculated with Mucor sp. exhibited upregulated expression in several genes encoding proteins involved in carbohydrate catabolism, sugar transport, and smaller starch grains that indicate a significant upregulation of carbohydrate metabolism.
Author Piotr Rozpądek
Piotr Rozpądek,,
, Michał Nosek
Michał Nosek,,
, Agnieszka Domka
Agnieszka Domka,,
, Rafał Ważny
Rafał Ważny,,
, Roman Jędrzejczyk
Roman Jędrzejczyk,,
, Krzysztof Tokarz (FoBaH / IoPBaB / DoBaPP)
Krzysztof Tokarz,,
- Department of Botany and Plant Physiology
, Maria Pilarska
Maria Pilarska,,
, Ewa Niewiadomska
Ewa Niewiadomska,,
, Katarzyna Turnau
Katarzyna Turnau,,
Journal seriesPlant Cell and Environment, [Plant, Cell and Environment], ISSN 0140-7791, e-ISSN 1365-3040, (N/A 140 pkt)
Issue year2019
Publication size in sheets0.75
ASJC Classification1110 Plant Science; 1314 Physiology
Languageen angielski
Score (nominal)140
Score sourcejournalList
Publication indicators WoS Citations = 1; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.716; WoS Impact Factor: 2018 = 5.624 (2) - 2018=6.026 (5)
Citation count*
Additional fields
FinansowanieThis work was supported by Narodowe Centrum Nauki, Maestro Project DEC‐2011/02/A/NZ9/00137
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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