Tomato growth promotion by the fungal endophytes Serendipita indica and Serendipita herbamans is associated with sucrose de-novo synthesis in roots and differential local and systemic effects on carbohydrate metabolisms and gene expression

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F22%3A00561107" target="_blank" >RIV/86652079:_____/22:00561107 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0176161722001419" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0176161722001419</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jplph.2022.153755" target="_blank" >10.1016/j.jplph.2022.153755</a>

Result language

angličtina

Original language name

Tomato growth promotion by the fungal endophytes Serendipita indica and Serendipita herbamans is associated with sucrose de-novo synthesis in roots and differential local and systemic effects on carbohydrate metabolisms and gene expression

Original language description

Plant growth-promoting and stress resilience-inducing root endophytic fungi represent an additional carbohy-drate sink. This study aims to test if such root endophytes affect the sugar metabolism of the host plant to divert the flow of resources for their purposes. Fresh and dry weights of roots and shoots of tomato (Solanum lyco-persicum) colonised by the closely related Serendipita indica and Serendipita herbamans were recorded. Plant carbohydrate metabolism was analysed by measuring sugar levels, by determining activity signatures of key enzymes of carbohydrate metabolism, and by quantifying mRNA levels of genes involved in sugar transport and turnover. During the interaction with the tomato plants, both fungi promoted root growth and shifted shoot biomass from stem to leaf tissues, resulting in increased leaf size. A common effect induced by both fungi was the inhibition of phosphofructokinase (PFK) in roots and leaves. This glycolytic-pacing enzyme shows how the glycolysis rate is reduced in plants and, eventually, how sugars are allocated to different tissues. Sucrose phosphate synthase (SPS) activity was strongly induced in colonised roots. This was accompanied by increased SPS-A1 gene expression in S. herbamans-colonised roots and by increased sucrose amounts in roots colonised by S. indica. Other enzyme activities were barely affected by S. indica, but mainly induced in leaves of S. herbamans- colonised plants and decreased in roots. This study suggests that two closely related root endophytic fungi differentially influence plant carbohydrate metabolism locally and systemically, but both induce a similar in-crease in plant biomass. Notably, both fungal endophytes induce an increase in SPS activity and, in the case of S. indica, sucrose resynthesis in roots. In leaves of S. indica-colonised plants, SWEET11b expression was enhanced, thus we assume that excess sucrose was exported by this transporter to the roots.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 – Development of the Centre of Global Climate Change Impacts Studies</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Plant Physiology

ISSN

0176-1617

e-ISSN

1618-1328

Volume of the periodical

276

Issue of the periodical within the volume

SEP

Country of publishing house

PT - PORTUGAL

Number of pages

12

Pages from-to

153755

UT code for WoS article

000847851300003

EID of the result in the Scopus database

2-s2.0-85135705269