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1.
Microbiol Resour Announc ; 11(10): e0064822, 2022 Oct 20.
Article in English | MEDLINE | ID: mdl-36154144

ABSTRACT

Here, we report the genome sequence of the mycorrhizal helper bacterium (MHB) Pseudomonas mandelii strain 29. This is the genome of an MHB associated with ascocarps of the desert truffle Terfezia claveryi. The genome is complete and consists of 6,302,122 bp and 5,812 predicted protein-coding sequences.

2.
Physiol Plant ; 170(4): 537-549, 2020 Dec.
Article in English | MEDLINE | ID: mdl-32869857

ABSTRACT

Predicted increases in atmospheric concentration of carbon dioxide (CO2 ) coupled with increased temperatures and drought are expected to strongly influence the development of most of the plant species in the world, especially in areas with high risk of desertification like the Mediterranean basin. Helianthemum almeriense is an ecologically important Mediterranean shrub with an added interest because it serves as the host for the Terfezia claveryi mycorrhizal fungus, which is a desert truffle with increasingly commercial interest. Although both plant and fungi are known to be well adapted to dry conditions, it is still uncertain how the increase in atmospheric CO2 will influence them. In this article we have addressed the physiological responses of H. almeriense × T. claveryi mycorrhizal plants to increases in atmospheric CO2 coupled with drought and high vapor pressure deficit. This work reports one of the few estimations of mesophyll conductance in a drought deciduous Mediterranean shrub and evaluates its role in photosynthesis limitation. High atmospheric CO2 concentrations help desert truffle mycorrhizal plants to cope with the adverse effects of progressive drought during Mediterranean springs by improving carbon net assimilation, intrinsic water use efficiency and dispersal of the species through increased flowering events.


Subject(s)
Ascomycota , Cistaceae , Mycorrhizae , Carbon Dioxide , Symbiosis
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