Selected physiological parameters of creeping willow [Salix repens subsp. arenaria (L.) Hiit.]: a shrubby plant inhabiting degraded industrial areas

Autor: Paulina Supel, Marta Śliwa, Ulrich Lüttge, Adriana Maria Kaproń, Andrzej Kornaś, Paweł Kaszycki, Zbigniew Miszalski
Rok vydání: 2019
Předmět:
Zdroj: Trees. 33:1447-1457
ISSN: 1432-2285
0931-1890
DOI: 10.1007/s00468-019-01872-z
Popis: Salix arenaria from sandy sites tended to grow fast, notwithstanding particular stress conditions in the desert habitat. The study was aimed at characterizing main adaptive changes in Salix arenaria exposed to harsh conditions of a desert-like environment. It was clearly shown that the plant was capable of adapting most of its photosynthesis parameters to enable efficient vegetative performance. A closer look at plant anatomical structures made it possible to better define the changes developed by plants populating sandy habitats as compared with the vegetation sites located in the nearby forest. The desert environment generated physiological stress of water availability and increased the plants’ water use efficiency (WUE) during photosynthesis. All the collected data indicate that the photochemical apparatus in S. arenaria inhabiting desert areas got slightly adapted to strong light and drought, which involved some photoinhibition mechanism and the reduction of the reaction center (RC) size (photosystem II, PSII), while keeping the plant photochemical activity at a similar level. Determination of microbial frequency in the sandy soil of the desert-growing plants showed microbiota population high enough as not to hamper plant growth. The root zones of both the desert-growing and control plants provided favorable conditions enabling populous microbial proliferation, particularly biostimulated during the spring season. The arbuscular mycorrhiza was also shown to be well developed and independent of the original plant habitat (desert or forest).
Databáze: OpenAIRE
Externí odkaz: