Mammalian androgen stimulates photosynthesis in drought-stressed soybean

Abstract: The aim of the present studies was to assess the possibility of compensating the negative effects of drought stress on gaseous exchange and efficiency of photosystem II in soybean seedlings by application of the androgen — androstenedione. Androstenedione (0.25 mg dm−3) was applied via presowing seed soaking (12 h). Control seeds were untreated with steroid. Plants were cultured in pots. On the 12th day of growth, the plants were watered for the last time. Drought symptoms occurred during the next 10 days. On the 22nd day of growth, leaf gaseous exchange and PSII measurements were taken. Afterwards the plants were watered. Two days later measurements were taken again. Androstenedione improved the intensity of leaf net photosynthesis. The effect of androstenedione was manifested during the rehydration of plants that have undergone a period of drought. An increase in net photosynthesis intensity was accompanied by higher transpiration. Possible mechanisms of androstenedione action — effect on aquaporin functionality and membrane stability — are discussed. The significance of ethanol and DMSO (solvents of steroid) in experiments on the physiological activity of androstenedione is also considered.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Mammalian androgen stimulates photosynthesis in drought-stressed soybean ; volume:7 ; number:5 ; year:2012 ; pages:902-909 ; extent:8
Open life sciences ; 7, Heft 5 (2012), 902-909 (gesamt 8)

Creator
Janeczko, Anna
Kocurek, Maciej
Marcińska, Izabela

DOI
10.2478/s11535-012-0068-6
URN
urn:nbn:de:101:1-2409201900342.304624510924
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:31 AM CEST

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Associated

  • Janeczko, Anna
  • Kocurek, Maciej
  • Marcińska, Izabela

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