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Title: Hydrogen sulphide: a versatile tool for the regulation of growth and defense responses in horticultural crops
Authors: Fotopoulos, Vasileios 
Christou, Anastasis
Antoniou, Chrystalla 
Manganaris, George A. 
Keywords: Plant growth
Hydrogen sulphide
Issue Date: May-2015
Publisher: Taylor & Francis
Source: The Journal of Horticultural Science & Biotechnology, Volume 90, Number 3, Pages 227-234
Abstract: The improvement of plant growth and productivity under biotic and abiotic stress conditions, as well as the reductionof post-harvest losses, are of paramount significance to meet the increasing demand for food by a growing Worldpopulation. Hydrogen sulphide (H2S) has recently appeared as a key contributor towards this goal through itsbioactive role in the regulation of plant defence responses. In this review, we provide an up-to-date overview of recentliterature concerning the biosynthesis and regulation of H2S within plant cells, as well as its involvement in a series ofplant physiological processes. More specifically, H2S is actively associated with several horticultural plant growth anddevelopmental processes, tolerance responses following exposure to stress factors, as well as in post-harvest fruitphysiology. The H2S-mediated enhancement of tolerance to several abiotic stress factors is highlighted, with particularemphasis on the priming effects of H2S on the anti-oxidant capacity, redox regulation and signalling, andtranscriptional regulation of cellular defence components in plants. Moreover, H2S has been reported to be associatedwith seed germination, increased growth, and root organogenesis, while also enhancing the post-harvest performanceand anti-oxidant capacity of fruit. The present review proposes a practical role for H2S in horticultural crop physiology,further supporting the notion that H2S acts as a key signalling molecule in plants, possibly acting by “cross-talk” withother secondary plant cell messengers.
ISSN: 1462-0316
DOI: 10.1080/14620316.2015.11513176
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