Interaction between hydrogen peroxide and plant hormones during germination and the early growth of pea seedlings
Gregorio Barba-Espín,Pedro Diaz-Vivancos,María José Clemente-Moreno,Alfonso Albacete,Lydia Faize,Mohamed Faize,Francisco Pérez-Alfocea,José Antonio Hernández +7 more
TL;DR: The results suggest an interaction among the redox state and plant hormones, orchestrated by H(2)O(2), in the induction of proteins related to plant signalling and development during the early growth of pea seedlings.
read more
Abstract: Hydrogen peroxide (H(2)O(2)) increased the germination percentage of pea seeds, as well as the growth of seedlings in a concentration-dependent manner. The effect of H(2)O(2) on seedling growth was removed by incubation with 10 microm ABA. The H(2)O(2)-pretreatment produced an increase in ascorbate peroxidase (APX), peroxidase (POX) and ascorbate oxidase (AAO). The increases in these ascorbate-oxidizing enzymes correlated with the increase in the growth of the pea seedlings as well as with the decrease in the redox state of ascorbate. Moreover, the increase in APX activity was due to increases in the transcript levels of cytosolic and stromal APX (cytAPX, stAPX). The proteomic analysis showed that H(2)O(2) induced proteins related to plant signalling and development, cell elongation and division, and cell cycle control. A strong correlation between the effect of H(2)O(2) on plant growth and the decreases in ABA and zeatin riboside (ZR) was observed. The results suggest an interaction among the redox state and plant hormones, orchestrated by H(2)O(2), in the induction of proteins related to plant signalling and development during the early growth of pea seedlings.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Vitamin E and defense-related phytohormones are reliable markers of embryo growth in macaw palm fruits exposed to various storage conditions
Leilane C. Barreto,Leilane C. Barreto,Queila Souza Garcia,Melanie Morales,Maren Müller,Sergi Munné-Bosch +5 more
TL;DR: Storing fruit under laboratory conditions is the most efficient means of obtaining plantlets successfully, and vitamin E and abscisic acid can be used as reliable indicators of embryo growth during in vitro culture are concluded.
11
Elicitation: a new perspective into plant chemo-diversity and functional property.
TL;DR: In this paper, the authors summarized the state-of-the-art on the use of elicitors to produce sprouts with improved functional properties and showed that elicitors trigger the synthesis of plant metabolites by changing enzyme activities or gene expression related to the plant defence system, and promote sprout growth by enhancing the levels of plant growth hormones.
10
Patent
Enhancement and control of seed germination with compositions comprising a transition metal catalyst and an oxidant
A. A. Olkowski,Bernard Laarveld,Karen K. Tanino +2 more
- 29 May 2014
TL;DR: In this paper, a transition metal catalyst such as a nanoparticulate catalyst bearing one or more transition metals, a carbon nanotube impregnated with Fe, Cu, Mo, Rh or Co, and an oxidant such as hydrogen peroxide are presented.
9
Pretreatment of seeds with hydrogen peroxide improves deep-sowing tolerance of wheat seedlings.
TL;DR: In this article, the authors evaluated whether H2O2 pretreatment of seeds can initiate metabolic changes and lead to improved deep-sowing tolerance in wheat, and they found that the pretreatment with 0.05μm H 2O2 promoted first internode elongation by 13% in the deep sowing tolerant wheat cultivar “Tir” and by 32 % in the sensitive cultivar "Kirac-66” under deep-growing conditions, whereas internode length was inhibited by diphenyleneiodonium chloride.
9
References
A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding
TL;DR: This assay is very reproducible and rapid with the dye binding process virtually complete in approximately 2 min with good color stability for 1 hr with little or no interference from cations such as sodium or potassium nor from carbohydrates such as sucrose.
254.4K
Multiple sequence alignment with hierarchical clustering
TL;DR: An algorithm is presented for the multiple alignment of sequences, either proteins or nucleic acids, that is both accurate and easy to use on microcomputers, based on the conventional dynamic-programming method of pairwise alignment.
5.6K
Seed dormancy and the control of germination
TL;DR: It is argued that adaptation has taken place on a theme rather than via fundamentally different paths and similarities underlying the extensive diversity in the dormancy response to the environment that controls germination are identified.
Dual action of the active oxygen species during plant stress responses.
TL;DR: This review discusses the dual action of AOS during plant stress responses, which was first described in pathogenesis but has also recently been demonstrated during several abiotic stress responses.
2K
Hydrogen peroxide and nitric oxide as signalling molecules in plants
TL;DR: The potential roles of H( 2)O(2) and NO during various stresses and the signalling pathways they activate are discussed and key signalling components that might provide targets for enhancing crop production are identified.
1.2K