Mobilization of Endosperm Reserves in Cereal Seeds under Anoxia

Perata, Pierdomenico; Guglielminetti, Lorenzo; Alpi, Amedeo

doi:10.1093/oxfordjournals.aob.a010306

Cited by 158 publications

(157 citation statements)

References 44 publications

Supporting

Mentioning

154

Contrasting

Unclassified

Order By: Relevance

“…In order to address these possibilities, the effects of different concentrations of exogenous IAA on the percentage and rate of seed germination were also examined. During germination, plant seeds accelerate their respiratory metabolism to produce metabolic energy and biosynthetic precursors (Perata et al, 1997). To maintain respiratory metabolism crucial to germination, readily available respiratory carbohydrates and soluble sugars must be supplied constantly.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Indole-3-acetic acid (IAA) producing Pseudomonas isolates inhibit seed germination and α-amylase activity in durum wheat (Triticum turgidum L.)

Tabatabaei

Ehsanzadeh

Etesami

et al. 2016

Span. j. agric. res.

View full text Add to dashboard Cite

The role of plant-associated bacteria in plant physiology and metabolism is well documented, but little has been known about the roles played by Pseudomonas in durum wheat (Triticum turgidum L. var durum) growth and development. An in vitroexperiment was conducted to observe the effect of the inoculation of four indole-3-acetic acid (IAA)-producing Pseudomonas isolates and exogenous IAA on seed germination traits and α-amylase activity of durum wheat. The results showed inoculation with all bacterial isolates led to a decrease in the germination percent, although the extent of the depression varied with the isolate. A significant relationship between concentrations of bacterial IAA and the germination inhibition percent in durum wheat seeds by different bacteria strains was observed. The results of this assay showed the effect of bacterial isolates on α-amylase activity after six and 8 days of inoculation was significant, while effect of these isolates on α-amylase activity after two and 4 days of inoculation was not meaningful. In addition, the exogenously applied IAA displayed a concentration-dependent effect on seed germination attributes and α-amylase activity, consistent with the possibility that the inhibitory effect of bacterial inoculation on seed germination was in consequence of bacteria-produced IAA. Therefore, it may suggested that the inhibitory role of IAA in seed germination and α-amylase activity should be taken into account during the screening of IAA-producing Pseudomonas isolates for durum wheat growth promoting agents.

show abstract

Section: Discussionmentioning

confidence: 99%

“…The hydrolytic enzyme α-amylase is known to play a major role in degradation of reserve carbohydrates (i.e. starch) to soluble sugars during germination (Perata et al, 1997). Thus, the induction of α-amylase is essential to maintain an active respiratory metabolism and, therefore, seed germination in durum wheat seeds.…”

Section: Discussionmentioning

confidence: 99%

Indole-3-acetic acid (IAA) producing Pseudomonas isolates inhibit seed germination and α-amylase activity in durum wheat (Triticum turgidum L.)

Tabatabaei

Ehsanzadeh

Etesami

et al. 2016

Span. j. agric. res.

View full text Add to dashboard Cite

show abstract

“…The role of a-amylase isoforms in submerged soil Sugar has long been recognized as an important factor in the anoxic tolerance of plants. It not only provides a substrate for energy production, but also the carbon skeletons needed for biosynthesis (Vartapetian et al, 1974 andRicard et al, 1994;Perata et al, 1997). However, the role of individual isoforms of a-amylase in seedling growth remains ambiguous.…”

Section: Correlation Between Coleoptile Length and A-mentioning

confidence: 99%

“…The synthesis of a-amylase is regulated at both the transcriptional and post-transcriptional levels (Perata at al., 1992;Bush et al, 1995). A carbon metabolite signal hypothesis has been proposed to describe the series of regulatory interactions between carbon metabolites and hormones (Thomas et al, 1994 ;Perata et al, 1997).…”

mentioning

confidence: 99%

Expression ofα-Amylase Isoforms and theRAmylAGene in Rice (Oryza sativaL.) during Seed Germination, and its Relationship with Coleoptile Length in Submerged Soil

Huang¹,

Toyofuku²,

Yamaguchi³

et al. 2000

Plant Production Science

View full text Add to dashboard Cite

“…The tolerance of rice coleoptiles to oxygen defi ciency is related to the ability to maintain glycolytic activity leading to ATP production (Guglielminetti et al, 1995;Perata et al, 1997;Gibbs et al, 2000;Rahman et al, 2001). In this regard, the coleoptiles of rice seedlings are the most studied, although no unique pathways of metabolism have emerged to explain their tolerance to oxygen defi ciency (Perata et al, 1997;Vartapetian and Jackson, 1997;Das and Uchimiya, 2002).…”

mentioning

confidence: 99%