Effect of elevated temperature on catalase and superoxide dismutase during maize development

Matters, Gail L.; Scandalios, John G.

doi:10.1111/j.1432-0436.1986.tb00780.x

Cited by 20 publications

(6 citation statements)

References 40 publications

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“…Each of the Cat genes exhibits temporal and spatial specificity in its expression ( Scandalios et al . 1997 ), and each gene responds differently to different environmental signals ( Matters & Scandalios 1986a; Matters & Scandalios 1986b; Skadsen & Scandalios 1987). Knowledge of how the Cat genes are regulated at the transcription level by internal genetically programmed cues and environmental signals is a key to understanding the specific physiological role(s) of each of the catalase isozymes in maize.…”

Section: Discussionmentioning

confidence: 99%

“…In maize, catalase exists as three biochemically distinct isozymes, CAT-1, CAT-2 and CAT-3, encoded by the three unlinked genes, Cat1, Cat2 and Cat3, respectively. Each of the Cat genes exhibits temporal and spatial speci®city in its expression (Scandalios et al, 1997), and each gene responds differently to different environmental signals (Matters and Scandalios, 1986a;Matters and Scandalios, 1986b;Skadsen and Scandalios, 1987). Knowledge of how the Cat genes are regulated at the transcription level by Cat transcript accumulation in response to increasing ABA concentrations and 11% mannitol.…”

Section: Discussionmentioning

confidence: 99%

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Cis‐elements and trans‐factors that regulate expression of the maize Cat1 antioxidant gene in response to ABA and osmotic stress: H₂O₂ is the likely intermediary signaling molecule for the response

Guan¹,

Zhao²,

Scandalios³

2000

The Plant Journal

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353

198

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SummaryThe mechanisms by which the maize antioxidant Cat1 gene responds to abscisic acid (ABA) and osmotic stress have been investigated. Results show that during late embryogenesis, Cat1 expression in vivo is independent of endogenous ABA levels. However, exogenously applied ABA signi®cantly enhances Cat1 expression. Transient assays using particle bombardment show that the proximal ABRE2 element on the Cat1 promoter is responsible for the induction of Cat1 expression by ABA. We further show that ABA induces the expression of Cat1 via the interaction between ABRE2 and one of its binding proteins, CBF1 (Cat1 binding factor 1). Using ABA-de®cient mutant embryos, we show that osmotic stress induces Cat1 expression through two alternate signal transduction pathways: an ABA signaling pathway leading to the interaction between the ABRE2 motif and CBF1, and a pathway via the interaction of ABRE2 and CBF2 (Cat1 binding factor 2) that is independent of ABA. The data presented clearly suggest that hydrogen peroxide (H 2 O 2 ) plays an important intermediary role in the ABA signal transduction pathway leading to the induction of the Cat1 gene.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Cis‐elements and trans‐factors that regulate expression of the maize Cat1 antioxidant gene in response to ABA and osmotic stress: H₂O₂ is the likely intermediary signaling molecule for the response

Guan¹,

Zhao²,

Scandalios³

2000

The Plant Journal

Self Cite

353

198

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“…environmental signals [71,90,[95][96][97]. The mRNA levels of CAT2 and CAT3 of A. thaliana [98], Cat1 of N. plumbaginifolia [88], and CAT-3 of Z. mays [99] are regulated by circadian rhythm, whereas others, such as Cat2 and Cat3 of N. plumbaginifolia and CAT1 of A. thaliana, are not [91].…”

Section: Catalase and Plant Stressmentioning

confidence: 99%

Dual action of the active oxygen species during plant stress responses

Dat¹,

Vandenabeele²,

Vranová³

et al. 2000

Cellular and Molecular Life Sciences (CMLS)

1,685

964

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Adaptation to environmental changes is crucial for plant growth and survival. However, the molecular and biochemical mechanisms of adaptation are still poorly understood and the signaling pathways involved remain elusive. Active oxygen species (AOS) have been proposed as a central component of plant adaptation to both biotic and abiotic stresses. Under such conditions, AOS may play two very different roles: exacerbating damage or signaling the activation of defense responses. Such a dual function was first described in pathogenesis but has also recently been demonstrated during several abiotic stress responses. To allow for these different roles, cellular levels of AOS must be tightly controlled. The numerous AOS sources and a complex system of oxidant scavengers provide the flexibility necessary for these functions. This review discusses the dual action of AOS during plant stress responses.

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“…This could be not conducive to photosynthesis. However, superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), ascorbic acid enzyme (APX), and glutathione reductase (GR) could scavenge AOS produced by HTS and protect thermal stability of the cell membrane (Matters and Scandalios 1986;Obata et al 2015). High-temperature stress reduces chlorophyll and disrupts electron transfer to limits photosynthesis Most chlorophyll acts as antennae in the pigment bed.…”

Section: Photosynthesismentioning

confidence: 99%

The causes and impacts for heat stress in spring maize during grain filling in the North China Plain — A review

Tao

Chen

et al. 2016

Journal of Integrative Agriculture

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High-temperature stress (HTS) at the grain-filling stage in spring maize (Zea mays L.) is the main obstacle to increasing productivity in the North China Plain (NCP). To solve this problem, the physiological mechanisms of HTS, and its causes and impacts, must be understood. The HTS threshold of the duration and rate in grain filling, photosynthetic characteristics (e.g., the thermal stability of thylakoid membrane, chlorophyll and electron transfer, photosynthetic carbon assimilation), water status (e.g., leaf water potential, turgor and leaf relative water content) and signal transduction in maize are reviewed. The HTS threshold for spring maize is highly desirable to be appraised to prevent damages by unfavorable temperatures during grain filling in this region. HTS has negative impacts on maize photosynthesis by damaging the stability of the thylakoid membrane structure and degrading chlorophyll, which reduces light energy absorption, transfer and photosynthetic carbon assimilation. In addition, photosynthesis can be deleteriously affected due to inhibited root growth under HTS in which plants decrease their water-absorbing capacity, leaf water potential, turgor, leaf relative water content, and stomatal conductance. Inhibited photosynthesis decrease the supply of photosynthates to the grain, leading to falling of kernel weight and even grain yield. However, maize does not respond passively to HTS. The plant transduces the abscisic acid (ABA) signal to express heat shock proteins (HSPs), which are molecular chaperones that participate in protein refolding and degradation caused by HTS. HSPs stabilize target protein configurations and indirectly improve thylakoid membrane structure stability, light energy absorption and passing, electron transport, and fixed carbon assimilation, leading to improved photosynthesis. ABA also induces stomatal closure to maintain a good water status for photosynthesis. Based on understanding of such mechanisms, strategies for alleviating HTS at the grain-filling stage in spring maize are summarized. Eight strategies have the potential to improve the ability of spring maize to avoid or tolerate HTS in this study, e.g., adjusting sowing date to avoid

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Effect of elevated temperature on catalase and superoxide dismutase during maize development

Cited by 20 publications

References 40 publications

Cis‐elements and trans‐factors that regulate expression of the maize Cat1 antioxidant gene in response to ABA and osmotic stress: H₂O₂ is the likely intermediary signaling molecule for the response

Cis‐elements and trans‐factors that regulate expression of the maize Cat1 antioxidant gene in response to ABA and osmotic stress: H₂O₂ is the likely intermediary signaling molecule for the response

Dual action of the active oxygen species during plant stress responses

The causes and impacts for heat stress in spring maize during grain filling in the North China Plain — A review

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Effect of elevated temperature on catalase and superoxide dismutase during maize development

Cited by 20 publications

References 40 publications

Cis‐elements and trans‐factors that regulate expression of the maize Cat1 antioxidant gene in response to ABA and osmotic stress: H2O2 is the likely intermediary signaling molecule for the response

Cis‐elements and trans‐factors that regulate expression of the maize Cat1 antioxidant gene in response to ABA and osmotic stress: H2O2 is the likely intermediary signaling molecule for the response

Dual action of the active oxygen species during plant stress responses

The causes and impacts for heat stress in spring maize during grain filling in the North China Plain — A review

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Cis‐elements and trans‐factors that regulate expression of the maize Cat1 antioxidant gene in response to ABA and osmotic stress: H₂O₂ is the likely intermediary signaling molecule for the response

Cis‐elements and trans‐factors that regulate expression of the maize Cat1 antioxidant gene in response to ABA and osmotic stress: H₂O₂ is the likely intermediary signaling molecule for the response