Kinetics of metabolism in sugarcane (Saccharum officinarum L.) under heat stress

Gomathi, R.; Shiyamala, S.; Vasantha, S.; Johnson, Deepa Elizabath; Janani, P.

doi:10.1007/s40502-013-0011-5

Cited by 7 publications

(3 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4, exogenous NaHS could lead to significant accumulation of soluble sugar under heat stress conditions. The result is consistent with the results of previous studies (Gomathi et al 2013;Brunel-Muguet et al 2015). The positive modulation of exogenous H 2 S donor (NaHS) in sol-uble sugar accumulation might also contribute to enhanced stress tolerance.…”

Section: Discussionsupporting

confidence: 92%

Foliar application of sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, can protect seedlings against heat stress in wheat (Triticum aestivum L.)

Yang

Qin

et al. 2016

Journal of Integrative Agriculture

View full text Add to dashboard Cite

Temperature extremes represent an important limiting factor to plant growth and productivity. Low concentration of hydrogen sulfide (H 2 S) has been proven to function in physiological responses to various stresses. The present study evaluated the effect of foliar application of wheat seedlings with a H 2 S donor, sodium hydrosulfide (NaHS), on the response to acute heat stress. The results showed that pretreatment with NaHS could promote heat tolerance of wheat seedlings in a dose-dependent manner. Again, it was verified that H 2 S, rather than other sulfur-containing components or sodion derived from NaHS solution, should contribute to the positive role in promoting wheat seedlings against heat stress. To further study antioxidant mechanisms of NaHS-induced heat tolerance, superoxide dismutase (SOD, EC 1.15.1.1), catalase (CAT, EC 1.11.1.6) and ascorbate peroxidase (APX, EC 1.11.1.11) activities, and H 2 S, hydrogen peroxide (H 2 O 2), malonaldehyde (MDA), and soluble sugar contents in wheat seedlings were determined. The results showed that, under heat stress, the activities of SOD, CAT, and APX, H 2 S, H 2 O 2 , MDA, and soluble sugar contents in NaHS-pretreated seedlings and its control all increased. Meanwhile, NaHS-pretreated seedlings showed higher antioxidant enzymes activities and gene expression levels as well as the H 2 S and soluble sugar levels, and lower H 2 O 2 , MDA contents induced by heat stress. While little effect was detected in antioxidant enzymes activities and soluble substances contents in pretreated wheat seedlings compared with its control under normal culture conditions (data not shown). All of our results suggested that exogenous NaHS could alleviate oxidative damage and improve heat tolerance by regulating the antioxidant system in wheat seedlings under heat stress.

show abstract

Section: Discussionsupporting

confidence: 92%

Foliar application of sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, can protect seedlings against heat stress in wheat (Triticum aestivum L.)

Yang

Qin

et al. 2016

Journal of Integrative Agriculture

View full text Add to dashboard Cite

show abstract

“…Typically, respiration increases with rising temperatures, while photosynthesis declines because it is particularly sensitive to heat (Tjoelker 2018 ). For example, reduced growth of sugarcane at high temperature has been ascribed to lower rates of carbon assimilation and faster respiration (Ebrahim et al 1998 ; Wahid et al 2007 ; Gomathi et al 2013 ). Similarly, the growth rates of domesticated rice ( Oryza sativa ) (Scafaro et al 2016 ) and cotton ( Gossypium hirsutum ) (Reddy et al 1992 ) leaves were reduced once air temperatures rose above about 35 °C.…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic traits of Australian wild rice (Oryza australiensis) confer tolerance to extreme daytime temperatures

2022

View full text Add to dashboard Cite

Key message A wild relative of rice from the Australian savannah was compared with cultivated rice, revealing thermotolerance in growth and photosynthetic processes and a more robust carbon economy in extreme heat. Abstract Above ~ 32 °C, impaired photosynthesis compromises the productivity of rice. We compared leaf tissues from heat-tolerant wild rice (Oryza australiensis) with temperate-adapted O. sativa after sustained exposure to heat, as well as diurnal heat shock. Leaf elongation and shoot biomass in O. australiensis were unimpaired at 45 °C, and soluble sugar concentrations trebled during 10 h of a 45 °C shock treatment. By contrast, 45 °C slowed growth strongly in O. sativa. Chloroplastic CO2 concentrations eliminated CO2 supply to chloroplasts as the basis of differential heat tolerance. This directed our attention to carboxylation and the abundance of the heat-sensitive chaperone Rubisco activase (Rca) in each species. Surprisingly, O. australiensis leaves at 45 °C had 50% less Rca per unit Rubisco, even though CO2 assimilation was faster than at 30 °C. By contrast, Rca per unit Rubisco doubled in O. sativa at 45 °C while CO2 assimilation was slower, reflecting its inferior Rca thermostability. Plants grown at 45 °C were simultaneously exposed to 700 ppm CO2 to enhance the CO2 supply to Rubisco. Growth at 45 °C responded to CO2 enrichment in O. australiensis but not O. sativa, reflecting more robust carboxylation capacity and thermal tolerance in the wild rice relative.

show abstract

“… Responses of sugarcane crops to different thermal challenges. High temperatures affect the molecular, physiological, and biochemical processes of sugarcane, leading to reduced yield and sucrose production ( Wahid, 2007 ; Gomathi et al, 2013 ; Raju et al, 2020 ). …”

Section: Effect Of Fertilizers On Sugarcanementioning

confidence: 99%

Factors affecting the production of sugarcane yield and sucrose accumulation: suggested potential biological solutions

Mehdi,

Cao,

Zhang

et al. 2024

Front. Plant Sci.

View full text Add to dashboard Cite

Environmental stresses are the main constraints on agricultural productivity and food security worldwide. This issue is worsened by abrupt and severe changes in global climate. The formation of sugarcane yield and the accumulation of sucrose are significantly influenced by biotic and abiotic stresses. Understanding the biochemical, physiological, and environmental phenomena associated with these stresses is essential to increase crop production. This review explores the effect of environmental factors on sucrose content and sugarcane yield and highlights the negative effects of insufficient water supply, temperature fluctuations, insect pests, and diseases. This article also explains the mechanism of reactive oxygen species (ROS), the role of different metabolites under environmental stresses, and highlights the function of environmental stress-related resistance genes in sugarcane. This review further discusses sugarcane crop improvement approaches, with a focus on endophytic mechanism and consortium endophyte application in sugarcane plants. Endophytes are vital in plant defense; they produce bioactive molecules that act as biocontrol agents to enhance plant immune systems and modify environmental responses through interaction with plants. This review provides an overview of internal mechanisms to enhance sugarcane plant growth and environmental resistance and offers new ideas for improving sugarcane plant fitness and crop productivity.

show abstract

Kinetics of metabolism in sugarcane (Saccharum officinarum L.) under heat stress

Cited by 7 publications

References 35 publications

Foliar application of sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, can protect seedlings against heat stress in wheat (Triticum aestivum L.)

Foliar application of sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, can protect seedlings against heat stress in wheat (Triticum aestivum L.)

Photosynthetic traits of Australian wild rice (Oryza australiensis) confer tolerance to extreme daytime temperatures

Factors affecting the production of sugarcane yield and sucrose accumulation: suggested potential biological solutions

Contact Info

Product

Resources

About