Effects of biochar on photosystem function and activities of protective enzymes in Pyrus ussuriensis Maxim. under drought stress

Lyu, Sansan; Du, Guodong; Liu, Zhikun; Zhao, Ling; Lyu, Deguo

doi:10.1007/s11738-016-2236-1

Cited by 74 publications

(46 citation statements)

References 38 publications

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“…Physiological and biochemical functions of plants such as turgor ( Chowdhury et al 2016 ), mesophyll conductance ( Zhou et al, 2013 , Zhou et al, 2014 ), photosynthesis ( Christophe et al, 2011 , Mak et al, 2014 , Osakabe et al, 2014 , Lyu et al, 2016 , Asha et al, 2021 ), transpiration rate ( Asha et al, 2021 ), and relative water content ( Saccardy et al, 1998 , Sanchez-Blanco et al, 2006 ), reduced under drought stress. Soltys-Kalina et al (2016) showed that the 3-week drought treatment decreased the leaf water content of potato cultivars.…”

Section: Introductionmentioning

confidence: 99%

Biochar and Arbuscular mycorrhizal fungi mediated enhanced drought tolerance in Okra (Abelmoschus esculentus) plant growth, root morphological traits and physiological properties

Jabborova

Annapurna

Al-Sadi

et al. 2021

Saudi Journal of Biological Sciences

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Drought is a major abiotic factor limiting plant growth and crop production. There is limited information on effect of interaction between biochar and Arbuscular mycorrhizal fungi (AMF) on okra growth, root morphological traits and soil enzyme activities under drought stress. We studied the influence of biochar and AMF on the growth of Okra ( Abelmoschus esculentus ) in pot experiments in a net house under drought condition. The results showed that the biochar treatment significantly increased plant growth (the plant height by 14.2%, root dry weight by 30.0%) and root morphological traits (projected area by 22.3% and root diameter by 22.7%) under drought stress. In drought stress, biochar treatment significantly enhanced the chlorophyll ‘a’ content by 32.7%, the AMF spore number by 22.8% and the microbial biomass as compared to the control. Plant growth parameters such as plant height, shoot and root dry weights significantly increased by AMF alone, by 16.6%, 21.0% and 40.0% respectively under drought condition. Other plant biometrics viz: the total root length, the root volume, the projected area and root diameter improved significantly with the application of AMF alone by 38.3%, 60.0%,16.8% and 15.9% respectively as compared with control. Compared to the control, AMF treatment alone significantly enhanced the total chlorophyll content by 36.6%, the AMF spore number by 39.0% and the microbial biomass by 29.0% under drought condition. However, the highest values of plant growth parameters (plant height, shoot dry weight, root dry weight) and root morphological traits (the total root length, root volume, projected area, root surface area) were observed in the combined treatment of biochar and AMF treatment viz: 31.9%, 34.2%, 60.0% and 68.6%, 66.6%, 45.5%, 41.8%, respectively compared to the control under drought stress. The nitrogen content, total chlorophyll content and microbial biomass increased over un-inoculated control. The soil enzymes; alkaline phosphatase, dehydrogenase and fluorescein diacetate enzyme activities significantly increased in the combined treatment by 55.8%, 68.7% and 69.5%, respectively as compared to the control under drought stress. We conclude that biochar and AMF together is potentially beneficial for cultivation of okra in drought stress conditions.

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Section: Introductionmentioning

confidence: 99%

Biochar and Arbuscular mycorrhizal fungi mediated enhanced drought tolerance in Okra (Abelmoschus esculentus) plant growth, root morphological traits and physiological properties

Jabborova

Annapurna

Al-Sadi

et al. 2021

Saudi Journal of Biological Sciences

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“…In our study, the opposite trend was observed for CAT activity only, but this activity could not prevent H 2 O 2 content induced by stress. On the other hand, the addition of BC increased SOD activity in response to Co stress, as suggested by Lyu et al (2016) who reported an increase in SOD activity by BC application in drought stress-treated Pyrus ussuriensis. Besides, Wang (2014) reported that the activated SOD connected with inhibition of oxidation-reduction activity of PSI.…”

Section: Discussionmentioning

confidence: 60%

Biochar Triggers Systemic Tolerance Against Cobalt Stress in Wheat Leaves Through Regulation of Water Status and Antioxidant Metabolism

Yildiztugay

Özfidan-Konakçi

Yıldıztugay

et al. 2019

J Soil Sci Plant Nutr

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To eliminate the damages of metal toxicity by reducing metal uptake by plants, organic amendments are useful. The use of carbon-rich materials known as biochar (BC) is a strong candidate to enhance the plant tolerance against stress conditions. The current study examined the effects of BC in wheat hydroponically grown treated with BC (1 and 3 g L −1) alone or in combination with cobalt (Co, 150 and 300 μM). Stress reduced the relative growth rate (RGR), relative water content (RWC), osmotic potential (Ψ Π), and increased proline content (Pro). Besides, endogenous contents of Ca 2+ , K + , and Mn 2+ in leaves decreased under stress. In response to Co stress, a decline in the activities of peroxidase (POX), ascorbate peroxidase (APX), and glutathione reductase (GR) resulted in the induction of hydrogen peroxide (H 2 O 2) content. BC applied with stress decreased endogenous Co 2+ content and increased RGR, RWC, chlorophyll fluorescence and Pro content. Also, the activities of superoxide dismutase (SOD), catalase (CAT), APX and GR were induced and the ascorbate (AsA) and glutathione (GSH) pool and their redox state were maintained by BC application under stress condition. While, with the addition of BC, H 2 O 2 content and lipid peroxidation displayed remarkable decreased, the scavenging activity of hydroxyl radical (OH •) increased as compared to Co stress-treated wheat plants. Besides, in wheat leaves, BC application triggered AsA-GSH pathway including activities of monodehydroascorbate reductase, dehydroascorbate reductase, and the contents of dehydroascorbate, GSH, and GSH/GSSG ratio. The presented results supported the view that biochar under stress could minimize the Co-induced oxidative damages through modulation of the growth, water status, photosynthetic apparatus, and antioxidant enzyme activity found in cellular compartments and ascorbate-glutathione cycle in wheat leaves.

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“…Prosopis biochar at 5 t ha -1 +crop residue mulch at 5 t ha -1 +foliar application of PPFM spray at 500 ml ha -1 on 75 and 90 DAS (B 6 ) maintained relatively higher values compared with other moisture stress management practices. Younis et al (2015) and Lyu et al (2016) reported that biochar positively maintained chlorophyll content under water stress, which is the reason for the stability under this treatment. On the other hand, Sivakumar et al (2017) observed lower values for CSI under severe water stress condition and reported degradation of chlorophyll due to low soil water status in Brinjal.…”

Section: Chlorophyll Stability Index (Csi)mentioning

confidence: 89%

Influence of Biochar, Mulch and PPFM on Stress Physiological Parameters of Cotton under Moisture Stressed Condition

Kannan¹,

Srinivasan²,

Sivakumar³

2019

IJBSM

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Biochar, relative water content, chlorophyll stability index, proline Keywords:The field experiments were conducted at Agricultural College and Research Institute, Madurai during summer and winter irrigated cotton seasons of 2016 and 2016-17. Experiments were laid out in split plot design with three replications. Moisture regimes were assigned to the main plots viz., Irrigation at IW/CPE ratio 0.4 and 0.8. The subplot comprises with moisture stress management practices viz., Cotton stalk biochar @ 5 t ha -1 , Cotton stalk biochar @ 5 t ha -1 +Crop residue mulch @ 5 t ha -1 , Cotton stalk biochar @ 5 t ha -1 +Crop residue mulch @ 5 t ha -1 and PPFM @ 500 ml ha -1 on 75 and 90 DAS, Prosopis biochar @ 5 t ha -1 , Prosopis biochar @ 5 t ha -1 +Crop residue mulch @ 5 t ha -1 , Prosopis biochar @ 5 t ha -1 +crop residue mulch @ 5 t ha -1 and PPFM @ 500 ml ha -1 on 75 and 90 DAS and Control. The stress physiological parameters observed viz., Relative leaf water content, Chlorophyll stability index and Leaf accumulated proline were greatly influenced during moisture stress period. The Maintenance of higher relative water content helps in sustaining the photosynthetic capacity of plants which ultimately contributes to higher yield. In this study higher relative leaf water content, chlorophyll stability index, lower leaf accumulated proline and higher yield of cotton was recorded in irrigation at IW/CPE to 0.8 and Prosopis biochar @ 5 t ha -1 +crop residue mulch @ 5 t ha -1 and PPFM @ 500 ml ha -1 . Abstract V. Kannan

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Effects of biochar on photosystem function and activities of protective enzymes in Pyrus ussuriensis Maxim. under drought stress

Cited by 74 publications

References 38 publications

Biochar and Arbuscular mycorrhizal fungi mediated enhanced drought tolerance in Okra (Abelmoschus esculentus) plant growth, root morphological traits and physiological properties

Biochar and Arbuscular mycorrhizal fungi mediated enhanced drought tolerance in Okra (Abelmoschus esculentus) plant growth, root morphological traits and physiological properties

Biochar Triggers Systemic Tolerance Against Cobalt Stress in Wheat Leaves Through Regulation of Water Status and Antioxidant Metabolism

Influence of Biochar, Mulch and PPFM on Stress Physiological Parameters of Cotton under Moisture Stressed Condition

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