Effect of drought stress on sugar metabolism in leaves and roots of soybean seedlings

Du, Yanli; Zhao, Qiang; Chen, Li–Ru; Yao, Xingdong; Zhang, Wei; Zhang, Bo; Xie, Futi

doi:10.1016/j.plaphy.2019.11.003

Cited by 331 publications

(200 citation statements)

References 59 publications

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“…In the present study, both shade and drought stress limited the growth of soybean cultivars. Increasing the severity of drought stress resulted in a reduction of biomass production in both soybean cultivars which is also supported by earlier research (Du et al 2020). The plant height decreased under drought conditions whereas shade led to a slender stem and increased plant height with the increase being greater in C103 in comparison to N12 which shows that the tolerant variety exhibited less shade avoidance and was not prone to lodging (Wu et al 2017, Hussain et al 2020b.…”

Section: Discussionsupporting

confidence: 80%

Effect of simultaneous shade and drought stress on morphology, leaf gas exchange, and yield parameters of different soybean cultivars

Shafiq¹,

Hussain²,

Hassan³

et al. 2020

Photosynt.

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An interactive effect of simultaneous shade and drought stress on drought-tolerant and drought-sensitive cultivars of soybean was studied. As drought stress intensified, the net photosynthetic rate decreased in both cultivars due to reduced leaf area, relative water content, transpiration rate, stomatal conductance, chlorophyll content, and Rubisco activity which ultimately led to yield reduction. Moreover, the chlorophyll fluorescence parameters also decreased. Interestingly, a moderate shade was found helpful in alleviating the adverse effects of drought stress, specifically in resistant cultivar N12 where seed yield improved significantly under moderate drought conditions in contrast to the cultivar C103. In summary, the effect of drought stress on soybean depended on the irradiance conditions and shade could enhance soybean drought resistance, although this resistance was cultivar dependent. With appropriate cultivar selection, a moderate shade can help optimize yield and improve the performance of drought-exposed soybean.

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Section: Discussionsupporting

confidence: 80%

Effect of simultaneous shade and drought stress on morphology, leaf gas exchange, and yield parameters of different soybean cultivars

Shafiq¹,

Hussain²,

Hassan³

et al. 2020

Photosynt.

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“…Our data indicate that drought stress motivates soluble sugars accumulation in T. hirsuta. Such effects of drought stress on soluble carbohydrate accumulation were also reported by [2,31]. It is suggested that soluble sugars play significant role in the stabilization of cell membranes and proteins and improve plant tolerance during drought stress.…”

Section: Thymelaea Growing At Up-stream Of Wadisupporting

confidence: 61%

Genetic and Biochemical Studies of Thymelaea hirsuta L. Growing Naturally at the North Western Coast of Egypt

Maboud

Zayat

2020

IJPSS

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This study aims to elucidate the biochemical and genetic behaviors of Thymelaea hirsuta L. growing naturally at the following habitats; ooletic sand dunes, slope of salt marshes, non-saline depression, road side, plateau, upstream of Wadi Halazeen, and wadi bed of Wadi Halazeen along the western Mediterranean coast of Egypt. Soil and plant samples were collected in May, 2017. Water content recorded the highest value in Thymelaea growing at slope of salt marshes. Total soluble carbohydrate attained the highest value in Thymelaea growing at up-stream of Wadi Halazeen while the highest values in none-souble carbohydrate and proline were observed in plants growing at ooletic sand dunes. Total carbohydrate recorded the highest value in Thymelaea growing at plateaue. Total lipids and total phenols attained the highest content in Thymelaea growing at wadi bed. Genetically, ISSR & SRAP molecular markers were done. Seven ISSR and four SRAP primes produced 73.78% and 68.57% of polymorphism, respectively. PIC value, assay efficiency index, effective multiples ratio and marker index, were higher in SRAP than in ISSR.

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“…In X32, we found that drought inhibited biomass accumulation in leaves and stems more than in roots, resulting in higher R/S in the PEG-treated sweet potato ( Figure 1 and Figure 3 , as shown in Figure 14 ), consistent with reports in rice under drought stress [ 16 ]. Increased R/S in X32 can be an adaptation trait for crops to increase drought tolerance, because maintaining an effective root system can help to increase water uptake and reduce water loss to cope with drought stress [ 31 ]. In our previous study, it was also observed that X32 could make up for part of the loss of yield reduction through its own variety attribute (high yield) under drought stress, even though X32 and N1 belonged to low-resistant varieties [ 32 ].…”

Section: Discussionmentioning

confidence: 99%

Drought-Induced Responses of Nitrogen Metabolism in Ipomoea batatas

Xia

Zhang

et al. 2020

Plants

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This study investigated the effect of water stress, simulated by the polyethylene glycol (PEG-6000) method, on nitrogen (N) metabolism in leaves and roots of hydroponically grown sweet potato seedlings, Xushu 32 (X32) and Ningzishu 1 (N1). The concentrations of PEG-6000 treatments were 0%, 5% and 10% (m/v). The results showed that the drought-treated plants showed a decline leaf relative water content, and revealed severe growth inhibition, compared with the 0% treatment. Under drought stress, the decline in biomass of the leaf and stem was more noticeable than in root biomass for X32, leading to a higher root to shoot ratio. Drought stress increased the nitrate nitrogen (NO3−-N) and protein in leaves, but reduced all the activities of N-metabolism enzymes and the transcriptional levels of nitrate reductase (NR), glutamine synthetase (GS) and glutamate synthase (GOGAT); in roots, NO3−-N and NR had opposite trends. The leaf ammonium nitrogen (NH4+-N), GS and amino acid had different trends between X32 and N1 under drought stress. Furthermore, the transcriptional level of nitrate transporter genes NRT1.1 in leaves and roots were upregulated under drought stress, except in N1 roots. In conclusion, NR determined the different response to drought in leaves for X32 and N1, and GS and GOGAT determined the response to drought in roots, respectively.

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Effect of drought stress on sugar metabolism in leaves and roots of soybean seedlings

Cited by 331 publications

References 59 publications

Effect of simultaneous shade and drought stress on morphology, leaf gas exchange, and yield parameters of different soybean cultivars

Effect of simultaneous shade and drought stress on morphology, leaf gas exchange, and yield parameters of different soybean cultivars

Genetic and Biochemical Studies of Thymelaea hirsuta L. Growing Naturally at the North Western Coast of Egypt

Drought-Induced Responses of Nitrogen Metabolism in Ipomoea batatas

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