Allocation patterns of nonstructural carbohydrates in response to CO2 elevation and nitrogen deposition in Cunninghamia lanceolata saplings

Zheng, Wenhui; Li, Renshan; Yang, Qingpeng; Zhang, Weidong; Huang, Ke; Guan, Xiao; Chen, Longchi; Yu, Xin; Wang, Qingkui; Wang, Silong

doi:10.1007/s11676-022-01533-x

Cited by 8 publications

(5 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The positive effect of shading on NSC accumulation in twigs could be interpreted for the following reasons. Firstly, foliage augmented the NSC translocation to twigs to ensure the subsequent twig elongation, thereby facilitating the maximum space occupation and light‐harvesting for light‐demanding larch under C stress (Li et al, 2018b; Zheng et al, 2023). Secondly, twigs can act as a “bridge” (Hoch et al, 2002), performing a buffer function between organs assimilating C (foliage) and consuming C (stems and roots) to reduce the costs of NSC transportation under C stress (Dietze et al, 2014; He et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Carbon stress causes preferential storage over growth in treeline trees

He,

Shi,

et al. 2024

Physiologia Plantarum

View full text Add to dashboard Cite

Non‐structural carbohydrates (NSCs) play an important functional role in determining plant survival as a backup carbon (C) source, while they also represent a large C sink being traded off against other C sinks when facing stress. However, information regarding how such trade‐offs in C allocation under C stress vary among species remains limited. Here, we experimentally induced C stress in juveniles of three tree species by exposing them to in situ artificial shading, and then we quantified the dynamics of whole‐tree C allocation patterns between storage and growth. For light‐demanding deciduous conifer larch and shade‐intolerant deciduous broad‐leaved birch, tree growth (represented by relative tree height growth (RHG) and relative basal area increment (RBAI)) was significantly reduced by shading, whereas for shade‐tolerant evergreen conifer fir, RHG and RBAI remained constant. Variations of whole‐tree NSC reserves were consistent for non‐treeline tree species (i.e., birch and fir), showing that shading remarkably reduced NSC storage. In contrast, shading‐induced NSC accumulation was found only in treeline tree species (i.e., larch). More importantly, C allocation to NSC storage was prioritized over structural growth only in larch under C stress, suggesting a strong trade‐off between survival and growth in treeline trees. Overall, our results discovered different patterns of C allocation in response to C stress across species with different plant functional types, further highlighting the highly conservative survival strategy of treeline tree species. Our study may contribute to an enhanced understanding of how forest biomes mitigate the negative impacts of stressful events in the context of global changes.

show abstract

Section: Discussionmentioning

confidence: 99%

Carbon stress causes preferential storage over growth in treeline trees

He,

Shi,

et al. 2024

Physiologia Plantarum

View full text Add to dashboard Cite

show abstract

“…A elevação na concentração de dióxido de carbono atmosférico inicialmente induz a uma maior eficiência fotossintética, resultando em um aumento na produção de açúcares e outros compostos orgânicos essenciais para o crescimento vegetal (YAMAGUCHI et al, 2023). No entanto, existe uma forte tendência de limitação desse efeito, uma vez que o fornecimento de nutrientes essenciais, especialmente nitrogênio ou fósforo, pode não acompanhar o desenvolvimento (ZHENG et al, 2023). Além disso, a forte associação existente entre a elevação na concentração de gases de efeito estufa com o aumento de temperatura pode reduzir significativamente a produção de biomassa e acúmulo de assimilados de certas espécies (LI; JIANG; LIU, 2016).…”

Section: Metabolismo Das Plantasunclassified

Impactos De Mudanças Climáticas Para a Fisiologia E Morgologia Vegetal E À Sociedade

Alves,

Bezerra,

Lima

et al. 2024

RAmb.

View full text Add to dashboard Cite

Diante dos expressivos desequilíbrios climáticos observados atualmente, torna-se uma necessidade revisar os impactos destas mudanças nas plantas, abordando os efeitos fisiológicos e morfológicos decorrentes de alterações nas condições atmosféricas. O aumento gradativo de gases de efeito estufa lançados diariamente na atmosfera, que se fez maior no período pós revolução industrial, afeta a fotossíntese e o crescimento das plantas, além de trazer problemas como o aumento da temperatura ao redor do mundo e crises hídricas que assolam os mais diversos países e biomas. Podemos ressaltar ainda, que o impacto de fenômenos climáticos como El Niño aflige as mais diversas culturas agrícolas, causando doenças nas plantas e perda de qualidade dos grãos. Além disso, o aumento da temperatura afeta a produtividade das plantas, enquanto a seca intensa altera ecossistemas e biomas, podendo levar à desertificação. A partir disso, foi elaborada uma revisão de literatura, com o objetivo de discutir fatores científicos que destacam a conexão intrínseca existente entre as mudanças climáticas e os seus resultados sob a biodiversidade e qualidade de vida urbana. Com isso, o estudo visa destacar a necessidade de mais pesquisas para enfrentar os desafios iminentes e garantir a sustentabilidade ambiental e alimentar. E por fim, o presente artigo pode concluir que há uma necessidade de ações urgentes, tanto biotecnológicas quanto políticas, que atuem de maneira eficaz sobre o meio ambiente visando mitigar os impactos das mudanças climáticas e preservar a biodiversidade.

show abstract

“…

There are several different cultivars of guar bean (Cyamopsis tetragonoloba L.) plant, cultivated primarily in India and Pakistan, as well as in the United States to a lesser extent (Mudgil et al, 2014). In plants, carbohydrates produced by photosynthesis are well known for their essential role as rich sources of energy and carbon skeletons for organic compounds and storage components (Zheng et al, 2023).The GG is a polysaccharide soluble in cold water and derives from the endosperm of the guar plant by extracting its endosperm (Prem et al, 2005). There are mainly three types of polysaccharides in the GG, with a molecular weight range from 50,000 to 8,000,000 Da (Mahmoud, 2000).

…”

mentioning

confidence: 99%

“…There are several different cultivars of guar bean (Cyamopsis tetragonoloba L.) plant, cultivated primarily in India and Pakistan, as well as in the United States to a lesser extent (Mudgil et al, 2014). In plants, carbohydrates produced by photosynthesis are well known for their essential role as rich sources of energy and carbon skeletons for organic compounds and storage components (Zheng et al, 2023).…”

mentioning

confidence: 99%

Application of guar (Cyamopsis tetragonoloba L.) gum in food technologies: A review of properties and mechanisms of action

Tahmouzi,

Meftahizadeh,

Eyshi

et al. 2023

Food Science & Nutrition

View full text Add to dashboard Cite

With the world continuing to push toward modernization and the consumption of processed foods growing at an exponential rate, the demand for texturizing agents and natural additives has also risen as a result. It has become increasingly common to use thickening agents in food products to modify their rheological and textural properties and enhance their quality characteristics. They can be divided into (1) animal derived (chitosan and isinglass), (2) fermentation produced (xanthan and curdlan), (3) plant fragments (pectin and cellulose), (4) seaweed extracts (agar and alginate), and (5) seed flours (guar gum and locust bean gum). The primary functions of these materials are to improve moisture binding capacity, modify structural properties, and alter flow behavior. In addition, some have another responsibility in the food sector, such as the main ingredient in the delivery systems (encapsulation) and nanocomposites. A galactomannan polysaccharide extracted from guar beans (Cyamopsis tetragonolobus), known as guar gum (GG), is one of them, which has a wide range of utilities and possesses popularity among scientists and consumers. In the world of modernization, GG has found its way into numerous industries for use in food, cosmetics, pharmaceuticals, textiles, and explosives. Due to its ability to form hydrogen bonds with water molecules, it imparts significant thickening, gelling, and binding properties to the solution as well as increases its viscosity. Therefore, this study is aimed to investigate the characteristics, mechanisms, and applications of GG in different food technologies.

show abstract

Allocation patterns of nonstructural carbohydrates in response to CO2 elevation and nitrogen deposition in Cunninghamia lanceolata saplings

Cited by 8 publications

References 56 publications

Carbon stress causes preferential storage over growth in treeline trees

Carbon stress causes preferential storage over growth in treeline trees

Impactos De Mudanças Climáticas Para a Fisiologia E Morgologia Vegetal E À Sociedade

Application of guar (Cyamopsis tetragonoloba L.) gum in food technologies: A review of properties and mechanisms of action

Contact Info

Product

Resources

About