Auxins in potato: molecular aspects and emerging roles in tuber formation and stress resistance

Kolachevskaya, Oksana O.; Lomin, Sergey N.; Arkhipov, Dmitry V.; Romanov, Georgy A.

doi:10.1007/s00299-019-02395-0

Cited by 68 publications

(47 citation statements)

References 137 publications

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“…5C). This was consistent with the observation that IAA, ABA, CKs and sucrose are positive modulators of tuberization in potato [48], while GA, ethylene and biotic stress suppress this process [53][54][55].…”

Section: Discussionsupporting

confidence: 91%

“…It has been reported that the rhizobacteria of potato accelerated tuberization through increasing lipoxygenase gene expression [22]. The increase in photosynthesis helps to accumulate more carbohydrates, like sucrose and starch, which can promote the initiation, formation and growth of tubers [48,56]. The downregulated OTUs showed more positive correlations with responses to GAs, ethylene, or biotic stresses (Fig.…”

Section: Discussionmentioning

confidence: 88%

“…The rotation of potato and legumes can signi cantly increase the abundance of anaerobic nitrogen-xing bacteria in the soil, accompanied by a marked increase in the tuber yield of potato, compared to continuous potato cropping [47]. PGPR can produce various phytohormones, like IAA, CKs, and ABA, which are necessary for the initiation and development of tubers in many tuberous plants [48]. It has been reported that phytohormones have decisive roles in tuber formation of various tuberous plant.…”

Section: Discussionmentioning

confidence: 99%

“…It has been reported that phytohormones have decisive roles in tuber formation of various tuberous plant. For examples, GAs have a negative effect on the induction, growth, and maturation of tubers, while CKs have a positive in uence on them [48,49]. Appropriate IAA concentrations play an important role in promoting tuber initiation and nal tuber size, at which point the mature tubers cease growth processes and transition to dormancy in the presence of ABA [49].…”

Section: Discussionmentioning

confidence: 99%

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Soil bacterial communities associated with stony soils influence the tuber size of Tetrastigma hemsleyanum

Guo¹,

Hong²,

Zhang³

et al. 2020

Preprint

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Background Plants grown in stony soils have better-developed root systems and higher crop yields than those grown in non-stony soils. The roles of various physical and chemical effects of stony soils on plant growth have been published, but the roles of soil microbiota and rhizosphere microbiota have not been investigated. Methods Tetrastigma hemsleyanum plants were cultivated for two years in stony soils and in the same soil from which rock-fragments had been removed. The microbiome and the tuber transcriptome were analyzed, using multiple bioinformatics methods. Results The soil microbiota of these two soils were markedly different, and the stony soils contained high abundances of bacterial taxa belonging to the Actinobacteria, Rokubacteria, Rhizobiales, Desulfarculaceae, and Chthoniobacteraceae. These discriminatory taxa in soils may promote the tuber growth of T. hemsleyanum, through releasing nutrients from rocks and colonizing the rhizosphere and tuber surface of T. hemsleyanum. In addition, stony soils induced a dramatic change in the tuber’s transcriptome, particularly with respect to the pathways of phytohormone biosynthesis, photosynthesis, and biotic stress resistance, expression levels of which showed strong correlations with the aforementioned bacterial taxa. Conclusions These results indicated that beneficial effects of stony soils on plant growth may be closely correlated with their specific microbiota, which can, in turn, influence multiple biological processes of host. This is the first study to reveal the role of stony soils-driven microbiota in tuber growth, and stony soils can represent a microbial repository for the screening of microbial isolates to increase plant yield.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Soil bacterial communities associated with stony soils influence the tuber size of Tetrastigma hemsleyanum

Guo¹,

Hong²,

Zhang³

et al. 2020

Preprint

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“…Endogenous phytohormones are also closely related to the initiation and development of tuberous roots. The synergistic actions of various phytohormones finally result in the bulking of tuberous roots, such as auxin (IAA), cytokinins (CKs), abscisic acid (ABA), gibberellin (GAs), ethylene and jasmonic acid (JA) [11].Auxins can be considered as a general coordinator of growth and development, who play an important role in tuberization and stress resistance [12], proliferation of metaxylem and cambium cells, cell expansion [13]. CKs control numerous developmental processes throughout the plant life cycle, including gametogenesis, root meristem specification, vascular development, shoot and root growth, meristem homeostasis, senescence, and so on [14].…”

Section: Introductionmentioning

confidence: 99%

Comparative transcriptome analysis of roots at different development stages reveals the mechanism of root expansion of Callerya speciosa Champ.

Yao

Lan

Huang

et al. 2019

Preprint

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Background Callerya speciosa Champ., a perennial shrub medicinal plant of Fabaceae, is one of the most commonly used in traditional Chinese medicine and food that has been widely cultivated in South China. The tuberous roots of C. speciosa transferred from fibrous roots but few fibrous roots can transfer into tuberous roots. To date, the underlying mechanisms for tuberous root formation and development of C. speciosa have not yet been elucidated.

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Increasing the seed production efficiency of autumn potato with plant growth regulators

Singh,

Aulakh,

Sidhu

2024

Crop Science

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Higher productivity of seed‐size tubers is a significant issue in seed potato (Solanum tuberosum) production systems. Punjab, in northwest India, is the hub of seed potato production and supplies 60% seed requirement of the country. However, to improve the productivity of seed‐size (3.5–4.5 cm) tubers, research trials were run at Ludhiana for 2 years (autumn 2019 and 2020) to examine the effectiveness of plant growth regulators in enhancing the growth and yield of seed potatoes. The experimental trial with 11 growth regulation treatments—control (water spray), IBA (indole‐3‐butyric acid) (100 mg/L), IBA (200 mg/L), NAA (1‐naphthaleneacetic acid) (25 mg/L), NAA (50 mg/L), ethrel (25 mg/L), ethrel (50 mg/L), GA3 (gibberellic acid) (100 mg/L), GA3 (200 mg/L), jeevamrit, and waste decomposer—was laid out in a randomized complete block design with three replications. GA3 (200 mg/L) applied at 45 and 60 days after sowing, resulted in significantly higher seed and total tuber yields than all other growth regulation treatments. It produced 34.9% and 31.5% higher total tuber yields as compared to the untreated control. However, it had no significant impact on undersized and small‐sized tuber yield and number. GA3 at a concentration of 200 mg/L yielded the highest seed production efficiency of 51.7% and 38.9% compared to the control. This underscores the significance of precise application concentrations in controlling both seed yield and size.

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Auxins in potato: molecular aspects and emerging roles in tuber formation and stress resistance

Cited by 68 publications

References 137 publications

Soil bacterial communities associated with stony soils influence the tuber size of Tetrastigma hemsleyanum

Soil bacterial communities associated with stony soils influence the tuber size of Tetrastigma hemsleyanum

Comparative transcriptome analysis of roots at different development stages reveals the mechanism of root expansion of Callerya speciosa Champ.

Increasing the seed production efficiency of autumn potato with plant growth regulators

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