Integrated analysis of physiological and metabolic data uncovers essential dynamic mechanisms involved in the maturation of cigar tobacco leaves DOI Creative Commons

Haiying Liu,

Xinwen Chi,

Jinpeng Yang

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Дек. 28, 2024

The quality of cigar tobacco leaves is profoundly affected by the timing their harvest, with both early and late collections resulting in inferior characteristics. While relationship between maturity physiological metabolic processes acknowledged, a comprehensive understanding behavior harvested at different stages remains elusive. This research investigated metabolomic profiles variety CX-014, grown Danjiangkou City, Hubei Province, sampled 35 (T1), 42 (T2), 49 (T3), 56 (T4) days post-inflorescence removal. Leaf color transitioned from green to yellow, accompanied appearance white mature spots. Notable increases photosynthetic pigments gas exchange parameters occurred T1 T2, followed decline T3 T4. optimal sugar-to-nicotine potassium-to-chlorine ratios, critical determinants smoking combustibility, were observed T3, indicating superior chemical balance this stage. Metabolomic analysis revealed 2153 distinct metabolites, most significant changes occurring T2 highlighting transformations during interval. Pathway enrichment via KEGG pinpointed notable shifts amino acid synthesis pathways, particularly those involving tryptophan, alanine, aspartate. Tryptophan metabolism zeatin biosynthesis substantially altered, compounds like indolepyruvic acid, N-formylpurine nucleotide, isopentenyladenine dihydrozeatin showing marked reductions T3. study also explored how lower leaf harvest influences middle leaves, finding that plethora metabolites associated breakdown arachidonic acid—a primitive metazoan signaler implicated plant stress defense networks—were abundant when 43–38 prior. Overall, these findings elucidates complex dynamics maturation, involved essential pathways.

Язык: Английский

Melatonin extends shelf life in postharvest okra via delaying fruit softening and reducing weight loss DOI
Liyu Shi,

Mengze Cao,

Xiaotian Lu

и другие.

Journal of the Science of Food and Agriculture, Год журнала: 2024, Номер 104(15), С. 9506 - 9513

Опубликована: Июль 23, 2024

Abstract BACKGROUND Melatonin, a hormone present in animals and some plants, has garnered attention for its potential preserving harvested produce. Softening due to changes cell wall composition wilting caused by weight loss are the major reasons of commercial value postharvest okra. This study aimed evaluate impact melatonin on softening RESULTS The results revealed that application had significant influence maintenance fruit firmness inhibiting breakdown dissolution polysaccharides suppressing expression specific genes responsible degradation Conversely, treatment positively influenced involved synthesis components. Furthermore, exhibited notable benefits reducing okra, which was accomplished promoting closure stomata – tiny pores surface fruit. CONCLUSION Melatonin could serve as novel approach reduce water loss, delay extend shelf life © 2024 Society Chemical Industry.

Язык: Английский

Процитировано

0
Фитомелатонин как элемент гормональной системы растений DOI

В. В. Кузнецов,

И. А. Бычков,

Н. В. Кудрякова

и другие.

Физиология растений, Год журнала: 2024, Номер 71(4), С. 377 - 397

Опубликована: Ноя. 2, 2024

Язык: Русский

Процитировано

0
Melatonin Affects Peucedanum praeruptorum Vegetative Growth and Coumarin Synthesis by Modulating the Antioxidant System, Photosynthesis, and Endogenous Hormones DOI

Xiaoting Wan,

Yingyu Zhang, Guoyu Wang

и другие.

Journal of Pineal Research, Год журнала: 2024, Номер 76(8)

Опубликована: Ноя. 1, 2024

ABSTRACT The dried root of Peucedanum praeruptorum is often used medicinally and has high pyran‐ furanocoumarin content. Although exogenous melatonin (MT) impacts the regulation plant growth, stress responses, secondary metabolism, etc., it remains unclear whether MT regulates vegetative growth development P. . Thus, aim current study to characterize effects different concentrations on physiological functions, photosynthesis, antioxidant systems, hormone induction, coumarin synthesis Different exert distinct regulatory expression genes related synthesis. Treatment with low increases photosynthesis leaf compared control, while reduce vitality elongation decrease photosynthetic system genes. Low also significantly increase enzyme activity pigment content modulate levels IAA, gibberellic acid, salicylic jasmonic abscisic endogenous MT. Moreover, enzymes tryptophan decarboxylase, hydroxylase, tryptamine‐5‐hydroxylase, serotonin N ‐acetyltransferase, acetylserotonin O ‐methyltransferase, caffeic acid promotes accumulation isoscopoletin, scopoletin, peucedanocoumarin II, praeruptorin A, B, E. upregulates most associated synthesis, including PAL1 , C4H 4CL‐3 C3H‐1 F6H‐1 CCoAMT OMT‐1 CYP71AJ1 CYP84A1‐1 S8H‐1 PT‐1 COSY‐1 These findings demonstrate that may improve promoting components.

Язык: Английский

Процитировано

0
Integrated analysis of physiological and metabolic data uncovers essential dynamic mechanisms involved in the maturation of cigar tobacco leaves DOI Creative Commons

Haiying Liu,

Xinwen Chi,

Jinpeng Yang

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Дек. 28, 2024

The quality of cigar tobacco leaves is profoundly affected by the timing their harvest, with both early and late collections resulting in inferior characteristics. While relationship between maturity physiological metabolic processes acknowledged, a comprehensive understanding behavior harvested at different stages remains elusive. This research investigated metabolomic profiles variety CX-014, grown Danjiangkou City, Hubei Province, sampled 35 (T1), 42 (T2), 49 (T3), 56 (T4) days post-inflorescence removal. Leaf color transitioned from green to yellow, accompanied appearance white mature spots. Notable increases photosynthetic pigments gas exchange parameters occurred T1 T2, followed decline T3 T4. optimal sugar-to-nicotine potassium-to-chlorine ratios, critical determinants smoking combustibility, were observed T3, indicating superior chemical balance this stage. Metabolomic analysis revealed 2153 distinct metabolites, most significant changes occurring T2 highlighting transformations during interval. Pathway enrichment via KEGG pinpointed notable shifts amino acid synthesis pathways, particularly those involving tryptophan, alanine, aspartate. Tryptophan metabolism zeatin biosynthesis substantially altered, compounds like indolepyruvic acid, N-formylpurine nucleotide, isopentenyladenine dihydrozeatin showing marked reductions T3. study also explored how lower leaf harvest influences middle leaves, finding that plethora metabolites associated breakdown arachidonic acid—a primitive metazoan signaler implicated plant stress defense networks—were abundant when 43–38 prior. Overall, these findings elucidates complex dynamics maturation, involved essential pathways.

Язык: Английский

Процитировано

0