Melatonin enhances the low-temperature combined low-light tolerance of pepper (Capsicum annuum L.)seedlings by regulating photosynthesis, carotenoid, and hormone metabolism (Record no. 55095)

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control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625162459.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-21017
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245 10 - TITLE STATEMENT
Title Melatonin enhances the low-temperature combined low-light tolerance of pepper (Capsicum annuum L.)seedlings by regulating photosynthesis, carotenoid, and hormone metabolism
490 0# - SERIES STATEMENT
Volume/sequential designation Environmental and Experimental Botany, 199, p.104868, 2022
520 3# - SUMMARY, ETC.
Summary, etc. Low temperature combined with low light (LL)is severe abiotic stress to plant growth and yield. However, little is known about the physiological mechanisms of the melatonin (MT)involved in the adaptation of pepper (Capsicum annuum L.)to LL. In this study, pepper seedlings subjected to LL stress (15 ?/5 ?, 100 µmol photons m?2 s?1)were pre-sprayed with 200 µmol L?1 MT to investigate the protective role of MT in photosynthesis, carotenoid metabolism, as well as hormones of pepper (Capsicum annuum L.)seedling. Our results indicated that the application of exogenous MT reduced the negative effect on plant growth inhibition of pepper seedlings caused by LL stress, significantly increased chlorophyll contents and photosynthetic capacity as result of improved photosynthesis rate, upregulated the relative expressions of PS? reaction center proteins genes (CaPsb A, CaPsb B, CaPsb C, and CaPsb S), reduced NPQ, 1-qP, and qN, as well as increased Fv/Fm, qP, Y(?), and electron transport rate (ETR)after 7 days. In addition, MT significantly enhanced abscisic acid metabolism and biosynthesis of indoleacetic acid, gibberellin 3, and zeatin-type cytokinins after 6 h, 12 h, 24 h, 48 h, and 168 h. Markedly, MT increased the contents of zeaxanthin, which is induced by the down-regulation of CaZEP, by 149.55 percent. Our findings confirmed the mitigating potential of MT application for LL stress by maintaining plant growth, improving the photosynthetic characteristics, regulating carotenoids, and hormone metabolism.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element MELATONIN
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PHOTOSYNTHESIS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CAROTENOID COMPOSITIONS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element HORMONE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element LOW-TEMPERATURE COMBINED WITH LOW-LIGHT
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element TOLERANCE
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Li, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Ding, D.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Li, N.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Xie, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Yu, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Lyv, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Zhang, J.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/open?id=1MbY8u6kzlftQ_dwbW2fJYkKQemplhfm4&usp=drive_copy">https://drive.google.com/open?id=1MbY8u6kzlftQ_dwbW2fJYkKQemplhfm4&usp=drive_copy</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-21017 25.06.2025 25.06.2025 Documentos solicitados