Results 41 to 50 of about 60,426 (294)

Apple Leaf Senescence: Leaf Disc Compared to Attached Leaf [PDF]

open access: yesPlant Physiology, 1973
Attached apple leaves (Pyrus malus L., Golden Delicious) began to lose protein in early August as the first sign of senescence. Apple leaf discs prepared from samples before early August gained protein for up to 7 days after detachment. After early August, the loss of protein from leaf discs was no greater than the loss from attached leaves in 7 days ...
P W, Spencer, J S, Trrus
openaire   +2 more sources

A WRKY transcription factor, TaWRKY42-B, facilitates initiation of leaf senescence by promoting jasmonic acid biosynthesis

open access: yesBMC Plant Biology, 2020
Background Leaf senescence comprises numerous cooperative events, integrates environmental signals with age-dependent developmental cues, and coordinates the multifaceted deterioration and source-to-sink allocation of nutrients. In crops, leaf senescence
Ming-Ming Zhao   +7 more
doaj   +1 more source

Ring/U-Box Protein AtUSR1 Functions in Promoting Leaf Senescence Through JA Signaling Pathway in Arabidopsis

open access: yesFrontiers in Plant Science, 2020
Leaf senescence is regulated by a large number of internal and environmental factors. Here, we report that AtUSR1 (U-box Senescence Related 1) which encodes a plant Ring/U-box protein, is involved in age-dependent and dark-induced leaf senescence in ...
Zenglin Zhang, Mengmeng Xu, Yongfeng Guo
doaj   +1 more source

Regulation of Arabidopsis Matrix Metalloproteinases by Mitogen-Activated Protein Kinases and Their Function in Leaf Senescence

open access: yesFrontiers in Plant Science, 2022
Leaf senescence is a developmentally programmed cell death process that is influenced by a variety of endogenous signals and environmental factors. Here, we report that MPK3 and MPK6, two Arabidopsis mitogen-activated protein kinases (MAPKs or MPKs), and
Hongjiao Wu   +5 more
doaj   +1 more source

A specific group of genes respond to cold dehydration stress in cut Alstroemeria flowers whereas ambient dehydration stress accelerates developmental senescence expression patterns [PDF]

open access: yes, 2010
Petal development and senescence entails a normally irreversible process. It starts with petal expansion and pigment production, and ends with nutrient remobilization and ultimately cell death.
Rogers, H.   +28 more
core   +1 more source

Arabidopsis FHY3 and FAR1 Function in Age Gating of Leaf Senescence

open access: yesFrontiers in Plant Science, 2021
Leaf senescence is the terminal stage of leaf development. Both light and the plant hormone ethylene play important roles in regulating leaf senescence.
Yurong Xie   +9 more
doaj   +1 more source

Overexpression of a NAC transcription factor delays leaf senescence and increases grain nitrogen concentration in wheat [PDF]

open access: yes, 2015
Increasing the duration of leaf photosynthesis during grain filling using slow-senescing functional stay-green phenotypes is a possible route for increasing grain yields in wheat (Triticum aestivum L.).
Zhao, D.   +8 more
core   +1 more source

Transcription Factor NAC075 Delays Leaf Senescence by Deterring Reactive Oxygen Species Accumulation in Arabidopsis

open access: yesFrontiers in Plant Science, 2021
Leaf senescence is a highly complex genetic process that is finely tuned by multiple layers of regulation. Among them, transcriptional regulation plays a critical role in controlling the initiation and progression of leaf senescence.
Chengcheng Kan   +9 more
doaj   +1 more source

Lipid transporter LSR1 positively regulates leaf senescence in Arabidopsis

open access: yesPlant Signaling & Behavior, 2022
Senescence is the final stage in the life history of a leaf, whereby plants relocate nutrients from leaves to other developing organs. Recent efforts have begun to focus on understanding the network-based molecular mechanism that incorporates various ...
Guanping Feng, Yihui Zhong, Wenying Zou
doaj   +1 more source

Strigolactone and Ethylene Inhibitor Suppressing Dark-induced Leaf Senescence in Perennial Ryegrass Involving Transcriptional Downregulation of Chlorophyll Degradation

open access: yesJournal of the American Society for Horticultural Science, 2021
Accelerated or premature leaf senescence induced by dark conditions could be associated with chlorophyll degradation and regulated by hormones. To study the effects of strigolactone (SL) on dark-induced leaf senescence and to examine the interaction ...
Qiannan Hu   +5 more
doaj   +1 more source

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