Results 31 to 40 of about 5,905,925 (280)

Growth Regulation by Macrophages [PDF]

open access: yes, 1982
The evidence reviewed here indicates that macrophages, either acting alone or in concert with other cells, influence the proliferation of multiple types of cells. Most of the data indicate that these effects are mediated by soluble macrophage-elaborated products (probably proteins) although the role of direct cell-to-cell contacts cannot be ruled out ...
Wharton, W., Walker, E., Stewart, C.C.
openaire   +2 more sources

Construction and application of star polycation nanocarrier-based microRNA delivery system in Arabidopsis and maize

open access: yesJournal of Nanobiotechnology, 2022
Background MicroRNA (miRNA) plays vital roles in the regulation of both plant architecture and stress resistance through cleavage or translation inhibition of the target messenger RNAs (mRNAs).
Jia Yang   +7 more
doaj   +1 more source

GROWTH-REGULATING FACTORS Interact with DELLAs and Regulate Growth in Cold Stress [PDF]

open access: yesThe Plant Cell, 2020
DELLA proteins are repressors of the gibberellin (GA) hormone signaling pathway that act mainly by regulating transcription factor activities in plants. GAs induce DELLA repressor protein degradation and thereby control a number of critical developmental processes as well as responses to stresses such as cold.
Ourania Lantzouni   +3 more
openaire   +3 more sources

Ethephon Reduces Maize Nitrogen Uptake but Improves Nitrogen Utilization in Zea mays L.

open access: yesFrontiers in Plant Science, 2022
Increasing use of plant density or/and nitrogen (N) application has been introduced to maize production in the past few decades. However, excessive planting density or/and use of fertilizer may cause reduced N use efficiency (NUE) and increased lodging ...
Yushi Zhang   +14 more
doaj   +1 more source

Responses of Succeeding Wheat to Cotton Harvest-Aid Application and Biochar Amendment

open access: yesAgronomy
Chemical harvest aids facilitate mechanical cotton harvesting, but their potential carryover effects on succeeding wheat remain uncertain. Two independent site-year field experiments were conducted in Beijing during 2021–2022 and in Hejian, Hebei ...
Xinghua Yu   +8 more
doaj   +1 more source

Relationships between Plant Architecture Traits and Cotton Yield within the Plant Height Range of 80–120 cm Desired for Mechanical Harvesting in the Yellow River Valley of China

open access: yesAgronomy, 2019
Mechanical harvesting has become inevitable for cotton production in China due to the rising labor cost in the country. It usually requires a moderate plant height and compact plant architecture.
Wei Yan   +13 more
doaj   +1 more source

Coronatine-Induced Maize Defense against Gibberella Stalk Rot by Activating Antioxidants and Phytohormone Signaling

open access: yesJournal of Fungi, 2023
One of the most destructive diseases, Gibberella stalk rot (GSR), caused by Fusarium graminearum, reduces maize yields significantly. An induced resistance response is a potent and cost-effective plant defense against pathogen attack.
Mei Liu   +7 more
doaj   +1 more source

Giving maize an excited start – Effects of dopamine on maize germination

open access: yesJournal of Integrative Agriculture, 2020
Dopamine (DA) is a neurotransmitter which takes charge of brain activities about memory and self-stimulation behavior in animals. Interestingly, our results suggest that DA could also give maize an “excited state”.
Hang-yuan CHENG   +6 more
doaj   +1 more source

Effects of thidiazuron and methyl jasmonate tank mixes on cotton defoliation and the underlying phytohormonal mechanisms

open access: yesJournal of Cotton Research
Background Thidiazuron (TDZ) is a widely used chemical defoliant in commercial cotton production and is often combined with the herbicide Diuron to form the commercial defoliant mixture known as TDZ·Diuron (T·D, 540 g·L-1 suspension).
Zexin Wei   +11 more
doaj   +1 more source

Foliar spray of prohexadione-calcium improves the adaptability of mung bean to saline-alkali stress

open access: yesFrontiers in Plant Science
IntroductionSaline-alkali soils are a major constraint to mung bean cultivation and extension, and prohexadione-calcium (Pro-Ca) can enhance plant tolerance to saline-alkali stress.MethodsIn order to explore the regulatory effect and mechanism of Pro-Ca ...
Xilong Liang   +19 more
doaj   +1 more source

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