#phytohormones

[coma-adult]

Some phytohormones and alkaloids from my sleep deprived pre-exam self today. I'm trying to make my notes more minimalistic, because i tend to make them way too detailled. Let's see how it goes.

[teepeecider]

Now the fruitlets have passed though fruit set they enter the early growth or cell division phase which lasts for approximately 4 to 6 weeks after full bloom (AFB), and is critical for determining the potential of the apple.Successful fertilisation of the ovules leading to seed development triggers the swelling of the fruit flesh from the hypanthium which will form the bulk of the edible apple flesh. This is because of the production of phytohormones from the developing seeds specifically auxins (and gibberellins. These hormones are essential for driving rapid cell division -mitosis in the young fruit. Hence if some of the seeds in the apple fail to form the overlying flesh is grows poorly and the fruit is wonky shaped. High auxin levels also maintain the connection to the parent plant at the abscission layer preventing early fruitlet drop. The energy demand is extremely high with high respiration rates as the fruit is actively dividing cells. #fruit #fruitlets #phytohormones #orchard #apples #pears #auxin #gibberellins

[ijtsrd]

A Review on Plant Growth Promoting Bacteria Ameliorating Salinity Stress

by Metaliya Divya | Bhadaniya Nidhi | Patel Aakruti | Rathod Zalak. R | Saraf Meenu S "A Review on Plant Growth Promoting Bacteria Ameliorating Salinity Stress"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021,

URL: https://www.ijtsrd.com/papers/ijtsrd38531.pdf

Paper Url: https://www.ijtsrd.com/biological-science/microbiology/38531/a-review-on-plant-growth-promoting-bacteria-ameliorating-salinity-stress/metaliya-divya

callforpaperpapersinjournals, specialissuepublication, multidisciplinaryjournal

Salinity is a biotic stress which is constraint for the plant growth and development, putting agriculture productivity and food security under stress globally. Potential use of plant growth promoting bacteria PGPB ameliorating the salinity stress through number of mechanisms evoking multipronged physiological, biochemical and molecular responses. By developing the novel inoculum for saline soil based on the recent studies concepts can be a sustainable approach in ameliorating productivity of affected agricultural land and food by simultaneously remediating salinity affected agricultural land. The metabolic and genetic properties of the PGPB have direct role in eliminating the harmful effect of salinity. Various mechanism of PGPB includes modification in cell wall cell membrane, development of various enzymes, production of protein performing various metabolic function, production of osmolytes, siderophore production, improving the level of phytohormones auxin, ethylene, cytokinin, abscisic acid, gibberellin , Exopolysaccharide EPS production. In spite of overwhelming advantages exact mechanism of PGPB ameliorating saline stress is not known so it is field to further investigate. 

[microscopiaiwm]

PHYTOHORMONES

By: N. Shreya Mohan (MSIWM042) Plant hormone, also known as phytohormones are signal mediated molecules produced by plants commonly controlling plant growth aspects such as defense mechanisms, stress tolerance, metabolism, reproduction and size. Hormones are elated within the plant by utilizing four types of movements. For localized movement, cytoplasmic streams within cells where delayed…

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[crimson-publishers-reviews-stuff]

Role of Plant Growth Regulators in the Insect Pest Control: A Quick Outlook_Crimson Publishers

Role of Plant Growth Regulators in the Insect Pest Control: A Quick Outlook by Karem Ghoneim* in COJ Reviews & Research_ Environmental Protection 

According to Environmental Protection Agency, a plant growth regulator (PGR) is defined as “any substance or mixtures of substances intended, through physiological action, to accelerate or retard the rate of growth or maturation or otherwise alter the behavior of plants Yau [1] & Mahajan [2]. As reported in the current literature, five principal categories of PGRs are recognized in plants: Auxins (Auxs), Gibberellins (GAs), Cytokinins (CKs), Ethylene (ET), and Abscisic acid (ABA). They are known to be produced in higher plants. In addition to these categories, two other categories appear to be active, in some cases, for regulating the plant growth: the brassinosteroids (BRs) and polyamines (POA) Naqvi [3]. Over 70 years, Aux, GAs, CKs, ABA and ET were considered as the main groups of phytohormones (for a review, see Kende & Zeevaart [4] and Hopkins & Hüner [5] classified the plant hormones (or PGRs) into five classes: GAs, Auxs, ET, CKs, ABA and BRs. In their review, Ogunyale et al. [6] classified PGRs in five major classes: Auxs, CKs, GAs, ET and ABA

https://crimsonpublishers.com/cojrr/fulltext/COJRR.000520.php

  For more open access journals in Crimson Publishers please click on https://crimsonpublishers.com/

 For more articles in COJ Reviews & Research please click on https://crimsonpublishers.com/cojrr/

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[wemdashikurfan-blog]

Interactive defense responses of Arabidopsis thaliana to phloem feeding and leaf chewing insects —…

Robert O. Okayo, George O. K’Otuto, Fredrick O. Ouma Department of Plant Animal and Food Sciences, Jaramogi Oginga Odinga University of Science and Technology, Bondo, Kenya Department of Applied Plant Sciences, Maseno University, Kenya Key words: Arabidopsis thaliana, Crosstalk, Phytohormones, Pluetella xylostella, Brevicoryne brassicae

Plants activate defense signaling pathway depending on the feeding guild of the attacking herbivores. Usually two signaling pathways namely, Salicylic acid (SA), Jasmonic acid (JA), mediate plant responses to insect attacks. When attacked by multiple herbivores, the two signaling interact in ways whose outcome may be complicated. To investigate this cross talk phenomenon we infested wild type and SA insufficient mutant plant types of Arabidopsis thaliana L. with only Pluetella xylostella L. caterpillars, only adult Brevicoryne brassicae L. aphids and with both caterpillars and aphids. We analyzed the insect performances and the underlying defense mechanisms in the plant via expression levels of the marker genes for JA (LOX2) and SA (PR1).

[botanytoo]

Asymmetric responses of the woody poplar taproot axis to bending stress

Asymmetric responses of the woody poplar taproot axis to bending stress

Mechanical bending stress can result in cell wall strengthening and increased wood formation across root axes together with an attendant asymmetrical accumulation of phytohormones. De Zio et al. show how different mechanical force intensities act across the compressed concave and stretched convex sides of the woody bent poplar taproot. Model summarizing the main anatomical, phytohormonal and…

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[awesome-facts]

A new Awesome Post has been published on Awesome Facts

New Post has been published on http://awesome-facts.net/how-does-leaf-position-affect-phytohormones/

How does leaf position affect phytohormones?

How does leaf position affect phytohormones?

Reading an article and this was stated factually and I have no clue how.

submitted by aillodi [link] [1 comment] Source: reddit answers: a knowledgebase built on reddit