Re: Scientists Turn Carbon Dioxide Emissions into Stone

From	Sergio <invalid@invalid.com>
Newsgroups	sci.physics, sci.environment
Subject	Re: Scientists Turn Carbon Dioxide Emissions into Stone
Date	2016-06-17 08:02 -0500
Organization	Aioe.org NNTP Server
Message-ID	<nk0scu$1dp$1@gioia.aioe.org> (permalink)
References	(9 earlier) <njrptc$3j9$1@dont-email.me> <njue05$m51$2@gioia.aioe.org> <njufl0$24n6$1@adenine.netfront.net> <njuhfp$s6o$1@gioia.aioe.org> <njur5c$6c7$1@adenine.netfront.net>

Cross-posted to 2 groups.

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On 6/16/2016 1:28 PM, cowbird wrote:
> Sergio wrote:
>
>>> Plant roots exude a wide range of carbon
>>> based compounds. Some of them are natural
>>> herbicides and pesticides.
>>
>> name them.
>>
>> What carbon based substances come out of a living plants roots......
>>
>> the clock is ticking........
>
>  carbohydrates dissolved in water. for instance sugars.
> Basically the same stuff the plant is
> producing by photosynthesis.
>

not much;

http://link.springer.com/article/10.1007/BF02859887

Conclusions

Although the quantities of organic compounds exuding from roots is not 
large, seldom exceeding 0.4% of the carbon photosynthesized, they do 
exert a very strong influence on the soil microorganisms and may be 
significant in affecting plant nutrient availability. There is evidence 
that exudates from the roots of some plants are toxic to roots of 
neighboring plants and to the germination of some seeds.

Most of our information on root exudates has been obtained from 
solution-grown plants so that there are still some important questions 
to be answered about root exudates from soil-grown plants: (a) How much 
organic material is exuded from roots into soil? (b) How far from roots 
do the compounds diffuse? (c) What concentration gradients exist? (d) 
What effects do soil properties have upon exudation? (e) What are the 
main sites of exudation? The application of C14-labeling techniques 
offers a powerful tool with which to answer these questions. Use of 
radioisotopes to investigate the sites of exudation along roots and the 
role of lateral roots in the exudation process should enable us to 
determine what part of the soil will be most affected by root exudates.

It has now been demonstrated conclusively that application of certain 
compounds to leaves affects the quantity and types of exudates. The use 
of foliar sprays to modify root exudation has important implications in 
the fields of plant nutrition, root hygiene, and control of plant-plant 
interactions. Thus, we have before us an exciting field of study 
involving the combined efforts of plant physiologists, microbiologists, 
and soil scientists.

Thread

Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-14 07:53 -0500
  Re: Scientists Turn Carbon Dioxide Emissions into Stone Sergio <invalid@invalid.com> - 2016-06-14 11:12 -0500
  Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-14 17:59 +0000
    Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-14 15:25 -0500
      Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-14 23:52 +0000
        Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-14 19:41 -0500
          Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-15 01:29 +0000
            Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-14 21:44 -0500
              Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-15 03:28 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-15 09:49 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-15 17:17 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-15 16:13 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-15 22:50 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 09:15 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 16:14 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 13:17 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 20:53 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone "nuny@bid.nes" <Alien8752@gmail.com> - 2016-06-15 13:59 -0700
                Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-15 20:04 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone Sergio <invalid@invalid.com> - 2016-06-16 09:44 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 10:12 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone Sergio <invalid@invalid.com> - 2016-06-16 10:43 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 13:28 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone Sergio <invalid@invalid.com> - 2016-06-17 08:02 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-17 12:27 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 13:54 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 20:54 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 16:16 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 21:57 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 17:43 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 23:08 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 19:27 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-17 00:49 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone Eric Stevens <eric.stevens@sum.co.nz> - 2016-06-17 11:47 +1200
  Re: Scientists Turn Carbon Dioxide Emissions into Stone "nuny@bid.nes" <Alien8752@gmail.com> - 2016-06-15 02:16 -0700
    Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-15 17:20 +0000
      Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 07:33 -0500
        Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 16:17 +0000
          Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 13:53 -0500
            Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 20:55 +0000
              Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 16:30 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 22:04 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 17:51 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 23:09 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 18:07 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 23:23 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 19:16 -0500
    Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-15 20:21 -0500
      Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 05:10 +0000
        Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 06:56 -0500
          Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 16:23 +0000
            Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 13:53 -0500
              Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 20:58 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 17:10 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 22:35 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 19:28 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-17 00:50 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-17 08:32 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-17 16:23 +0000

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